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What is the best practice to model an large space in EnergyPlus by using Multi-zone method?

I want to get the energy and temperature in different areas of the big space(without using CFD). However I still don't have a clear idea what is the best way of modeling it. I am looking for recommendations on:

1)Preparing geometry: Should we split the large zone into small mult-zones? Is that even make sense considering the EnergyPlus will transfer the radiation as diffuse radiation between the zones? Is natural ventilation simulated correctly?

I simulated the load in different areas.The results of my simulation seem to be untrue.The load on the inter-zones is significantly smaller than the outer zones, and the gap is large, which seems strange.

What is the best practice to model an large space in EnergyPlus by using Multi-zone method?

I want to get the energy and temperature in different areas of the big space(without using CFD). However I still don't have a clear idea what is the best way of modeling it. I am looking for recommendations on:

1)Preparing geometry: Should we split the large zone into small mult-zones? Is that even make sense considering the EnergyPlus will transfer the radiation as diffuse radiation between the zones? Is natural ventilation simulated correctly?

I simulated the load in different areas.The results of my simulation seem to be untrue.The load on the inter-zones is significantly smaller than the outer zones, and the gap is large, which seems strange.