[Equest-users] Different roof and floor.

[Charles Land]

I always use the roof and floor designation in the wizard of below conditioned space and over conditioned space.  And then any area that is not directly under the second floor I make it a separate shell with the appropriate roof.  I suppose either method would work, but if you have a lot of spaces it could become tedious having to go through the construction of each one individually.

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Bruce Easterbrook
Sent: Friday, October 29, 2010 9:14 AM
To: Самолётов Михаил
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Different roof and floor.


  One way is to make the zoning on the first floor line up with the second floor foot print.  This I think, is the best way if the second floor is a complex shape.  The addition of a roof or it's deletion can be geometrically tricky to do if it spans only part of a zone.  I have found lining up the zones with the foot print an easier solution.  You may have to add a few extra zones to get the matching shape.  You delete the roof under the foot print.  If the zoning doesn't match your HVAC zones you can adjust the zone grouping so that it does.  Turn any interior walls into air walls if they don't actually exist on the first floor.  You may also have to adjust or delete the floor of the second story as the ceiling of the first floor is floor of the second floor.  Check through your layers to make sure they are consistent with the actual construction.  Make sure your boundaries are referencing the proper adjacent zones.  This is the technique, and may not exactly match what you are doing, you will have to check through everything to make sure everything is consistent.
Bruce Easterbrook
Abode Engineering

On 29/10/2010 02:48 AM, Самолётов Михаил wrote:
Hi

I have 2-storey building. The 1st storey in a plan is not like the 2nd one. That's why I created 2 shells (one above the other). For the 1st storey I have created a roof (because part of a ceiling is outside the building). And for the 2nd storey I have created a floor. Parameters of the roof of 1st story and the floor of the 2nd story are different! During the calculation the eQUEST will calculate Heat Flux through the ceiling/floor.
How eQUST calculate it if ceiling of the 1st storey is not the same as the floor of the 2nd storey?
If air condition in 1st and 2nd story same, this question not so important, but if condition has big different - this question is very actual!


Sincerely yours,
Mikhail Samoletov
Chief engineer of
"Numerical Simulation Department"
TECHNIQUE BUREAU
Cvetochnaya str, 25"Zh", 196084 St.Petersburg, Russia
www.bt-comfort.ru<http://www.bt-comfort.ru>
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