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Setback weirdness goes away above 10C external air temp.

11 Jul 14:26
@DamonHD DamonHD
V0.1.0
e7b6854
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Setback weirdness goes away above 10C external air temp.

Show HG TRV/HP model computations.
Hardwired model, electricity demand normal / setback: 769W / 815W
Parameterised model, all default parameters, electricity demand normal / setback: 769W / 815W
Parameterised model, fixes applied for doors and CoP temperature, electricity demand normal / setback: 812W / 895W
Parameterised model, fixes applied and AABB lower-loss arrangement, electricity demand normal / setback: 812W / 860W

Parameterised model, fixes applied for doors and CoP temperature, external air temperature varied...
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-13.0], electricity demand normal / setback: 1386W / 1593W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-12.0], electricity demand normal / setback: 1319W / 1510W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-11.0], electricity demand normal / setback: 1255W / 1430W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-10.0], electricity demand normal / setback: 1192W / 1354W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-9.0], electricity demand normal / setback: 1132W / 1280W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-8.0], electricity demand normal / setback: 1074W / 1210W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-7.0], electricity demand normal / setback: 1018W / 1142W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-6.0], electricity demand normal / setback: 964W / 1077W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-5.0], electricity demand normal / setback: 912W / 1014W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-4.0], electricity demand normal / setback: 861W / 953W
*** original external air temperature, ie -3.0C
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-3.0], electricity demand normal / setback: 812W / 895W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-2.0], electricity demand normal / setback: 764W / 839W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-1.0], electricity demand normal / setback: 718W / 785W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=0.0], electricity demand normal / setback: 674W / 733W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=1.0], electricity demand normal / setback: 631W / 682W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=2.0], electricity demand normal / setback: 589W / 633W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=3.0], electricity demand normal / setback: 549W / 586W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=4.0], electricity demand normal / setback: 509W / 541W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=5.0], electricity demand normal / setback: 471W / 497W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=6.0], electricity demand normal / setback: 434W / 455W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=7.0], electricity demand normal / setback: 399W / 414W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=8.0], electricity demand normal / setback: 364W / 374W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=9.0], electricity demand normal / setback: 330W / 336W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=10.0], electricity demand normal / setback: 298W / 298W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=11.0], electricity demand normal / setback: 266W / 262W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=12.0], electricity demand normal / setback: 235W / 228W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=13.0], electricity demand normal / setback: 206W / 194W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=14.0], electricity demand normal / setback: 177W / 161W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=15.0], electricity demand normal / setback: 149W / 130W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=16.0], electricity demand normal / setback: 122W / 99W
ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=17.0], electricity demand normal / setback: 96W / 70W

Assets 2
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Adjusting external air temperature does not stop strange behavior.

11 Jul 13:47
@DamonHD DamonHD
V0.0.2
55b7407
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Adjusting external air temperature does not stop strange behavior. 
Show HG TRV/HP model computations.
Hardwired model, electricity demand normal / setback: 769W / 815W
Parameterised model, all default parameters, electricity demand normal / setback: 769W / 815W
Parameterised model, fixes applied for doors and CoP temperature, electricity demand normal / setback: 812W / 895W
Parameterised model, fixes applied and AABB lower-loss arrangement, electricity demand normal / setback: 812W / 860W

Parameterised model, fixes applied for doors and CoP temperature, external air temperature varied...
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-13.0], electricity demand normal / setback: 978W / 1103W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-12.0], electricity demand normal / setback: 959W / 1078W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-11.0], electricity demand normal / setback: 941W / 1055W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-10.0], electricity demand normal / setback: 923W / 1032W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-9.0], electricity demand normal / setback: 906W / 1011W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-8.0], electricity demand normal / setback: 889W / 990W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-7.0], electricity demand normal / setback: 873W / 970W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-6.0], electricity demand normal / setback: 857W / 950W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-5.0], electricity demand normal / setback: 841W / 931W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-4.0], electricity demand normal / setback: 826W / 913W
 *** original external air temperature, ie -3.0C
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-3.0], electricity demand normal / setback: 812W / 895W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-2.0], electricity demand normal / setback: 798W / 878W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=-1.0], electricity demand normal / setback: 784W / 861W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=0.0], electricity demand normal / setback: 770W / 845W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=1.0], electricity demand normal / setback: 757W / 830W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=2.0], electricity demand normal / setback: 744W / 814W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=3.0], electricity demand normal / setback: 731W / 800W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=4.0], electricity demand normal / setback: 719W / 785W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=5.0], electricity demand normal / setback: 707W / 771W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=6.0], electricity demand normal / setback: 695W / 758W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=7.0], electricity demand normal / setback: 683W / 745W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=8.0], electricity demand normal / setback: 672W / 732W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=9.0], electricity demand normal / setback: 661W / 719W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=10.0], electricity demand normal / setback: 649W / 707W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=11.0], electricity demand normal / setback: 638W / 695W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=12.0], electricity demand normal / setback: 628W / 683W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=13.0], electricity demand normal / setback: 617W / 671W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=14.0], electricity demand normal / setback: 606W / 660W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=15.0], electricity demand normal / setback: 596W / 649W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=16.0], electricity demand normal / setback: 585W / 638W
  ModelParameters[doorsPerInternalWall=1.0, correctCoPForFlowVsMW=true, roomsAlternatingABAB=true, externalAirTemperatureC=17.0], electricity demand normal / setback: 574W / 627W
Assets 2
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V0.0.1

29 Jun 09:52
@DamonHD DamonHD
V0.0.1
9c27d82
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V0.0.1 Pre-release
Pre-release

As of 2023-06-28.

The model has been sufficiently parameterised to fix both discrepancies between the text and the calculations. (Doors per internal wall, and using mid-radiator (MW) rather than flow temperatures to estimate heat-pump CoP.) The results do change, consuming more energy than given in the text. But in each case the B rooms being set back cause more electricity demand than without the setback, as claimed in the text.

Assets 2
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