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MULTICAL® 803
94
Kamstrup A/S · Technical description · 5512-2360_A1_
GB
_02.2019
7
Calculator functions
7.1
Application types and energy calculations
MULTICAL® 803 operates with 20 different energy formulas, E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13,
E14, E15, E16, A1, A2,
dE(ΔE)
and cE, which are all calculated in parallel at every integration no matter how the
calculator is configured. E8, E9, E10 and E11 are used as a basis for the calculation of average temperatures of inlet
and outlet, whereas E1 and E3 are used for heat and cooling measurement, respectively. E4 to E7 and E12 to E16 are
used in a number of energy applications that are shown below. A1 and A2 are used as a basis for discount/addition
based on the outlet temperature (see paragraph 7.1.6).
Formula
∆Θ
Example of application
Included in application
no.
Register type
E1=V1(t1-t2)k
t1/t2
t1 > t2
Heat energy (V1 in inlet or outlet)
1+2+3+4+5+6+8+10
Legal Display/Data/Log
E2=V2(t1-t2)k
t2
t1 > t2
Heat energy (V2 in return)
2+7
Display/Data/Log
E3=V1(t2-t1)k
t1/t2
t2 > t1
Cooling energy (V1 in inlet or outlet) 1+11
Legal Display/Data/Log
E4=V1(t1-t3)k
t1
t1 > t3
Inlet energy
7+9+11
Display/Data/Log
E5=V2(t2-t3)k
t2
t2 > t3
Outlet energy or tap from outlet
5+7+9
Display/Data/Log
E6=V2(t3-t4)k
t3
t3 > t4
Tap water energy, separate
3+6
Display/Data/Log
E7=V2(t1-t3)k
t3
t1 > t3
Outlet energy or tap from inlet
4+8
Display/Data/Log
E8=V1
[
m
3
]
x t1
-
Average temperature in inlet
See paragraph
7.1.5
Display/Data/Log
E9=V1
[
m
3
]
x t2
-
Average temperature in outlet
Display/Data/Log
E10=V1
[
m
3
]
x t3
-
Average t3 in V1
Display/Data/Log
E11=V2
[
m
3
]
x t3
-
Average t3 in V2
Display/Data/Log
E12=V2(t2-t1)k
t2
t2 > t1
Cooling energy (V2 in outlet)
32
Display/Data/Log
E13=V1(t3-t4)k
t1/t2
t3 > t4
Heat energy serial circuit
30
Display/Data/Log
E14=V2(t3-t4)k
t3/t4
t3 > t4
Heat energy parallel circuit
31
Display/Data/Log
E15=V1(t4-t3)k
t1/t2
t4 > t3
Cooling energy serial circuit
30
Display/Data/Log
E16=V2(t4-t3)k
t3/t4
t4 > t3
Cooling energy parallel circuit
31
Display/Data/Log
Additional registers
A1
t5 > t2
Heat energy at a discount
See paragraph
7.1.6
Display/Data/Log
A2
t2 > t5
Heat energy with an addition
Display/Data/Log
dE(ΔE)=E4
-E5
-
Differential energy
7
-
cE=E5-E4
-
Control of differential energy
7
-