Eurotherm 6100, Руководство пользователя

Страница: 130 / 397

100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
Page 114 HA029324
Issue 11 Oct 14
4.3.11 FUNCTION (Cont.)
SATURATED STEAM HEAT CONSUMED (Cont.)
Function
Saturated Steam Heat Consumed
Inlet Flow
Use
Inlet Pressure
Inlet Dryness
Return Temperature
Channel 1
23.8
Maths Number
2) Math 2
Value
987.6543
Pressure
Channel 2
Units
Apply Discard
%
Units
Units
Channel 3
Function
Group MKT
Source
Number of samples
Sample interval
0.125
Heat of Activation 83.144
Units
Units
1) Group 1
3
Maths Number
1) Math 1
Value
0.0000 Units
kJ/mole
s
Apply Discard
Figure 4.3.11l Typical Saturated Steam Heat Flow confi guration page
PARAMETERS
Inlet Flow
Select ‘Constant’ or the number of the channel supplying the measured fl ow rate. If ‘Con-
stant’ selected, a further ‘box’ allows the value for the constant to be entered.
Use Allows the user to select Temperature (˚C) or Pressure (MPa) for the calculation.
Inlet Temperature Appears only if Use = Temperature. Select ‘Constant’ or the number of the channel supply-
ing the steam temperature. If ‘Constant’ is selected, a further ‘box’ allows a value for the
constant to be entered.
Inlet Pressure Appears only if Use = Pressure. Select ‘Constant’ or the number of the channel supplying
the steam pressure. If ‘Constant’ is selected, a further ‘box’ allows a value for the constant
to be entered.
Inlet Dryness Enter a value between 0 and 100 to represent the dryness of the steam. 0 = no vapour; 100
= no liquid.
Return Temperature Select ‘Constant’ or the number of the channel supplying the condensate temperature If
‘Constant’ is selected, a further ‘box’ allows a value for the constant to be entered.
*Note: See Saturated Steam Mass Flow , above, for details of pressure unit conversion
GROUP MKT
Similar in operation to MKT , described above, except that the MKT is derived from a specifi ed group of
points rather than a single point.
For each sample period, the maximum and minimum values reached by any point(s) within the specifi ed
group are saved,and used as inputs to the Equation.
Figure 4.3.11m Group MKT confi guration page