[EnergyPlus_Support] Best way to simulate void (like in Mall or Mezzanine)

["giovani_haryadi@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

All,

I got the project to evaluate air conditioning at mall. The problem is temperature in level 5 (getting heat directly from skylight) is too high (average is 27 degree of C). Owner want to know if we do something to skylight like adding shading or use film can make temperature lower to comfort level. Skylight is 21 meter from level 5. 

Then my question is how the best way to simulate that? I consider some options :

1. Modelling 1 zone cooling for level 5 and void. But I think energyplus calculates average temperature for whole zone.

2. Using zone mixing feature. The problem is how to define the airflow between the zone.

3. Or Can we define special material for wall or ceiling so there is really small resistance for heat transfer between level 5 and void ?

Please let me know what do you think the best way to solve the problem. I really hope energyplus can offer good solution because CFD is too expensive for owner :)

 Really appreciate for any help.

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Posted by: giovani_haryadi@xxxxxxxxx

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