The actual airflow into a zone does not directly affect the heat transfer through surfaces in the zone. The room air model controls the temperature distribution
in the space, and consequently the conduction. The default model is well mixed. Using the default model of well mixed, it does not matter if it takes 100 cfm, 1000 cfm, or 10000 cfm of mechanical system airflow to meet the load. If you still want to study
this, you do not need a mechanical system at all, just let the room float, a simulation that E+ can perform. However, I suggest that you review the documentation and engineering of the room air distribution choices. Also realize that there is radiant energy
exchange between surfaces in a zone that may impact the total heat flows.
Ned Lyon, P.E. (MA, WV)
Staff Consultant
SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9350 direct
617.285.2162 mobile
781.907.9009 fax
www.sgh.com
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Friday, March 04, 2016 4:17 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Not treated airflow
Hi everybody,
I would like to simulate a supplied airflow inside a room not treated by any system. The inlet air temperature should change simultaneously with the actual indoor air temperature. The objective is to create an air recirculation inside the room to better
understand how the model is calculating the convective heat transfer coefficient. I would like to know in which way I can model this.
Thank you in advance
Mirko
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Posted by: "Edward G. Lyon" <EGLyon@xxxxxxx>
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