Interior Space Temperature

4 posts / 0 new
Last post

Hello everyone,

I am trying to model a building with no heating and cooling system to see how the interior temperature fluctuates based on exterior weather conditions during the summer. Does anyone know if eQuest looks at space temperature when the heating/cooling systems are not on? So far I've only been able to track solar radiation on the building facade....

Thank you!

Ekaterina Tzekova

Ekaterina Tzekova's picture
Joined: 2012-04-11
Reputation: 0

If the fan schedule is off (and fan control isn't cycle at night) eQUEST doesn't really look at space temp.

My inclination would be to create a psz system serving your space with very small cooling capacity (e.g. 1 BTU/hr -- 0 will cause it to autosize) an an 'always on' fan schedule. Fan volume would depend on whether you wanted to introduce OA.
Brian Fountain

bfountain's picture
Offline
Joined: 2011-09-30
Reputation: 201

If you leave the thermostats in the space as undefined and the fan schedule
in the HVAC tab, the results should show that the HVAC never turns on, and
give you the results you are wishing to see.

Hope this helps,
Rob

rdh4176's picture
Offline
Joined: 2011-02-14
Reputation: 0

See - http://bepan.info/engg-calcs Excel File - 16 - Project Space-Temp-Rise
The DOE2 programs do not have a Space or Room level below the Zone level. Zone is a group of rooms controlled by a thermostat in one of the rooms. The temp of the room with the thermostat is maintained and the temps of the other rooms float. A Loads program should show the temps in the rooms that have no thermostat. The SOM-IBM-AES loads program developed in the late 1980s (and died in the early 1990s) did have this feature. See - http://bepan.info/hvac-prog/x2-som-ibm-aes-hvac
I think the TRACE program has a room level but I am not sure it calculates the temp in the rooms without a thermostat. If it does, then provide no HVAC to a room without a thermostat to get the resulting temp. But then such rooms would have windows open in summer.

Varkie Thomas's picture
Offline
Joined: 2011-09-30
Reputation: 0