[bldg-sim] Simulating an attached building

[Jason Glazer]

Nate,

Good question.  

The easiest thing to do is not model any heat transfer 
through the adjoining walls at all. This can be done by 
making it adiabatic (I don't think you can do this in 
EQuest) or by putting a bunch of insulation on the outside 
of any thermal mass layers.  Also remember to zero out any 
solar effects for that wall.  You can even completely 
eliminate the adjoining wall from the model but you are 
loosing some thermal mass that way.

Of course the most accurate approach is to actually model 
the adjoining spaces with schedules of operations and set 
points, systems, equipment, etc.. This becomes a problem 
because now those spaces have energy consumption that you 
don't want on your bill. To solve that you can assign 
everything to a meter that you don't use and ignore it.  
The extra effort to do this is usually not worth it since 
any heat transfer benefit from adjacent building cannot be 
counted on.

Jason

On 28 Dec 2005 at 14:37, Nate Gillette wrote:

> Please forgive the novice level question.  The EQuest
> software (and I'm guessing others) simulates a building as
> if it were a freestanding structure.  What is a good
> strategy to use for simulating a building that is attached
> to another building?  Think of a row of buildings in a
> downtown setting and the need to model one of the buildings
> in the middle.  
> 
> 
> 
> A building in this type of setting wouldn't have a heat loss
> or gain to the environment from a neighboring space.  How is
> this typically handled?
> 
> 
> 
> Thank you,
> 
> 
> 
> Nate
> 
> 
> 
> 
> 
> Nathan M. Gillette, AIA, LEED-AP
> 
> Architect
> 
> 
> 
> Bazzani Associates
> 
> 959 Wealthy St. SE
> 
> Grand Rapids, MI  49506
> 
> PH. 616-774-2002 x-11
> 
> FAX 616-774-0606
> 
> www.Bazzani.com
> 
> 
> 
> 
> 
> 
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=========================================================
Jason Glazer, P.E.  jglazer AT gard DOT com  847 698 5686
GARD Analytics - http://www.gard.com/
1028 Busse Highway, Park Ridge, IL 60068
Building Energy Simulation and Analysis
Admin of BLDG-SIM list for building simulation users



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