[TRNSYS-users] why the cooling load is so small and much smaller than the heating load

[jw_zhou]

dear sir,

I send files of  "***.tpf" and "***.bui" to you for your help to find out why the sensible cooling energy demand is so small and much smaller than sensible heating energy demand. For you quick understand of my projrct, some brief information about the project are listed below:

1. there are three zone from south to north, the sunzone is face to south, the backzone to north, and the midzone, which is modeled as the hall way, is adjacent to both the sunzone and backzone. all of the zones have same size and 48m^2.

2. I want to get the building load of the sunzone, so I added an internal heating(set points=20℃) and cooling（set points=27℃),  also add a ventilation type--newwind which air chang rate is 0.6 per hour. 

3. the main outputs of sunzone are NTYPE1, 10，30, 31 which are zone air temperarue(℃), latent energy demand(W/m^2), sensible cooling energy(W/m^2), sensible heating energy(W/m^2). 

4. According to results, there are two unreasonable points: heating load is much larger the cooling load;  the latent energy damand had taken a large part of whole cooling load. would I omited something or these results are right?

hope for your reply, and thank you very much.
2010-11-08 



jw_zhou 
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