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asked 2024-05-27 10:12:47 -0600

Yagnik's avatar

Heating setpoint decreased by 2°C but the overall energy requirenment increses

Hello, I have concern about getting the cooling and humidification load increased drastically for the model by decreasing heating setpoint by 2°C.

I have just changed the class list - Shcedule:Compact from

Schedule:Compact, Htg-SetP-Sch, !- Name Temperature, !- Schedule Type Limits Name Through: 12/31, !- Field 1 For: Weekends HoliDay, !- Field 2 Until: 7:00, !- Field 3 16, !- Field 4 Until: 14:00, !- Field 5 16, !- Field 6 Until: 24:00, !- Field 7 16, !- Field 8 For: SummerDesignDay, !- Field 9 Until: 24:00, !- Field 10 16, !- Field 11 For: WinterDesignDay, !- Field 12 Until: 24:00, !- Field 13 21, !- Field 14 For: AllOtherDays, !- Field 15 Until: 5:00, !- Field 16 16, !- Field 17 Until: 6:00, !- Field 18 20, !- Field 19 Until: 20:00, !- Field 20 22, !- Field 21 Until: 24:00, !- Field 22 16; !- Field 23

to

Schedule:Compact, Htg-SetP-Sch, !- Name Temperature, !- Schedule Type Limits Name Through: 12/31, !- Field 1 For: Weekends HoliDay, !- Field 2 Until: 7:00, !- Field 3 14, !- Field 4 Until: 14:00, !- Field 5 14, !- Field 6 Until: 24:00, !- Field 7 14, !- Field 8 For: SummerDesignDay, !- Field 9 Until: 24:00, !- Field 10 14, !- Field 11 For: WinterDesignDay, !- Field 12 Until: 24:00, !- Field 13 19, !- Field 14 For: AllOtherDays, !- Field 15 Until: 5:00, !- Field 16 14, !- Field 17 Until: 6:00, !- Field 18 18, !- Field 19 Until: 20:00, !- Field 20 20, !- Field 21 Until: 24:00, !- Field 22 14; !- Field 23

but instead of decresing energy demand it increased because of the sharp rise in cooling and humidifcation demand, even though rest of the setpoints have not changed.

Why is the increased cooling load ?

KR, Yagnik

click to hide/show revision 2
None

updated 2024-05-27 11:54:40 -0600

Aaron Boranian's avatar

Heating setpoint decreased by 2°C but the overall energy requirenment increses

Hello, I have concern about getting the cooling and humidification load increased drastically for the model by decreasing heating setpoint by 2°C.

I have just changed the class list - Shcedule:Compact from 

Schedule:Compact,
   Htg-SetP-Sch, !- Name
   Temperature, !- Schedule Type Limits Name
   Through: 12/31, !- Field 1
   For: Weekends HoliDay, !- Field 2
   Until: 7:00, !- Field 3
   16, !- Field 4
   Until: 14:00, !- Field 5
   16, !- Field 6
   Until: 24:00, !- Field 7
   16, !- Field 8
   For: SummerDesignDay, !- Field 9
   Until: 24:00, !- Field 10
   16, !- Field 11
   For: WinterDesignDay, !- Field 12
   Until: 24:00, !- Field 13
   21, !- Field 14
   For: AllOtherDays, !- Field 15
   Until: 5:00, !- Field 16
   16, !- Field 17
   Until: 6:00, !- Field 18
   20, !- Field 19
   Until: 20:00, !- Field 20
   22, !- Field 21
   Until: 24:00, !- Field 22
   16; !- Field 23
23

to 

Schedule:Compact,
   Htg-SetP-Sch, !- Name
   Temperature, !- Schedule Type Limits Name
   Through: 12/31, !- Field 1
   For: Weekends HoliDay, !- Field 2
   Until: 7:00, !- Field 3
   14, !- Field 4
   Until: 14:00, !- Field 5
   14, !- Field 6
   Until: 24:00, !- Field 7
   14, !- Field 8
   For: SummerDesignDay, !- Field 9
   Until: 24:00, !- Field 10
   14, !- Field 11
   For: WinterDesignDay, !- Field 12
   Until: 24:00, !- Field 13
   19, !- Field 14
   For: AllOtherDays, !- Field 15
   Until: 5:00, !- Field 16
   14, !- Field 17
   Until: 6:00, !- Field 18
   18, !- Field 19
   Until: 20:00, !- Field 20
   20, !- Field 21
   Until: 24:00, !- Field 22
   14; !- Field 23
23

but instead of decresing decreasing energy demand it increased because of the sharp rise in cooling and humidifcation humidification demand, even though rest of the setpoints have not changed.

Why is the increased cooling load ?

KR, Yagnik

click to hide/show revision 3
retagged

updated 2024-05-27 11:56:57 -0600

Aaron Boranian's avatar

Heating setpoint decreased by 2°C but the overall energy requirenment increses

Hello, I have concern about getting the cooling and humidification load increased drastically for the model by decreasing heating setpoint by 2°C.

I have just changed the class list - Shcedule:Compact from 

Schedule:Compact,
  Htg-SetP-Sch, !- Name
  Temperature, !- Schedule Type Limits Name
  Through: 12/31, !- Field 1
  For: Weekends HoliDay, !- Field 2
  Until: 7:00, !- Field 3
  16, !- Field 4
  Until: 14:00, !- Field 5
  16, !- Field 6
  Until: 24:00, !- Field 7
  16, !- Field 8
  For: SummerDesignDay, !- Field 9
  Until: 24:00, !- Field 10
  16, !- Field 11
  For: WinterDesignDay, !- Field 12
  Until: 24:00, !- Field 13
  21, !- Field 14
  For: AllOtherDays, !- Field 15
  Until: 5:00, !- Field 16
  16, !- Field 17
  Until: 6:00, !- Field 18
  20, !- Field 19
  Until: 20:00, !- Field 20
  22, !- Field 21
  Until: 24:00, !- Field 22
  16; !- Field 23

to 

Schedule:Compact,
  Htg-SetP-Sch, !- Name
  Temperature, !- Schedule Type Limits Name
  Through: 12/31, !- Field 1
  For: Weekends HoliDay, !- Field 2
  Until: 7:00, !- Field 3
  14, !- Field 4
  Until: 14:00, !- Field 5
  14, !- Field 6
  Until: 24:00, !- Field 7
  14, !- Field 8
  For: SummerDesignDay, !- Field 9
  Until: 24:00, !- Field 10
  14, !- Field 11
  For: WinterDesignDay, !- Field 12
  Until: 24:00, !- Field 13
  19, !- Field 14
  For: AllOtherDays, !- Field 15
  Until: 5:00, !- Field 16
  14, !- Field 17
  Until: 6:00, !- Field 18
  18, !- Field 19
  Until: 20:00, !- Field 20
  20, !- Field 21
  Until: 24:00, !- Field 22
  14; !- Field 23

but instead of decreasing energy demand it increased because of the sharp rise in cooling and humidification demand, even though rest of the setpoints have not changed.

Why is the increased cooling load ?

KR, Yagnik

Heating setpoint decreased by 2°C but the overall energy requirenment increses

Hello, I have concern about getting the cooling and humidification load increased drastically for the model by decreasing heating setpoint by 2°C.

IDF - https://drive.google.com/drive/folders/1g-pp_iVpne9Dem3wLsXhqM5UFr7mHc-U?usp=sharing

I have just changed the class list - Shcedule:Compact from 

Schedule:Compact,
  Htg-SetP-Sch, !- Name
  Temperature, !- Schedule Type Limits Name
  Through: 12/31, !- Field 1
  For: Weekends HoliDay, !- Field 2
  Until: 7:00, !- Field 3
  16, !- Field 4
  Until: 14:00, !- Field 5
  16, !- Field 6
  Until: 24:00, !- Field 7
  16, !- Field 8
  For: SummerDesignDay, !- Field 9
  Until: 24:00, !- Field 10
  16, !- Field 11
  For: WinterDesignDay, !- Field 12
  Until: 24:00, !- Field 13
  21, !- Field 14
  For: AllOtherDays, !- Field 15
  Until: 5:00, !- Field 16
  16, !- Field 17
  Until: 6:00, !- Field 18
  20, !- Field 19
  Until: 20:00, !- Field 20
  22, !- Field 21
  Until: 24:00, !- Field 22
  16; !- Field 23

to 

Schedule:Compact,
  Htg-SetP-Sch, !- Name
  Temperature, !- Schedule Type Limits Name
  Through: 12/31, !- Field 1
  For: Weekends HoliDay, !- Field 2
  Until: 7:00, !- Field 3
  14, !- Field 4
  Until: 14:00, !- Field 5
  14, !- Field 6
  Until: 24:00, !- Field 7
  14, !- Field 8
  For: SummerDesignDay, !- Field 9
  Until: 24:00, !- Field 10
  14, !- Field 11
  For: WinterDesignDay, !- Field 12
  Until: 24:00, !- Field 13
  19, !- Field 14
  For: AllOtherDays, !- Field 15
  Until: 5:00, !- Field 16
  14, !- Field 17
  Until: 6:00, !- Field 18
  18, !- Field 19
  Until: 20:00, !- Field 20
  20, !- Field 21
  Until: 24:00, !- Field 22
  14; !- Field 23

but instead of decreasing energy demand it increased because of the sharp rise in cooling and humidification demand, even though rest of the setpoints have not changed.

Why is the increased cooling load ?

KR, Yagnik

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