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Flow-X─ Function Reference

3-25

Flow-X General functions - fxAGA10ex_M

Ideal

gas

relative

density

IRD

Real

gas

relative

density

RRD

Velocity of sound

m/s

SOS

Compressibility

base conditions

Compressibility

flowing conditions

Supercompressibility

FPV

Ideal

gas

specific

enthalpy

kJ/kg

MASSH0

Real

gas

specific

enthalpy

kJ/kg

MASSH

Real

gas

specific

entropy

kJ/kg/K

MASSS

Ideal gas isobaric heat
capacity

kJ/kg/K

MASSCP0

Real gas isobaric heat
capacity

kJ/kg/K

MASSCP

Real gas isochoric
heat capacity

kJ/kg/K

MASSCV

Ideal gas isobaric heat
capacity

kJ/kmol/K

MOLCP0

Real gas isobaric heat
capacity

kJ/kmol/K

MOLCP

Real gas isochoric
heat capacity

kJ/kmol/K

MOLCV

Ratio of specific heats

CPCV

Isentropic exponent

KAPPA

Critical flow factor

CRITC

Ideal

gas

specific

enthalpy

kJ/kmol

MOLH0

Real

gas

specific

enthalpy

kJ/kmol

MOLH

Isentropic perfect gas
critical flow factor

Isentropic real gas
critical flow factor

CRI

Range

0: In Normal Range

All

inputs

are

within

the

'Normal Range'

1: In Extended Range

One

inputs  within  the
'Extended  Range,
but  none  of  the
inputs outside the
Extended

rang

(outputs

values

have

higher

uncertainty)

2: Out of Range

One

inputs outside the
'Extended Range'
(using the AGA10

RANGE

OOR

Содержание flow-x

Страница 1: ...Function Reference Certified flow calculations Flow and batch calculations Worksheet functions...

Страница 2: ...wholly or in part used or disclosed without the prior consent of Spirit IT B V and then on condition only that this notice is included in any reproduction or disclosure The copyright and the foregoin...

Страница 3: ...3 19 fxAGA10_M 3 22 fxAGA10ex_M 3 24 fxAGA3_C 3 27 fxAGA5_C 3 33 fxAGA8_C 3 34 fxAGA8_M 3 36 fxAGA8_Gross 3 38 fxAPI_Dens15C_1952 3 40 fxAPI_Dens15C_1980 3 43 Chapter 4 Flow X General functions 4 49...

Страница 4: ...xAPI_Table54_2004 4 156 fxAPI_Table54E 4 158 fxAPI_Table59_2004 4 159 fxAPI_Table59E 4 161 fxAPI_Table60_2004 4 162 fxAPI_Table60E 4 164 fxASTM_D1550_RD60 4 165 fxASTM_D1550_Ctl 4 167 fxASTM_D1555_Den...

Страница 5: ...PeriodTotal 4 258 fxPeriodTWA 4 260 fxPeriodWatch 4 261 fxPID 4 262 fxROCAlarm 4 269 fxSarasota_C 4 269 fxSarasota_M 4 271 fxSetOnChange 4 273 fxSetOnCondition 4 273 fxSetOnEvent 4 274 fxSetIndexOnCha...

Страница 6: ...319 fxSetFrequencyOutput 5 320 fxDoubleChronometry 5 321 fxPulseInput 5 324 fxResetPulseInputErrors 5 327 fxPulseOutput 5 328 fxSetPulseOutput 5 329 fxPT100Input 5 329 fxRTDInput 5 330 fxPT100Table 5...

Страница 7: ...ch new release of a document All software packages and software modules or components will be provided with a version number This number consists of three parts A release number a major revision numbe...

Страница 8: ...n that takes all 55 components of the standard Added GERG2004 and GERG2008 functions Revision A 5 Author J C H M van Dal Date February 2015 Minor editorial changes Revision A 6 Author J C H M van Dal...

Страница 9: ...units correction of density or correction of volume The 1952 tables that have to do with the conversion of density and volume are 5 6 23 24 53 and 54 Table 5 6 23 and 24 convert density or volume to...

Страница 10: ...ensity to cover lower temperatures and higher densities The previous standard used a significant digit format which resulted in 4 or 5 decimal places depending on whether the observed temperature was...

Страница 11: ...ASTM Publication Temperature Correction for the volume of Light Hydrocarbons Tables 24E and 23E Superseded by API MPMS Chapter 11 2 4 GPA TP 25 was published in 1998 and replaced the 1952 tables 23 2...

Страница 12: ...1 1984 RD 60 F Pe RD T P API_Table53 1980 API 11 1 1980 Tables 53A 53B and 53D API 11 2 1M 1984 Density T P Density 15 C Pe API_Table54 1980 API 11 1 1980 Tables 54A 54B and 54D API 11 2 1M 1984 Dens...

Страница 13: ...were obtained from extrapolation and lie within the Extrapolated range It is recommended not to use API 2540 outside the Data and Extrapolated ranges For the lubricating oil tables no difference is ma...

Страница 14: ...edure without any rounding and truncating being applied For tables 6A 6B 24A 24B and 54A and 54B the standard makes a distinction between computational and table values for the calculated VCF The tabl...

Страница 15: ...8 0 0 Transition area B 1489 0670 0 0 0 00186840 Jet fuels B 330 3010 0 0 0 0 Fuel oils B 103 8720 0 2701 0 0 Lubricating oils D 0 0 0 34878 0 0 API constants in metric units For the tables in metric...

Страница 16: ...2 16 Flow X Function Reference Introduction API Petroleum Measurement Tables This page is left blank intentionally...

Страница 17: ...nge Default Name Cell A value Input value as percentage of span of cell A Cell A status Input status of cell A 0 Normal 0 Failure Cell B value Input value as percentage of span of cell B Cell B status...

Страница 18: ...hen cell A value is above or equal to the switch up percentage of its range and cell B is healthy Select cell B when cell A fails while cell B is healthy When cell B is currently selected Select cell...

Страница 19: ...B Cell B status Input status of cell B 0 Normal 0 Failure Cell C value Input value as percentage of span of cell C Cell C status Input status of cell C 0 Normal 0 Failure Range type For a description...

Страница 20: ...nd cell A is healthy Select cell A when cell B fails while cell A is healthy Select cell C when cell B and cell A fail and cell C is healthy When cell C is currently selected Select cell B when cell B...

Страница 21: ...hen cell A value fails and cell B is healthy Select cell C when cell A and cell B fail and cell C is healthy When cell B is currently selected Select cell A when cell A is healthy and Auto switchback...

Страница 22: ...tails on the actual limit values used by this function to set output Range Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag gro...

Страница 23: ...ce 3 23 Flow X General functions fxAGA10_M 2 Out of Range One or more inputs outside the Extended Range using the AGA10 calculation is not recommended in this case Calculations Calculations are as doc...

Страница 24: ...fxAGA8 function for details on the actual limit values used by this function to set output Range Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag d...

Страница 25: ...MASSCV Ideal gas isobaric heat capacity kJ kmol K MOLCP0 Real gas isobaric heat capacity kJ kmol K MOLCP Real gas isochoric heat capacity kJ kmol K MOLCV Ratio of specific heats CPCV Isentropic expon...

Страница 26: ...3 26 Flow X Function Reference Flow X General functions fxAGA10ex_M calculation is not recommended in this case Calculations Calculations are as documented in the standard...

Страница 27: ...e of the fluid at metering conditions F 400 200 0 0 Density Down or upstream density of the fluid at metering conditions lbm ft3 0 200 0 Dynamic Viscosity Dynamic viscosity of the fluid lbm ft s DYNVI...

Страница 28: ...tapping t2 3 Recovered pressure Input Temperature represents the downstream temperature at a location Where the pressure has fully recovered t3 Since temperature measurement is usually downstream of t...

Страница 29: ...ils refer to section function ISO5167 Orifice Density correction DENSE XP 0 Fluid The type of fluid being measured 1 Gas 2 Liquid For liquid the expansion factor is set to 1 i e the fluid is considere...

Страница 30: ...Density at upstream tapping 1 lbm ft3 DENSUP 0 Density at downstream tapping Pressure at downstream tapping 2 lbm ft3 DENSDN 0 Downstream density Fully recovered downstream density 3 lbm ft3 DENSREV...

Страница 31: ...tapping psia p3 Fully recovered downstream pressure psia p Differential pressure inH20 60 F pLOSS Pressure loss over the meter psi C Discharge coefficient as calculated by the standard Flow coefficien...

Страница 32: ...pping psia p3 Fully recovered downstream pressure psia Isentropic exponent KTE Temperature exponent Density correction When input Density exponent 0 then the following isentropic corrections are appli...

Страница 33: ...on monoxide O2 Oxygen He Helium Sum of these fractions may not exceed 1 molar fraction COMP 0 1 0 Specific Gravity Molar Mass Ratio i e ratio of the molar mass of the gas and of the molar mass of air...

Страница 34: ...the AGA 8 calculation for gas mixtures that lie outside the Expanded range is not recommended Input value Normal Range Expanded Range EU Pressure 0 20000 0 20000 psia Temperature 200 400 200 400 F Mo...

Страница 35: ...outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error 3 No convergence 4 Mole fractions do not add up to 1 0 0 0001 STS FIOOR CALCERR NOCONV COMPER...

Страница 36: ...e AGA 8 calculation for gas mixtures that lie outside the Expanded range is not recommended Input value Normal Range Expanded Range EU Pressure 0 1379 0 1379 bar a Temperature 129 204 129 204 C Mole f...

Страница 37: ...on outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error 3 No convergence 4 Mole fractions do not add up to 1 0 0 0001 STS FIOOR CALCERR NOCONV COMP...

Страница 38: ...the Detailed Characterization Method Input value Normal Range EU Temperature 32 130 F Pressure 0 1200 psia Gross heating value 475 1210 Btu ft3 Relative density 0 554 0 87 Carbon dioxide 0 00 0 30 mol...

Страница 39: ...rmal 1 Input argument out of range 2 Calculation error 3 No convergence STS FIOOR CALCERR NOCONV Compressibility factor 1 Molar mass lb lbmo l 0 Density Density at observed pressure and temperature lb...

Страница 40: ...ement Tables Metric Edition Metric Units of Measurement 1952 API MPMS 11 2 1M Compressibility Factors for Hydrocarbons 638 1074 Kilograms per Cubic Meter Range First Edition August 1984 Function input...

Страница 41: ...CTL the combination of input values is 0 In Range 1 Out of Range CTLOOR 0 CPL calc out of range With respect to the standard used for the calculation of CPL the combination of input values is 0 In Ra...

Страница 42: ...sity values is 0 0001 Conversion method 2 from standard to observed conditions The function performs straightforward calculations to determine the Density at observed conditions 1 The CTL value is cal...

Страница 43: ...lues is implemented such that the example calculations as specified in both standards are exactly reproduced Compliance API MPMS 11 1 Volume X API Standard 2540 Table 53A Generalized Crude Oils Correc...

Страница 44: ...n Area 5 B Jet Fuels 6 B Fuel Oil 7 D Lubricating Oil PRDTYP 1 API 2540 rounding 0 Disabled The calculations are performed with full precision and the final CTL value is rounded as specified by input...

Страница 45: ...rdance with table 53 Hydrometer correction Only applies for conversion method 1 From observed to standard conditions 0 Disabled 1 Enabled HYDROCOR 0 API 11 2 1M rounding 0 Disabled The calculation of...

Страница 46: ...TL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha Thermal expansion factor 1 C ALPHA 0 F Compressibili...

Страница 47: ...rounding is enabled then the density and temperature are rounded and the calculations are performed in accordance with the rounding and truncating rules of the standard 10 The CPL value is calculated...

Страница 48: ...s rounded to 4 or 5 decimal places or not rounded at all 6 The compressibility factor is calculated according to API MPMS 11 2 1M from the input density and temperature If API 11 2 1M rounding is enab...

Страница 49: ...nge Default Name Cell A value Input value as percentage of span of cell A Cell A status Input status of cell A 0 Normal 0 Failure Cell B value Input value as percentage of span of cell B Cell B status...

Страница 50: ...hen cell A value is above or equal to the switch up percentage of its range and cell B is healthy Select cell B when cell A fails while cell B is healthy When cell B is currently selected Select cell...

Страница 51: ...B Cell B status Input status of cell B 0 Normal 0 Failure Cell C value Input value as percentage of span of cell C Cell C status Input status of cell C 0 Normal 0 Failure Range type For a description...

Страница 52: ...nd cell A is healthy Select cell A when cell B fails while cell A is healthy Select cell C when cell B and cell A fail and cell C is healthy When cell C is currently selected Select cell B when cell B...

Страница 53: ...hen cell A value fails and cell B is healthy Select cell C when cell A and cell B fail and cell C is healthy When cell B is currently selected Select cell A when cell A is healthy and Auto switchback...

Страница 54: ...function for details on the actual limit values used by this function to set output Range Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag descrip...

Страница 55: ...eneral functions fxAGA10_M values have higher uncertainty 2 Out of Range One or more inputs outside the Extended Range using the AGA10 calculation is not recommended in this case Calculations Calculat...

Страница 56: ...fxAGA8 function for details on the actual limit values used by this function to set output Range Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag d...

Страница 57: ...MASSCV Ideal gas isobaric heat capacity kJ kmol K MOLCP0 Real gas isobaric heat capacity kJ kmol K MOLCP Real gas isochoric heat capacity kJ kmol K MOLCV Ratio of specific heats CPCV Isentropic expon...

Страница 58: ...4 58 Flow X Function Reference Flow X General functions fxAGA10ex_M calculation is not recommended in this case Calculations Calculations are as documented in the standard...

Страница 59: ...e of the fluid at metering conditions F 400 200 0 0 Density Down or upstream density of the fluid at metering conditions lbm ft3 0 200 0 Dynamic Viscosity Dynamic viscosity of the fluid lbm ft s DYNVI...

Страница 60: ...tapping t2 3 Recovered pressure Input Temperature represents the downstream temperature at a location Where the pressure has fully recovered t3 Since temperature measurement is usually downstream of t...

Страница 61: ...67 Orifice Density correction DENSE XP 0 Fluid The type of fluid being measured 1 Gas 2 Liquid For liquid the expansion factor is set to 1 i e the fluid is considered to be incompressible FLUID 0 Drai...

Страница 62: ...ft 3 DENSUP 0 Density at downstream tapping Pressure at downstream tapping 2 lbm ft 3 DENSDN 0 Downstream density Fully recovered downstream density 3 lbm ft 3 DENSREV 0 Reynolds number The pipe Reyno...

Страница 63: ...e at downstream tapping psia p3 Fully recovered downstream pressure psia p Differential pressure inH20 60 F pLOSS Pressure loss over the meter psi C Discharge coefficient as calculated by the standard...

Страница 64: ...he downstream tapping psia p3 Fully recovered downstream pressure psia Isentropic exponent KTE Temperature exponent Density correction When input Density exponent 0 then the following isentropic corre...

Страница 65: ...on monoxide O2 Oxygen He Helium Sum of these fractions may not exceed 1 molar fraction COMP 0 1 0 Specific Gravity Molar Mass Ratio i e ratio of the molar mass of the gas and of the molar mass of air...

Страница 66: ...the AGA 8 calculation for gas mixtures that lie outside the Expanded range is not recommended Input value Normal Range Expanded Range EU Pressure 0 20000 0 20000 psia Temperature 200 400 200 400 F Mo...

Страница 67: ...outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error 3 No convergence 4 Mole fractions do not add up to 1 0 0 0001 STS FIOOR CALCERR NOCONV COMPER...

Страница 68: ...e AGA 8 calculation for gas mixtures that lie outside the Expanded range is not recommended Input value Normal Range Expanded Range EU Pressure 0 1379 0 1379 bar a Temperature 129 204 129 204 C Mole f...

Страница 69: ...on outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error 3 No convergence 4 Mole fractions do not add up to 1 0 0 0001 STS FIOOR CALCERR NOCONV COMP...

Страница 70: ...d recommends to use the Detailed Characterization Method Input value Normal Range EU Temperature 32 130 F Pressure 0 1200 psia Gross heating value 475 1210 Btu ft3 Relative density 0 554 0 87 Carbon d...

Страница 71: ...allbac k Status 0 Normal 1 Input argument out of range 2 Calculation error 3 No convergence STS FIOOR CALCERR NOCONV Compressibility factor 1 Molar mass lb lbmo l 0 Density Density at observed pressur...

Страница 72: ...dition Metric Units of Measurement 1952 API MPMS 11 2 1M Compressibility Factors for Hydrocarbons 638 1074 Kilograms per Cubic Meter Range First Edition August 1984 Function inputs Remark EU SW tag Ra...

Страница 73: ...R 0 CPL calc out of range With respect to the standard used for the calculation of CPL the combination of input values is 0 In Range 1 Out of Range CPLOOR 0 Calculations The calculations depend on the...

Страница 74: ...ndard to observed conditions The function performs straightforward calculations to determine the Density at observed conditions 5 The CTL value is calculated according to API 1952 Table 54 6 The compr...

Страница 75: ...lues is implemented such that the example calculations as specified in both standards are exactly reproduced Compliance API MPMS 11 1 Volume X API Standard 2540 Table 53A Generalized Crude Oils Correc...

Страница 76: ...g Oil PRDTYP 1 API 2540 rounding 0 Disabled The calculations are performed with full precision and the final CTL value is rounded as specified by input CTL decimal places 1 Enabled for computational v...

Страница 77: ...f the compressibility factor F is performed with full precision 1 Enabled API MPMS 11 2 1M rounding and truncating rules are applied The compressibility factor F is rounded to 3 decimal places as spec...

Страница 78: ...dard used for the calculation of CTL the combination of input values is 0 In Range 1 Out of Range CTLOOR 0 CPL calc out of range With respect to the standard used for the calculation of CPL the combin...

Страница 79: ...difference between two consecutive density values is either 0 05 or 0 07 for the transition area or 0 000001 depending of API2540 rounding being enabled or not 14 For refined products the entire iter...

Страница 80: ..._Dens15C_1980 15 The CPL value is calculated from the compressibility factor and the Observed pressure and Equilibrium pressure input values 16 The density at 15 C equilibrium pressure is calculated b...

Страница 81: ...S 11 2 5 A Simplified Vapor Pressure Correlation for Commercial NGLs September 2007 GPA TP 15 A Simplified Vapor Pressure Correlation for Commercial NGLs September 2007 also covers GPA TP 15 1988 API...

Страница 82: ...ng applied 1 Enabled Rounding as defined in GPA TP15 1988 API MPMS 11 2 2 Addendum 1994 TP15RND 0 P100 Correlation Only used when Equilibrium pressure mode is set to GPA TP 15 0 Disabled The standard...

Страница 83: ...unded according to input API 11 2 2M rounding CPL 1 CTPL Combined volume correction factor CTPL CTL CPL CTPL 1 F Compressibility factor The output value will be either rounded or not depending input A...

Страница 84: ...quilibrium pressure 1 When API 11 2 4 rounding is enabled the input density and temperature values are rounded in accordance with the standard 2 At the start of the iteration the density at 15 C equil...

Страница 85: ...ing is enabled Limit 0 05 kg m3 else if GPA TP 15 rounding is enabled Limit 0 005 kg m3 else Limit 0 00001 kg m3 14 If API 11 2 4 rounding is enabled then the density at 15 C equilibrium pressure is r...

Страница 86: ...C API MPMS 11 2 5 A Simplified Vapor Pressure Correlation for Commercial NGLs September 2007 GPA TP 15 A Simplified Vapor Pressure Correlation for Commercial NGLs September 2007 also covers GPA TP 15...

Страница 87: ...unding 0 Disabled Full precision no rounding and truncating applied 1 Enabled Rounding as defined in GPA TP15 1988 API MPMS 11 2 2 Addendum 1994 TP15RND 0 P100 Correlation 0 Disabled The standard corr...

Страница 88: ...correction factor for temperature Value will be rounded according to input API 11 2 4 rounding CTL 1 CPL Volume correction factor for pressure Value will be rounded according to input API 11 2 2M rou...

Страница 89: ...3 46 C T 60 C CPLOOR 0 GPA TP 15 out of range Only set when the GPA TP 15 calculation is enabled With respect to the GPA TP 15 standard the combination of input values is 0 In Range 1 Out of Range The...

Страница 90: ...sity at 15 C equilibrium pressure For this purpose the relative density at 15 C equilibrium pressure is calculated according to Table 24E from the relative density at 60 F equilibrium pressure and at...

Страница 91: ...ose the relative density at 15 C equilibrium pressure is calculated according to Table 24E from the relative density at 60 F equilibrium pressure and at 15 C This relative density value is then conver...

Страница 92: ...1 Compressibility Factors for Hydrocarbons 0 90 API Gravity Range First Edition August 1984 Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag descr...

Страница 93: ...0 In Range 1 Out of Range CPLOOR 0 Calculations The calculations depend on the conversion method Conversion method 1 from observed to standard conditions The function performs the following iterative...

Страница 94: ...rd calculations to determine the API Gravity at observed conditions 2 The CTL value is calculated according to API 1952 Table 6 3 Because API 11 2 1 requires the API gravity value at 60 F the API grav...

Страница 95: ...ty to API Gravity at 60 F First Edition August 1980 API MPMS 11 1 Volume XIII Table 5D Generalized Lubricating Oils Correction of Observed API Gravity to API Gravity at 60 F January 1982 API MPMS 11 1...

Страница 96: ...pecified in Table 6 meaning that the CTL value has 4 decimal places in all cases 3 Enabled with 5 decimal places API 2540 rounding and truncating rules are applied and in case of conversion method 2 s...

Страница 97: ...essure or the observed temperature and pressure API API 0 CTL Volume correction factor for temperature Value will be rounded according to input API2540 rounding CTL 1 CPL Volume correction factor for...

Страница 98: ...a factor and the differential temperature observed temperature 60 F If API2540 rounding is enabled then the intermediate results are rounded or truncated as specified API 2540 Table 5 8 Depending on t...

Страница 99: ...the input API gravity 4 The Alpha factor is calculated according from the density at 60 F equilibrium pressure and the K0 K1 and K2 factor If API2540 rounding is enabled then the intermediate results...

Страница 100: ...ard is the printed table It also includes the Calculation Procedure to obtain the table values based on the rounding and truncating of all input intermediate and output values The function provides th...

Страница 101: ...Calculation out of range With respect to the standard the input values are 0 In Range 1 Out of Range OOR 0 Calculations The calculations are in either full or partial compliance with the standards dep...

Страница 102: ...y Turbine or Displacement Meters Data Limits API MPMS 11 2 1M defines the following limits on the input values 638 to 1074 kg m3 30 to 90 C 0 to 103 bar g It is advised not to use the standard outside...

Страница 103: ...PI 11 2 1M rounding 1 bar F 0 Calculation out of range With respect to the standard the input values are 0 In Range 1 Out of Range OOR 0 Calculations The calculations are in either full or partial com...

Страница 104: ...ure Rankin Pseudo Critical Temperature 0 96 With Pseudo Critical Temperature Rankin 621 418 822 686 RD60 1737 86 RD60 2 Observed Temperature Rankin Observed Temperature F 459 7 API Rounding The actual...

Страница 105: ...uts Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error STS FIOOR CALCERR 1 CPL Volume correction factor for pressure Value will be rounded according to i...

Страница 106: ...the check on the pseudo critical temperature as defined for fxAPI_MPMS_11_2_2 is applied Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Density at...

Страница 107: ...output value will be either rounded or not depending input API 11 2 2M rounding 1 bar F 0 Calculation out of range With respect to the standard the input values are 0 In Range 1 Out of Range OOR 0 Ca...

Страница 108: ...lculations are performed with full precision A convergence limit of 1e 10 lbm ft3 will be applied for the iterative calculations 1 Enabled The calculations are performed in full compliance with the st...

Страница 109: ...pressure psia 0 2000 0 API rounding 0 Disabled The calculations are performed with full precision A convergence limit of 1e 10 lbm ft3 will be applied for the iterative calculations 1 Enabled The calc...

Страница 110: ...ure Equilibrium pressure at the observed temperature Also referred to as vapor pressure or saturated pressure psia EQUIPRES 0 Calculation out of range With respect to the standard the input values are...

Страница 111: ...xample calculations as specified in both standards are exactly reproduced Compliance API MPMS 11 1 Volume X API Standard 2540 Table 23A Generalized Crude Oils Correction of Observed Relative Density t...

Страница 112: ...ces if CTL 1 5 decimal places if CTL 1 2 Enabled for table value API 2540 rounding and truncating rules are applied and in case of conversion method 2 standard to observed the table value for CTL as s...

Страница 113: ...han atmospheric pressure in compliance with API MPMS 12 2 par 12 2 5 4 psig EQUIPRES 0 2000 0 Conversion method 1 From observed to standard conditions 2 From standard to observed conditions CONVERSIO...

Страница 114: ...sity 3 The hydrometer correction on the observed density is applied provided that this correction is enabled 4 At the start of the iteration the initial value for density and relative density at 60 F...

Страница 115: ...000001 depending of API2540 rounding being enabled or not 19 For refined products the entire iteration loop is repeated if the relative density at 60 F equilibrium pressure appears to be in a differe...

Страница 116: ...then the input density and temperature are rounded and the calculations are performed in accordance with the rounding and truncating rules of the standard 9 The CPL value is calculated from the compre...

Страница 117: ...t Tables American Edition United States Units of Measurement 1952 API MPMS 11 2 1 Compressibility Factors for Hydrocarbons 0 90 API Gravity Range First Edition August 1984 Function inputs Remark EU SW...

Страница 118: ...ge With respect to the standard used for the calculation of CPL the combination of input values is 0 In Range 1 Out of Range CPLOOR 0 Calculations The calculations depend on the conversion method Conv...

Страница 119: ...Conversion method 2 from standard to observed conditions The function performs straightforward calculations to determine the Specific Gravity at observed conditions 1 The CTL value is calculated acco...

Страница 120: ...50 F to 140 F Metering Temperature Second Edition October 1986 API MPMS 11 2 5 A Simplified Vapor Pressure Correlation for Commercial NGLs September 2007 GPA TP 15 A Simplified Vapor Pressure Correla...

Страница 121: ...D 0 P100 Correlation 0 Disabled The standard correlation is commonly used for pure products such as propane butane and natural gasoline It only requires the relative density and the temperature to cal...

Страница 122: ...ted by GPA TP 15 Will be set to 0 when equilibrium pressure is below atmospheric pressure psia EQUIPC UR 0 CTL calc out of range With respect to the API 11 2 4 standard the combination of input values...

Страница 123: ...essure mode either value of input Equilibrium pressure value is used or the equilibrium pressure vapor pressure is calculated according to GPA TP 15 Whether the GPA TP 15 rounding and truncation rules...

Страница 124: ...re 3 Depending on the value of input Equilibrium pressure mode either value of input Equilibrium pressure value is used or the equilibrium pressure vapor pressure is calculated according to GPA TP 15...

Страница 125: ...tion and tag group Observed API Observed API gravity API 20 120 0 Observed temperature Temperature at which the API gravity is observed F 100 400 60 Function outputs Remark EU SW tag Alarm Fallback St...

Страница 126: ...ction of Observed API Gravity to API Gravity at 60 F First Edition August 1980 API MPMS 11 1 Volume XIII Table 5D Generalized Lubricating Oils Correction of Observed API Gravity to API Gravity at 60 F...

Страница 127: ...al value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha Thermal expansion factor 1 F ALPHA 0 Product When input Product is B Auto selec...

Страница 128: ...Pressure Volume Correction Factors for Generalized Crude Oils Refined Products and Lubricating Oils May 2004 Function inputs Remark EU SW tag Range Defaul t Name Optional tag name tag description and...

Страница 129: ...or CTPL CTL CPL CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation...

Страница 130: ...g for an API gravity of 70 the table only specifies values between 0 150 F Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag gro...

Страница 131: ...F Against API Gravity at 60 F January 1982 Function inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group API at 60 F API gravity at 60...

Страница 132: ...e Value will be rounded according to input API2540 rounding CTL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual va...

Страница 133: ...description and tag group API at 60 F API gravity at 60 F and 0 psig API 20 120 0 Observed temperature Temperature at which the API gravity is observed F 100 400 60 Observed pressure Pressure at whic...

Страница 134: ...culation K2 0 Alpha Thermal expansion factor 1 F ALPHA 0 F Compressibility factor 1 psi F 0 Product When input Product is B Auto select then the output is set to the actual selected product of table B...

Страница 135: ...uts Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Observed specific gravity Specific gravity at the observed temperature 0 1 3 0 Observed temperat...

Страница 136: ...taken from a hydrometer as specified in the API 2540 standard Compliance API MPMS 11 1 Volume X API Standard 2540 Table 23A Generalized Crude Oils Correction of Observed Relative Density to Relative...

Страница 137: ...constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha Thermal expansion factor 1 F A...

Страница 138: ...ume Correction Factors for Generalized Crude Oils Refined Products and Lubricating Oils May 2004 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Obs...

Страница 139: ...input API rounding CPL 1 CTPL Combined volume correction factor CTPL CTL CPL CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculatio...

Страница 140: ...e Optional tag name tag description and tag group Observed relative density Relative density at the observed temperature 0 0 75 0 Observed temperature Temperature at which the relative density is obse...

Страница 141: ...95 F Function inputs and outputs Function inputs Remark EU SW tag Range Defaul t Name Optional tag name tag description and tag group Specific gravity 60 F Specific gravity at 60 F 0 1 3 0 Observed te...

Страница 142: ...against Relative Density at 60 60 F First Edition August 1980 API MPMS 11 1 Volume X API Standard 2540 Table 24B Generalized Products Correction of Volume to 60 F against Relative Density at 60 60 F F...

Страница 143: ...ror STS FIOOR CALCERR CTL Volume correction factor for temperature Value will be rounded according to input API2540 rounding CTL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actua...

Страница 144: ...ay 2004 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Relative density at 60 F Relative density at 60 F and 0 psig 0 1 3 0 Observed temperature Te...

Страница 145: ...or CTPL CTL CPL CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation...

Страница 146: ...Range Default Name Optional tag name tag description and tag group Relative density at 60 F Relative density at 60 F 0 0 75 0 Observed temperature Temperature at which the relative density is observed...

Страница 147: ...on inputs Remark EU SW tag Range Defaul t Name Optional tag name tag description and tag group Observed density Density at the observed temperature kg m 3 0 1300 0 Observed temperature C 100 200 15 Fu...

Страница 148: ...oducts Correction of Observed Density to Density at 15 C First Edition August 1980 API MPMS 11 1 Volume XIV Table 53D Generalized Lubricating Oils Correction of Observed Density to Density at 15 C Jan...

Страница 149: ...tual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha Thermal expansion factor 1 C ALPHA 0 Product When input Product is B Auto sel...

Страница 150: ...e Correction Factors for Generalized Crude Oils Refined Products and Lubricating Oils May 2004 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Obser...

Страница 151: ...CPL CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha...

Страница 152: ...g group Observed density Density at the observed temperature kg m3 0 750 0 Observed temperature Temperature at which the relative density is observed C 100 150 15 API rounding 0 Disabled The calculati...

Страница 153: ...tion inputs and outputs Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Density 15 C Specific gravity at 60 F Kg m3 0 1300 0 Observed temperature C...

Страница 154: ...5 C Against Density at 15 C January 1982 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Density at 15 C Density at 15 C and the equilibrium pressur...

Страница 155: ...cording to input API2540 rounding CTL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used fo...

Страница 156: ...2004 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Density at 15 C Density at 15 C and 0 bar g kg m3 0 1300 0 Observed temperature Temperature at...

Страница 157: ...TPL CTL CPL CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2...

Страница 158: ...tag description and tag group Density at 15 C 0 750 0 Observed temperature Temperature at which the relative density is observed C 100 150 15 API rounding 0 Disabled The calculations are performed wit...

Страница 159: ...me Correction Factors for Generalized Crude Oils Refined Products and Lubricating Oils May 2004 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Obse...

Страница 160: ...CPL CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha...

Страница 161: ...up Observed density Density at the observed temperature kg m3 0 750 0 Observed temperature Temperature at which the relative density is observed C 100 200 20 API rounding 0 Disabled The calculations a...

Страница 162: ...2004 Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Density at 20 C Density at 20 C and 0 bar g kg m3 0 1300 0 Observed temperature Temperature at...

Страница 163: ...L CTPL 1 K0 Actual value of constant K0 used for CTL calculation K0 0 K1 Actual value of constant K1 used for CTL calculation K1 0 K2 Actual value of constant K2 used for CTL calculation K2 0 Alpha Th...

Страница 164: ...description and tag group Density at 20 C 0 750 0 Observed temperature Temperature at which the relative density is observed C 100 150 20 API rounding 0 Disabled The calculations are performed with f...

Страница 165: ...tion applies a linear interpolation between table values based on the input values The table specifies relative density at 60 F values that are limited to a low value of 0 621 and a high value of 0 63...

Страница 166: ...o 1 2 The relative density corrected for pressure is calculated by dividing the observed relative density by the CPL value 3 The CTL value and the relative density at 60 F equilibrium pressure is calc...

Страница 167: ...on and tag group Relative density at 60 F 0 1 0 Observed temperature Temperature at which the relative density is observed F 100 150 20 Function outputs Remark EU SW tag Alarm Fallback Status 0 Normal...

Страница 168: ...oundaries The standard defines an upper limit for the temperature of 150 F for p xylene and 140 F for all other products API MPMS 11 2 1 defines the following limits on the input values 0 to 90 API 20...

Страница 169: ...temperature and pressure are 0 In Range 1 Out of Range API_OOR 0 Calculations ASTM D1555 contains both formulas and tables for the Ctl called VCF in the standard for the different product Please note...

Страница 170: ...viding the observed density by the CTL and CPL values 7 Steps 2 through 6 are repeated until the absolute difference between two consecutive relative density values is less than the convergence limit...

Страница 171: ...ription and tag group Observed temperature Temperature at which the relative density is observed F 100 250 20 ASTM D1555 rounding 0 Disabled The calculations are performed with full precision 1 Enable...

Страница 172: ...D1555_Ctl Calculations ASTM D1555 contains both formulas and tables for the Ctl called VCF in the standard for the different product Please note the formulas are the standard and not the tables This f...

Страница 173: ...ement Flow increment with which the input value is weighed Must refer to the corresponding output from a TotalizerRate or TotalizerDelta function Negative values will be ignored Same as linked cell 0...

Страница 174: ...uts and outputs Function inputs Remark EU SW tag Range Default Name Name used for tag prefix and retentive storage First ID Optional Batch identification of the first historical batch for which the va...

Страница 175: ...tch output value and the current latch output value is reset to 0 Identification Batch identification Can be any string of maximum 255 characters long ID Note When the latch and reset commands are giv...

Страница 176: ...1 Enabled 0 Disabled 1 Enabled EN Reset command Trigger to reset the batch At a batch reset the current average is stored in the previous value and the current value is reset to 0 Identification Batch...

Страница 177: ...1 Enabled 0 Disabled 1 Enabled EN Reset command Trigger to reset the batch At a batch reset the current average is stored in the previous value and the current value is reset to 0 Identification Batch...

Страница 178: ...any string of maximum 255 characters long If multiple identifications need to be stored for future referral e g the batch number the ship name and the nomination number then the individual strings sh...

Страница 179: ...be averaged Same as linked cell 1e11 1e11 Enabled 0 Disabled 1 Enabled EN Reset command Trigger to reset the batch At a batch reset the current latch is stored in the previous value and the current la...

Страница 180: ...tch reset the current watched value is stored in the previous value and the current watched value is reset to 0 Identification Batch identification Can be any string of maximum 255 characters long If...

Страница 181: ...on inputs Remark EU SW tag Range Default Name Input value The value to be converted Input unit Unit of the value to be converted Use one of the xu_ unit constants Output unit Unit of the output value...

Страница 182: ...er the absolute or the relative difference needs to be checked The unit of the deviation limit will be in accordance 1 Absolute 2 Relative DEVTYP 1 Deviation limit The unit depends on the Deviation ty...

Страница 183: ...g 0 Disabled The calculations are performed with full precision A convergence limit of 1e 10 kg m3 will be applied for the iterative calculations 1 Enabled The calculations are performed in full compl...

Страница 184: ...up to 270 MPa 39160 psi and 104K to 450K 272 350 F for pressures up to 40 MPa 5800 psi Function inputs Remark EU Range Default Name Optional tag name tag description and tag group Temperature F 300 2...

Страница 185: ...nal tag name tag description and tag group Temperature C 200 200 0 Pressure bar a 3000 0 Function outputs Remark EU Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error 3 No conv...

Страница 186: ...200 400 0 Composition Standard composition as defined in section Standard gas composition mol mol 0 1 0 Function outputs Remark EU Fallback Status 0 Normal 1 Input argument out of range 2 Calculation...

Страница 187: ...ne n Nonane n Octane n Decane n Octane Helium Nitrogen Argon Nitrogen Neo Pentane Iso Pentane Notes Components Water Hydrogen sulphide and Carbon monoxide are not supported by the publication and will...

Страница 188: ...name When left empty the UniqueMethod setting as defined for the report definition is used for the report file name Flow Xpress section Reports Printer Optional printer Must be the name of one of the...

Страница 189: ...at conditions outside the Expanded range is not recommended Input value Normal Range Expanded Range EU Pressure 0 35 0 70 MPa a Temperature 90 450 60 700 K Pressure 0 350 0 700 bar a Temperature 183...

Страница 190: ...rmal Range All inputs are within the Normal Range 1 In Extended Range One or more inputs within the Extended Range but none of the inputs outside the Extended rang outputs values have higher uncertain...

Страница 191: ...50 0 700 bar a Temperature 183 177 213 427 C Mole fraction of Methane 0 00 1 00 0 00 1 00 Mole fraction of Ethane 0 00 1 00 0 00 1 00 Mole fraction of Propane 0 00 1 00 0 00 1 00 Mole fraction of Buta...

Страница 192: ...COMPERR Vapor fraction FV 0 Compressibility vapor Compressibility of the vapor fraction of the mixture ZV 0 Compressibility liquid Compressibility of the liquid fraction of the mixture ZL 0 Compressi...

Страница 193: ...lation for Commercial NGLs September 2007 GPA Technical Publication TP 15 A Simplified Vapor Pressure Correlation for Commercial NGLs September 2007 ASTM Technical Publication Stock No PETROLTBL TP15...

Страница 194: ...sity and the temperature to calculate the vapor pressure 1 Enabled The improved correlation requires the vapor pressure at 100 F 37 8 C This method is better suited for varied NGL mixes Where differen...

Страница 195: ...the gas is saturated with water and the composition is normalized to unity GPA 2172 prescribes that the most recent edition of GPA2145 used for the individual component values The function provides th...

Страница 196: ...3 VOLGHV_WET 0 Molar Mass Wet lbm lbmol MOLMASS_WET 0 Molar Mass Ratio Wet ISG_WET 0 Relative Density Wet Based on the compressibility of wet air RRD_WET 0 Compressibility Wet Z_DWET 0 Gross Heating V...

Страница 197: ...ing the GPA2145 table values However the calculations are performed at full precision so not with intermediate rounding as shown in the examples of the standard Please note that the function uses the...

Страница 198: ...on the water fraction value of input Composition is set to the water saturated mole fraction and the composition is normalized to unity GPA 2172 prescribes that the most recent edition of GPA2145 used...

Страница 199: ...Wet MJ kg MASGHV_WET 0 Net Heating Value Wet MJ m3 VOLNHV_WET 0 Gross Heating Value Dry MJ m3 VOLGHV_DRY 0 Molar Mass Dry kg kmol MOLMASS_DRY 0 Molar Mass Ratio Dry ISG_DRY 0 Relative Density Dry RRD...

Страница 200: ...amples of the standard Please note that the function uses the input composition as is so does not apply normalization to 1 When the water fraction input value is above the water fraction of the satura...

Страница 201: ...lified equation that is considered to be adequate for custody transfer applications Therefore compositional properties are calculated for the following gas compositions Wet gas composition the water f...

Страница 202: ...ane is larger than zero 1 Add to i Pentane 2 Add to n Pentane 3 Neglect NEOC5_MODE 1 Function outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error...

Страница 203: ...aturated Z_SAT 0 Gross Heating Value Saturated Btu lbm MASGHV_SAT 0 Net Heating Value Saturated Btu ft3 VOLNHV_SAT 0 Calculations The calculations are as documented in the GPA 2172 standard using the...

Страница 204: ...action of input Composition is taken as the actual water fraction Dry gas composition the water fraction is set to 0 and the composition is normalized to unity Saturated gas composition the water frac...

Страница 205: ...ASS_WET 0 Molar Mass Ratio Wet ISG_WET 0 Relative Density Wet Based on the compressibility of wet air RRD_WET 0 Compressibility Wet Z_DWET 0 Gross Heating Value Wet MJ kg MASGHV_WET 0 Net Heating Valu...

Страница 206: ...tions are performed at full precision so not with intermediate rounding as shown in the examples of the standard Please note that the function uses the input composition as is so does not apply normal...

Страница 207: ...picture below Region 1 Water Region 2 Superheated steam Region 3 Water Region 4 Saturation line saturated steam water Region 5 Superheated steam References Revised Release on the IAPWS Industrial For...

Страница 208: ...onvergence Density lbm ft3 0 Enthalpy Energy flow Mass flow Enthalpy btu lbm 0 Region Actual IAPWS IF97 region 0 Combination of t and p is outside the valid range 1 Water 2 Steam 3 Pressurized water 4...

Страница 209: ...rom the temperature in pressure For region 3 an iterative calculation is required because the Equation Of State for this region calculates the pressure from a known temperature and density iteration A...

Страница 210: ...icture below Region 1 Water Region 2 Superheated steam Region 3 Water Region 4 Saturation line saturated steam water Region 5 Superheated steam References Revised Release on the IAPWS Industrial Formu...

Страница 211: ...convergence Density kg m3 0 Enthalpy Energy flow Mass flow Enthalpy MJ kg 0 Region Actual IAPWS IF97 region 0 Combination of t and p is outside the valid range 1 Water 2 Steam 3 Pressurized water 4 A...

Страница 212: ...ed directly from the temperature in pressure For region 3 an iterative calculation is required because the Equation Of State for this region calculates the pressure from a known temperature and densit...

Страница 213: ...g used for the pressure transmitter This can be achieved by using the fxIndex function for the cell that represents the PT_HISCALE tag In some cases one and the same input signal is used for multiple...

Страница 214: ...ue e g flow rate or pulse frequency Reference values Array of reference values assuming the following sequence Point 1 Input value Point 1 Output value Point 2 Input value Point 2 Output value etc The...

Страница 215: ...In Out Out In x y Where x Input value y Interpolated value InL Closest input reference value that is smaller than the input value InH Closest input reference value that is larger than the input value...

Страница 216: ...uid at metering conditions kg m3 0 Dynamic Viscosity Dynamic viscosity of the fluid Pa s 0 Isentropic Exponent Also referred to as kappa For an ideal gas this coefficient is equal to the ratio of the...

Страница 217: ...t 2 Constant Isentropic expansion using input Temperature Exponent as the temperature referral exponent Please note that this value must be 0 3 Joule Thomson Isenthalpic expansion using input Temperat...

Страница 218: ...ure at downstream tapping p2 bar a Recovered downstream pressure Fully recovered downstream pressure p3 bar a Upstream temperature Temperature at upstream tapping t1 C Temperature at downstream tappin...

Страница 219: ...metering conditions kg m3 0 Dynamic Viscosity Dynamic viscosity of the fluid Pa s 0 Isentropic Exponent Also referred to as kappa For an ideal gas this coefficient is equal to the ratio of the specifi...

Страница 220: ...ce versa 1 1 Isentropic expansion using 1 as the temperature referral exponent 2 Constant Isentropic expansion using input Temperature Exponent as the temperature referral exponent Please note that th...

Страница 221: ...essure at upstream tapping p1 bar a Pressure at downstream tapping Pressure at downstream tapping p2 bar a Recovered downstream pressure Fully recovered downstream pressure p3 bar a Upstream temperatu...

Страница 222: ...Function inputs Remark EU Range Default Name Optional tag name tag description and tag group Differential Pressure Differential pressure over the primary flow device measured at the up and downstream...

Страница 223: ...ISO5167 Corner 2 ISO5167 D and D 2 3 ISO5167 Flange 4 ISO15377 Quarter circle 5 ISO15377 Conical entrance The calculation of the discharge and expansion factor are equal for the quarter circle orific...

Страница 224: ...sion using input Temperature Exponent as the Joule Thomson coefficient C bar This method is prescribed by ISO5167 1 2003 3 Temperatur e Exponent Refer to input Temperature Correction Unit depends on i...

Страница 225: ...nstream tapping t2 C 0 Downstream Temperature Fully recovered downstream temperature t3 C 0 Upstream density Density at upstream tapping 1 kg m3 0 Density at downstream tapping Pressure at downstream...

Страница 226: ...5 273 2 3 3 2 TE K p p t t 15 273 15 273 1 3 3 1 TE K p p t t When input Temperature correction is set to 3 then an isenthalpic expansion based on the linear Joule Thomson correction as defined in ISO...

Страница 227: ...ecovered downstream pressure kg m3 p1 Upstream pressure bar a p2 Pressure at the downstream tapping bar a p3 Fully recovered downstream pressure bar a Isentropic exponent KDE Density exponent Note In...

Страница 228: ...compressibility calculation e g AGA8 at p2 and t3 in the application and calculating the upstream density Where the value of p2 is provided as an output by the ISO5167 function Subsequently the upstr...

Страница 229: ...the fluid at metering conditions kg m3 0 Dynamic Viscosity Dynamic viscosity of the fluid Pa s 0 Isentropic Exponent Also referred to as kappa For an ideal gas this coefficient is equal to the ratio...

Страница 230: ...at a location Where the pressure has fully recovered t3 Since temperature measurement is usually downstream of the flow device this is the most common setting 2 Temperature Correction This parameter...

Страница 231: ...n mbar The value of input Pressure Loss Value is taken as a value in mbar 2 Percentage of differential pressure The value of input Pressure Loss Value is taken as a percentage from input Differential...

Страница 232: ...ping t1 C 0 Temperature at downstream tapping Temperature at downstream tapping t2 C 0 Downstream Temperature Fully recovered downstream temperature t3 C 0 Upstream density Density at upstream tapping...

Страница 233: ...or an ideal gas this coefficient is equal to the ratio of the specific heat capacity at constant pressure to the specific heat at constant volume According to the ISO standard this ratio may be used w...

Страница 234: ...lly recovered 3 Density Exponent This factor is used when density correction is enabled The formula 1 will be used when the input value is set to 0 else the input value will be used For more details r...

Страница 235: ...tapping t1 C 0 Temperature at downstream tapping Temperature at downstream tapping t2 C 0 Downstream Temperature Fully recovered downstream temperature t3 C 0 Upstream density Density at upstream tapp...

Страница 236: ...then an isentropic expansion is applied 15 273 15 273 1 1 3 3 1 p p t t Else the value of input Temperature exponent is used 15 273 15 273 1 3 3 1 TE K p p t t Where t1 Upstream temperature C t3 Down...

Страница 237: ...ol 0 1 0 Metering reference temperature Temperature used for calculating the compressibility the density and the real relative density values 1 0 C 2 15 C 1 Calorific value reference temperature Tempe...

Страница 238: ...589 Function inputs Remark EU Range Default Name Optional tag name tag description and tag group Composition Standard composition as defined in section Standard gas composition mol mol 0 1 0 Reference...

Страница 239: ...s of temperature and pressure MJ kg 0 Superior calorific value Real superior calorific value on mole basis at the reference conditions of temperature and pressure MJ kmol 0 Inferior calorific value Re...

Страница 240: ...are as follows Methane 0 5 1 0 Nitrogen 0 0 0 3 Ethane 0 0 0 15 Carbon dioxide 0 0 0 15 All others 0 0 0 05 Compliance International standard Natural Gas Calculation of calorific values density relat...

Страница 241: ...0 C 5 20 C 20 C 6 25 C 20 C 1 Molar mass table method 1 Calculate Calculates the molar mass from the atomic masses as defined in the note of Table 1 of the standard 2 Table Uses the values from Table...

Страница 242: ...is should be the ICV corresponding to the current reference conditions Note the input values have to correspond with the conditions as defined by input Reference conditions This array should be exactl...

Страница 243: ...ations Calculations are performed in accordance with the standard with the addition of the user definable components The properties of the user definable components are specified by the corresponding...

Страница 244: ...output of the related input function INPSTS Input value Value of the input signal Must be linked to the scaled value output of the related input function INPVAL Fallback type Determines what to do wh...

Страница 245: ...0 Failure INPSTS Input values Array if input values INPVAL Fallback type Determines what to do when input fails 1 Use last good value 2 Use fallback value 3 Use keypad value 4 Use measured FBTYP Fallb...

Страница 246: ...o latch the input value Input value Value to be latched May be a constant a formula or a reference to another cell or tag Reset trigger Optional Trigger to resets the latched value to the reset value...

Страница 247: ...e or false True Warning behavior Determines the warning behavior when the lo and hi limit are violated 1 No warnings just alarms 2 Warn on lo limit 3 Warn on hi limit 4 Warn on lo and hi limit 1 Funct...

Страница 248: ...ts Function inputs and outputs Function inputs Remark EU Range Default Name Optional tag name tag description and tag group Pressure Flowing pressure bar a 1 150 1 01325 Temperature Flowing temperatur...

Страница 249: ...al water fraction at flowing conditions mole 0 Relative humidity At flow conditions 0 Range 0 All input values are within the Normal Range 1 One or more input values are outside the Normal Range 0 Cal...

Страница 250: ...at of air at base conditions so the real specific gravity or real relative density Compliance AGA Par Research Project NX 19 Manual for the Determination of the Supercompressibility Factors for Natura...

Страница 251: ...to section Calculations for ist definition 1 Range 0 All input values are within the Normal Range 1 One or more input values are outside the Normal Range 0 Calculations The AGA NX 19 standard specifie...

Страница 252: ...t base conditions so the real specific gravity or real relative density Compliance AGA Par Research Project NX 19 Manual for the Determination of the Supercompressibility Factors for Natural Gas 1962...

Страница 253: ...correction Determines if the AGA NX 19 mod AGA NX 19 mod BR KORR 3H is used instead of the AGA NX 19 1962 standard calculation 0 Disabled 1 Enabled 1 Function outputs Remark EU Fallback Status 0 Norm...

Страница 254: ...to the corresponding output from a TotalizerRate or TotalizerDelta function Negative values will be ignored Same as linked cell Period type Type of period 1 Second 2 Minute 3 Hour 4 Day 5 Week 6 Month...

Страница 255: ...TYP Period count Number of periods e g 5 minutes 8 hours CNT 1 1e11 Period start Absolute start date and time of the period This will be used as the reference point to calculate the next period rollov...

Страница 256: ...count Number of periods e g 5 minutes 8 hours CNT 1 1e11 Period start Absolute start date and time of the period This will be used as the reference point to calculate the next period rollover from Th...

Страница 257: ...ount Number of periods e g 5 minutes 8 hours CNT 1 1e11 Period start Absolute start date and time of the period This will be used as the reference point to calculate the next period rollover from The...

Страница 258: ...ame as linked cell 0 1e11 Enabled 0 Disabled 1 Enabled EN Period type Type of period 1 Second 2 Minute 3 Hour 4 Day 5 Week 6 Month 7 Quarter 8 Year TYP Period count Number of periods e g 5 minutes 8 h...

Страница 259: ...eriod Same as input Increment CUR 0 Previous total Accumulated total for the previous period Same as input Increment PRV 0 Rollover flag Flag indicating a rollover to 0 0 Off 1 On Note stays On for on...

Страница 260: ...abled EN Period type Type of period 1 Second 2 Minute 3 Hour 4 Day 5 Week 6 Month 7 Quarter 8 Year TYP Period count Number of periods e g 5 minutes 8 hours CNT 1 1e11 Period start Absolute start date...

Страница 261: ...r of periods e g 5 minutes 8 hours CNT 1 1e11 Period start Absolute start date and time of the period This will be used as the reference point to calculate the next period rollover from The value may...

Страница 262: ...between auto and manual mode and vice versa The actual process value is copied into the required setpoint value while manual mode is enabled PV tracking When reverting to auto mode the process will s...

Страница 263: ...U s 0 Upwards OP slew rate The control output will not be allowed to increase faster than this limit s 0 Downwards OP slew rate The control output will not be allowed to decrease faster than this limi...

Страница 264: ...ds to be connected to output Tracking mode of the secondary Slave PID function This input tells this function that the secondary Slave PID function is not using its Cascade input but its Manual output...

Страница 265: ...e PID function is not using the Cascade input but the Manual output or Setpoint value instead This allows the primary PID function to track the secondary process or setpoint value enabling a bumpless...

Страница 266: ...control output uMAX high limit for control output t calculation cycle time s KP Proportional gain factor KI Integral gain factor KD Derivation gain factor P Proportional part of current cycle ICUR Int...

Страница 267: ...Calculate the Proportional part P KP eCUR Calculate the Integral part ICUR IPRV Ki t eCUR uPRV vPRV High scale value Low scale value 100 Note the latter part is required to avoid anti windup Calculat...

Страница 268: ...IF Cascade mode Enabled SPREQ SPCUR Manual output tracking IF Manual mode Disabled Manual output uCUR Tracking mode and value Outputs Tracking mode and Tracking value are set as follows Tracking mode...

Страница 269: ...olute difference between two consecutive values divided by the calculation cycle time in seconds is more than the limit fxSarasota_C The function calculates the density from a frequency input signal p...

Страница 270: ...al 1 Input argument out of range 2 Calculation error STS FIOOR CALC Corrected density Density corrected for temperature and pressure lbm ft3 CORDENS 0 Calculations The corrected density C is calculate...

Страница 271: ...tion 0 Disabled 1 Enabled 1 Reference temperature Used when temperature correction is enabled C 0 100 20 Reference pressure Used when pressure correction is enabled bar g 0 100 0 d0 Constant from cali...

Страница 272: ...icate s K Obtained from the calibration certificate d0 Obtained from the calibration certificate pCOE F Obtained from the calibration certificate s bar tCOE F Obtained from the calibration certificate...

Страница 273: ...ate and time that the most recent change has occurred fxSetOnCondition The fxSetOnCondition function sets a tag or cell to a specific value whenever a condition is true It is a generic function that i...

Страница 274: ...condition that needs to be valid while the event occurs If the condition is not valid then teh target will not be set to the value TRUE Function outputs Remark EU SW tag Alarm Fallback Date and time...

Страница 275: ...nction inputs Remark EU SW tag Range Default Module Number of the Flow X M module 1 local module 1 8 module 1 through 8 1 8 1 Index The index number of the target tag to be set Value Value to be assig...

Страница 276: ...the target tag to be set Value Value to be assigned May be a constant a formula or a reference to another cell or tag Event Boolean expression When the expression outcome changes from FALSE to TRUE or...

Страница 277: ...ity factor of 0 1 provided the inputs lie in the following range Pressure 0 1740 psi a Temperature 17 143 F Gross heating value 509 1288 Btu ft3 Relative density 0 55 0 90 Carbon dioxide 0 00 0 30 mol...

Страница 278: ...e or more components within the Extended Range but none of the components outside the Extended rang outputs values have higher uncertainty 2 Out of Range One or more components outside the Extended Ra...

Страница 279: ...1 provided the inputs lie in the following range Pressure 0 120 bar a Temperature 265 335 K Gross heating value 19 48 MJ m3 Relative density 0 55 0 90 Carbon dioxide 0 00 0 30 mol mol Nitrogen 0 00 0...

Страница 280: ...he Extended Range but none of the components outside the Extended rang outputs values have higher uncertainty 2 Out of Range One or more components outside the Extended Range using the AGA8 calculatio...

Страница 281: ...in Hz s 0 1e6 0 Line temperature Used when temperature correction is enabled F 459 67 1000 20 Temperature correction 0 Disabled 1 Enabled TEMPCOR 1 VOS correction 0 Disabled 1 Enabled VOSCOR 1 Refere...

Страница 282: ...ty corrected for temperature Density corrected for temperature lbm ft3 TCORDENS 0 Uncorrected density Uncorrected indicated density lbm ft3 UNCDENS 0 Calculations Density calculations are performed in...

Страница 283: ...om the calibration certificate K4 Obtained from the calibration certificate Kc Calibration gas constant from the calibration certificate G G value Equals either input G value or the ratio of inputs Sp...

Страница 284: ...ection is enabled C 273 500 20 Temperature correction 0 Disabled 1 Enabled TEMPCOR 1 VOS correction 0 Disabled 1 Enabled VOSCOR 1 Reference temperature Used when temperature correction is enabled C RE...

Страница 285: ...g m3 CORDENS 0 Density corrected for temperature Density corrected for temperature kg m3 TCORDENS 0 Uncorrected density Uncorrected indicated density kg m3 UNCDENS 0 Calculations The uncorrected densi...

Страница 286: ...om the calibration certificate K4 Obtained from the calibration certificate Kc Calibration gas constant from the calibration certificate G G value Equals either input G value or the ratio of inputs Sp...

Страница 287: ...000 divided by the frequency in Hz s 0 1e6 0 Line temperature Used when temperature correction is enabled F 459 67 100 0 Line pressure Used when pressure correction is enabled psig 0 3000 0 Temperatur...

Страница 288: ...Density corrected for temperature and pressure lbm ft3 PTCORDENS 0 Uncorrected density lbm ft3 UNCDENS 0 Calculations Density calculations are performed in g cc and m s while the function inputs and o...

Страница 289: ...ssure psig pR The reference pressure psig When VOS Correction is set to Based on Kr and Kj Constants the following correction for velocity of sound is applied 3 j pt r pt VOS K K When VOS Correction i...

Страница 290: ...c time In microseconds Equals 1000 divided by the frequency in Hz s 0 1e6 0 Line temperature Used when temperature correction is enabled C 273 15 500 0 Line pressure Used when pressure correction is e...

Страница 291: ...n outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation error STS FIOOR CALCERR Corrected density Density corrected for temperature pressure and VOS provi...

Страница 292: ...mperature kg m3 K20A Obtained from the calibration certificate K20B Obtained from the calibration certificate K21A Obtained from the calibration certificate K21B Obtained from the calibration certific...

Страница 293: ...4 293 Flow X General functions fxSolartron_Liquid_M Where VOS The density corrected for temperature kg m3 Kr Constant obtained from Solartron Kj Constant obtained from Solartron kg m3 VC Calibration...

Страница 294: ...tificate K0 10000 0 11 952 K2 Constant from calibration certificate K2 0 1 4 719593e 5 Function outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Input argument out of range 2 Calculation erro...

Страница 295: ...fied value is considered at the initial value Unit Defines an engineering unit enumeration date time or a special data type e g xt_bool xu_kg_s or xe_period Write level Applies for writeable tags only...

Страница 296: ...y be left empty in which case no maximum check is applied Function outputs Remark EU SW tag Alarm Fallback Value Depends on setting Mode Mode This Cell Cell shows the value or the result of the formul...

Страница 297: ...time however will be a multifold of the flow computer cycle time When the limit value does not match an exact number of cycles then the actual limit value will be rounded upwards to match the next nu...

Страница 298: ...gnored so the cumulative total will not decrease Defined by Input unit 0 1e11 Enabled Dictates whether the flow accumulation is enabled or not When disabled the cumulative total will not be updated an...

Страница 299: ...3 copies were different and the total was reset to 0 0 Off 1 On Note stays On for one cycle only FTOTERR Unit conversion The function will automatically apply the required conversion based on the unit...

Страница 300: ...tal will not be updated and the increment will be set to 0 0 Disabled 1 Enabled EN Input unit Unit of input Flow rate Output unit Unit to be used for total and increment Refer to the next section Unit...

Страница 301: ...red conversion based on the unit of the flow rate input value Input unit and the selected Output unit for the flow quantity E g when flow rate input is in kg hr the selected unit is tonne then the fol...

Страница 302: ...Used when temperature correction is enabled F REFTEMP 0 200 60 Reference pressure Used when pressure correction is enabled psig REFPRES 0 1500 0 K0 Constant K0 from calibration certificate K0 1e9 1e9...

Страница 303: ...corrected density t is calculated by R i T i T T R i P i P P i t t t K K K p p K K K 2 3 2 1 2 3 2 1 Where t The density corrected for temperature and pressure lbm ft 3 KP1 Obtained from the calibrati...

Страница 304: ...hen temperature correction is enabled C REFTEMP 0 100 20 Reference pressure Used when pressure correction is enabled bar g REFPRES 0 100 0 K0 Constant K0 from calibration certificate K0 1e9 1e9 K1 Con...

Страница 305: ...re corrected density t is calculated by R i T i T T R i P i P P i t t t K K K p p K K K 2 3 2 1 2 3 2 1 Where t The density corrected for temperature and pressure kg m3 KP1 Obtained from the calibrati...

Страница 306: ...the number of times the flag has been raised Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Empty Value The value that needs to be checked for upd...

Страница 307: ...y of the fluid at metering conditions lbm ft3 0 200 0 Dynamic Viscosity Dynamic viscosity of the fluid lbm ft s 0 10 6 9e 6 Isentropic Exponent Also referred to as kappa For an ideal gas this coeffici...

Страница 308: ...This parameter specifies if and how the temperature should be corrected from downstream to upstream conditions or vice versa 1 1 Isentropic expansion using 1 as the temperature referral exponent 2 Con...

Страница 309: ...pe diameter ratio at upstream temperature Input Cone diameter Input Pipe diameter Cone diameter At the upstream temperature inches Input Cone diameter Pipe diameter At the upstream temperature inches...

Страница 310: ...s the expansion factor should not get below 0 84 0 Expansion factor is in valid range 1 Expansion factor is out of valid range 0 Calculations The flow calculation is as specified in the McCrometer ref...

Страница 311: ...s C 240 1000 0 Density Down or upstream density of the fluid at metering conditions kg m3 0 2000 0 Dynamic Viscosity Dynamic viscosity of the fluid Pa s 0 1 0 01115 Isentropic Exponent Also referred t...

Страница 312: ...t3 Since temperature measurement is usually downstream of the flow device this is the most common setting 2 Temperature Correction This parameter specifies if and how the temperature should be correct...

Страница 313: ...e meter is used The resulting correction curve can be implemented through function fxInterolationCurve Input Discharge coefficient needs to be linked to the corresponding output of this additional fun...

Страница 314: ...m3 Input Density Reynolds number 0 Discharge coefficient Same as input value Expansion Factor 0 Velocity Pipeline velocity m s 0 Expansion Factor Range The McCrometer reference document states that fo...

Страница 315: ...cycle The average is either the arithmetic mean or the Root of the Mean of the Squares RMS Where the latter is meant for a differential pressure signal of a primary flow device e g an orifice plate Th...

Страница 316: ...ilter 15 Slowest filter FILSP 0 Function outputs Remark EU SW tag Alarm Fallback Status 0 Normal 1 Function Input argument out of range STS FIOOR Percentage value The actual and filtered output value...

Страница 317: ...through 8 1 1 25 Volts 2 12 Volts Channels 9 through 16 1 3 75 Volts 2 12 Volts THRESHOLD 1 Function outputs Remark SW tag Alarm EU Status 0 Normal 1 Input argument out of range STS FIOOR Signal Stat...

Страница 318: ...ctivated The value 0 disables the delay function If the control signal becomes 0 before the time has elapsed then the output signal will not be activated ms DELAY 0 0 Minimum activation time Minimum p...

Страница 319: ...Fallback Status 0 Normal 1 Input argument out of range or conflict STS FIOOR 0 fxFrequencyOutput This function provides a programmable output frequency on one of the digital pins The frequency as well...

Страница 320: ...Hz Hz 0 01 10000 Duty cycle Duty cycle 0 100 Enabled Enables 0 or disables 0 the output signal Phase shift Phase shift between dual pulse channel A and B expressed as the ratio of the time delay betw...

Страница 321: ...ith 2 detectors at one end of the prover A and B and 2 at the other end C and D there are 4 possible detector combinations A C A D B C and B D resulting in four available prover volumes By defining 4...

Страница 322: ...ion of the Start digital input sec STRTMINDLY 0 1e9 0 Start maximum delay time After the Reset command has been given the function will wait for no longer than this delay time before the Start digital...

Страница 323: ...put argument out of range or conflict STS FIOOR Interpolated pulse count Equals Whole pulse count Time A Time B According to API requirements the interpolated pulse count should be used when less than...

Страница 324: ...w computer takes the pulse output from the flow computer that processes the meter on prove to perform prove measurements including double chronometry if required The prover output signal is generated...

Страница 325: ...utomatic reset function RSTLIM 0 1e99 0 Bad pulse reset command When the value changes the bad pulse count and alarms are reset Can be used reset the bad pulses manually or automatically e g at a ever...

Страница 326: ...increment Number of bad pulses within the last calculation cycle ERRINC Error pulse rate Number of bad pulses within the last calculation cycle divided by the last calculation cycle time in seconds H...

Страница 327: ...pulse input of the specified module is configured by function fxPulseInput Function inputs Remark EU SW tag Range Default Name Optional tag name tag description and tag group Empty Module Unused set t...

Страница 328: ...of output pulses E g a value of 100 means that 1 pulse is generated whenever 100 increment units have been accumulated SIGFCT 0 1e99 1 Pulse width Time that each output pulse remains active high in m...

Страница 329: ...STS FIOOR fxPT100Input Each flow module provides 2 inputs for Pt 100 sensors A Pt 100 sensor is a Platinum Resistance Thermometer PRT element with a resistance of 100 at 0 C Pt is the symbol for plati...

Страница 330: ...a resistance value Ohm into a temperature value C according to the Pt 100 conversion tables A Pt 100 sensor is a Platinum Resistance Thermometer PRT element with a resistance of 100 at 0 C Pt is the s...

Страница 331: ...Flow X Function Reference 5 331 Flow X IO Functions fxPT100Table...

Страница 332: ...the reading is considered to be abnormal Following an abnormal reading there must be 3 consecutive readings within the limit before the time period value is considered normal again When no 3 consecut...

Страница 333: ...oot ft2 m2 xu_ft2 9 290304 E 02 Exact Dynamic Viscosity pascal second Pa s xu_Pa s poise poise Pa s xu_poise 1 0 E 01 Exact centipoise cP Pa s xu_cP 1 0 E 03 Exact kilogram force second per square met...

Страница 334: ...06 Exact Energy per Mole joules per mole J mol kilojoules per mole kJ mol J mol 1 0 E 03 Exact megajoules per mole MJ mol J mol 1 0 E 06 Exact kilojoules per kilomole kJ kmol J mol 1 Exact megajoules...

Страница 335: ...gy per Volume joules per cubic meter J m3 kilojoules per cubic meter kJ m3 J m3 1 0 E 03 Exact megajoules per cubic meter MJ m3 J m3 1 0 E 06 Exact British thermal unit per cubic foot Btu ft3 J m3 1 0...

Страница 336: ...3 n 4 1868 E 03 Exact Factor scaling value Decimal percent Decimal 1 0 E 02 Exact parts per million ppm Decimal 1 0 E 06 Exact Force Newton N kilogram force kgf N 9 80665 Exact pound force lbf N 4 448...

Страница 337: ...C 1 0 E 02 Exact centimeter per degree Fahrenheit cm F m C 1 8 E 02 Exact millimeter per degree Celsius mm C m C 1 0 E 03 Exact millimeter per degree Fahrenheit mm F m C 1 8 E 03 Exact feet per degre...

Страница 338: ...3 Exact pounds mass per pulse lbm puls e kg pulse 4 535924 E 01 Exact Mass per Time kilogram per second kg s kilogram per hour kg hr kg s 1 0 3600 Exact ton metric per hour tonne hr kg s 1 0 3600 E 03...

Страница 339: ...SG 60 F kg m3 H2O 60 F 2 Exact 3 Relative Density at 60 degrees Fahrenheit 1 RD 60 F kg m3 H2O 60 F 2 Exact 3 1 This conversion only applies when conversion is to from the Mass per Volume value at 60...

Страница 340: ...ted on the periodic chart the pound mol lbmol sometimes lb mol lbm mol or lbm mole is defined lbmol mol 4 5359237 E 01 Exact kilopound mole klbmol mol 4 5359237 E 02 Exact Mole per Mole mole fraction...

Страница 341: ...2387 415 Exact millimeter of water convential mmH2O Pa 9 80665 Exact millimeter of water 60 F mmH2O 60 F Pa 248 84 25 4 Approximate inch of mercury convential inHg con Pa 3386 38864 Exact inch of merc...

Страница 342: ...ute inH2Oa 60 F Pa a 248 84 Approximate inch of water 68 F absolute inH2Oa 68 F Pa a 248 64107 Approximate Pressure gauge pascal gauge Pa g kilo pascal gauge kPa g Pa g 1 0 E 03 Exact pound force per...

Страница 343: ...kg 1 0 E 06 Exact pounds mass avoirdupois per square inch per kilogram psi kg Pa kg 6894 76 Exact bar per per kilogram bar kg Pa kg 1 0 E 05 Exact Pulses per Mass pulses per kilogram pulses k g pulse...

Страница 344: ...y D s 8 64 E 04 Exact Velocity meters per second m s kilometers per second km s m s 1 0 E 03 Exact kilometers per hour km hr m s 1 3600 E 03 Exact foot per second ft s m s 3 048 E 01 Exact Volume cubi...

Страница 345: ...e fraction vol vol volume percentage vol vol vol 1 0 E 02 Exact Volume per Pulse cubic meters per pulse m3 puls e cubic centimeters per pulse cm3 puls e m3 puls e 1 0 E 06 Exact litres per pulse l pul...

Страница 346: ...er per day sm3 d sm3 s 1 86400 Exact kilo standard cubic meter per second ksm3 s sm3 s 1 0 E 03 Exact kilo standard cubic meter per hour ksm3 hr sm3 s 1 3600 E 03 Exact kilo standard cubic meter per d...

Страница 347: ...formed at the combustion stays in the gaseous state From ISO6976 Gross Heating Value Inferior Calorific Value Heating value when assuming that water formed at the combustion has totally condensed to...

Страница 348: ...76 Used in GPA2172 Used in AGA5 Used in GERG 2008 Used in MR113 Methane Nitrogen Carbon Dioxide Ethane Propane Water 2 3 Hydrogen Sulphide Hydrogen Carbon Monoxide Oxygen i Butane n Butane i Pentane n...

Страница 349: ...Flow X Function Reference 6 349 This page is intentionally left blank for user notes...

Страница 350: ...6 350 Flow X Function Reference This page is intentionally left blank for user notes...

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