[Equest-users] What does Space Heat include?

[Nicholas Caton]

The last three pages of this document may prove a helpful starting place for “what’s included in XXX end use category” questions.
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From there:
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It’s hard for anyone to do better than just guess at what might be the source from what you’ve provided… reheat/baseboard/pilot lights… it might not be zone-thermostat schedule driven heating.

On the aside, have you explored whether you have any zones still dropping to 40F that could be a source (subjectively warm climates can still have brisk evenings)?  You can remove all calls for heat by defaulting away the heating schedule assignment, but pay mind to how close to freezing you go – your mechanical designer may not be so comfortable with the results!

Hope that’s helpful,

~Nick

[cid:image002.png at 01D383EC.38CAC650]
Nick Caton, P.E., BEMP
  Senior Energy Engineer
  Regional Energy Engineering Manager
  Energy and Sustainability Services
  Schneider Electric

D  913.564.6361
M  785.410.3317
F  913.564.6380
E  nicholas.caton at schneider-electric.com<mailto:nicholas.caton at schneider-electric.com>

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

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From: Equest-users [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Jing Hong via Equest-users
Sent: Tuesday, December 26, 2017 9:08 AM
To: equest-users at lists.onebuilding.org; equest-users at onebuilding.org
Subject: [Equest-users] What does Space Heat include?

Dear all,

Happy Holiday!

I have a question: What does Space Heat include in eQuest? I set a heating design temp very low, like 40 F for a ventilation only condition, but still get 0.01  x10^6 Btu Space Heat in June and Aug for Climate zone 3B. That does not make any sense. I tried several ways to detect where that space heat comes from in June, but could not figure out.
Here is the background of my model: It is in climate zone 3B. The baseline is DX+Furnace (ASHRAE). I have four schedules to control temperature: Cooling (75F), Heating(72F), Ventilation for cooling season(100F), ventilation for heating season(40F). I setup 100F and 40F to avoid turning the cooling and heating mode on for the rooms requesting ventilation only.

Please let me know if I did something wrong for my model. Thank you!

Jing
--
PhD Candidate, LEED AP BD+C

School of Architecture and Urban Planning
University of Wisconsin-Milwaukee


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