[bldg-sim] Simulation of Production Halls

[Griffith, Brent]

John,

If you are able to characterize the stratification in the hall by some other means, you could model the implications of that temperature distribution in EnergyPlus using User Defined RoomAir models. Various temperature patterns can be entered.  EnergyPlus also has a displacement ventilation roomair model but it is difficult to say if it is applicable to your space.  



> -----Original Message-----
> From: bldg-sim at gard.com [mailto:bldg-sim at gard.com]On Behalf Of John
> Olson
> Sent: Tuesday, June 06, 2006 5:22 AM
> To: bldg-sim at gard.com
> Subject: [bldg-sim] Simulation of Production Halls
> 
> 
> Greetings Group,
> 
> I am a graduate student studying building service technology at the 
> University of Applied Sciences in Munich, Germany. I am attempting to 
> compare various indirect evaporative cooling systems in a 
> large production 
> hall with displacement ventilation. Because the secondary air 
> flow is (in 
> some configurations) extracted near the ceiling, I expect the 
> effects of 
> stratification to be significant. Does anyone have experience 
> defining such 
> a space or know of existing literature which might be of help?
> 
> The possible solutions I see are: coupling air flow with 
> multiple zones 
> (stacked), defination of plenum space or multiple nodes in a 
> single zone. 
> Each possibility seems feasible, but I lack the experience to 
> know which 
> assumptions are necessary to obtain realistic results. The 
> simulation should 
> be on (at least) an hourly basis.
> 
> I am aware that this topic is not particularly new and have 
> seen multiple 
> similar inquiries, but have not yet found a satisfying solution.
> 
> I have access to both TRNSYS and EPlus. The results of the 
> simulations are 
> to be included in my Masters Thesis, in which I will compare 
> investment/operating costs of various industrial hvac solutions for 
> production facilities.
> 
> Any English or German language responses would be greatly appreciated!
> 
> Thanks,
> 
> John Olson
> 
> 
> 
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