[BLDG-SIM] how to simulate a window ac unit in trnsys

[Victor Hanby]

On 31 Oct 2006, at 10:07, Yatin Choudhary wrote:

>
> hi every one
> i am trying to simulate a type 56 with earth air tunnel hypocast ,... 
> want
> to compare with a 1.5 TR window unit ac
> please advise
>
>
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Dr Farraj Al-Ajmi pretty much did this for his PhD studies at 
Loughborough University (UK). It's described in

Al-Ajmi, F., D.L.Loveday and V.I.Hanby 2006 ``The cooling potential of 
earth-air heat exchangers for domestic buildings in a desert climate'' 
Building and Environment 41:235--244.

and

Hanby, V.I., F.Al-Ajmi and D.L.Loveday 2004 ``The optimal design for a 
ground cooling tube in a hot, arid climate''  Building Services 
Engineering Research and Technology 26(1):1--10.

Farraj wrote TYPES for the ground cooling tube and the subsoil 
environment. I've lost touch with him but I think he has posted here in 
the past. He might be able to help you with some code. I modeled the ac 
unit sing a fixed temperature approach for each coil (evaporator and 
condenser) then assumed a fixed fraction of Carnot to get the energy 
consumption.

Vic Hanby

-----------------------------------------------
Professor V I Hanby
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester LE1 9BH
UK
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