A problem about model building in energyplus

asked 2016-12-14 11:00:26 -0600

gaofeng
225 ●3

updated 2017-01-27 14:52:38 -0600

Julien Marrec

29716 ●94 ●76 http://www.effibem.com/

When I run the simulation in E+, there is always a warning as follows:

Warning ** GetSurfaceData: InterZone Surface Areas do not match as expected and might not satisfy conservation of energy:
   **   ~~~   **   Area=306.2, Multipliers=1, Total Area=306.2 in Surface=SURFACE 12 Zone=THERMAL ZONE 1
   **   ~~~   **   Area=306.2, Multipliers=3, Total Area=918.7 in Surface=SURFACE 53 Zone=THERMAL ZONE 2

I want to know how I can fix this problem?

answered 2016-12-14 11:56:59 -0600

David Goldwasser

20405 ●94 ●14 http://www.openstudio.net/

Are you using a zone multiplier one of of two adjacent thermal zones? If so, you may consider switching those surfaces to adiabatic. That is what is often done for the floor/ceiling boundary where there is a mid floor with zone multipliers greater than 1 and top and bottom floor multipliers that are 1.

If you see this warning and the area difference in area is very small in non-multiplier scenario then it could probably be ignored.

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Thank you for your help， I will change it and check the result. But I always have another question for thermal zone. That is whether I can set two zones which locate in different storeys into a same thermal, or I can just set the zone in same storey to the same thermal zones.