Sorry,
-------- Forwarded Message --------
| Subject: | Re: [Equest-users] Modelling Non AC building in eQUEST |
|---|---|
| Date: | Fri, 17 Feb 2017 14:59:15 -0800 |
| From: | Joe Huang via Equest-users <equest-users@xxxxxxxxxxxxxxxxxxxxx> |
| Reply-To: | Joe Huang <yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx> |
| To: | equest-users@xxxxxxxxxxxxxxxxxxxxx |
I have doubts about how you're doing this. I used to model non-conditioned buildings in Asia by using the Residential (RESYS) system and setting the Heating and Cooling Setpoint temperatures way below or above the actual room temperature so that they never come on, e.g., Heating at 99 and Cooand , which uses a different VENT-TEMP-SCHEDULE for the temperature above which windows are expected to open, e.g., 75 F, PROVIDED that the outdoor air temperature or enthalpy is lower. To be doubly safe, you can set the Heating and Cooling capacity to very small numbers, like 0.1, etc., although that's immaterial because they would never come on.
I don't see how you can derive unmet hours for an
unconditioned space, but you can derive the hours above
comfort, e.g., 78 F, and tabulate that. I used to call them
Heating or Cooling Discomfort Hours :-)
Joe
Joe Huang White Box Technologies, Inc. 346 Rheem Blvd., Suite 205A Moraga CA 94556 yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx http://weather.whiteboxtechnologies.com for simulation-ready weather data http://www.whiteboxtechnologies.com (o) (925)388-0265 (c) (510)928-2683 "building energy simulations at your fingertips"
Dear eQuesters,
I have the following doubt.
1. This is a hostel building. all the rooms are non ac except the wardens cabin and the counselling room. These two rooms have split units.
2. I have to model this for thermal comfort compliance - so i need to show that there are less unmet hours in the building.
How do I go about this?
What i thought was as under,
1. I made the entire model and assigned the ac and non ac spaces as per design.2. I plan to put a system in the non ac rooms, such that the CFM generated due to ceiling fans can be put as Fan Flow Parametres. A 12 hour fan schedule (as per the evening + night time occupancy hours) can be assigned to this. Other than this there will be no input parameter assigned to this system - no COP, no efficiency. Other than this these rooms have to behave as non ac spaces.
Now my questions,1. Do you think this is logical way to do?2. Is there any other way to go about this?3. If what i have described in point 2 is okay, while i assigning systems what should it be? Like Sum or FNSYS or VAVS etc? Please let me know the specifics
Please give me an insight into this ya.
RegardsKirti
Kirti Pabrekar - Patil
M. Arch, LEED GA,IGBC AP, GRIHA Trainer & Evaluator,
Green is a commitment...not a competition
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Posted by: Joe Huang <yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx>
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