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BEopt geometry issue

asked 2021-07-14 09:54:41 -0500

mfath's avatar

updated 2021-07-15 11:07:27 -0500


I have created a 2400 Sq.ft res building in BEopt. There is an unfinished 1200 Sqft basement. Two living floors each 1200 sqft and an unfinished attic of 1200 sqft. I am expecting that the Table output of the E+ file shows 2400 sqft of conditioned area; however, my output is 3610.7 sqft. I would appreciate it if someone could provide some insights about this.

Best, Mohammad

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Can you attach your BEopt project file and/or provide screenshots? I just drew the building you described and got the correct result in the E+ table output file.

shorowit's avatar shorowit  ( 2021-07-14 10:06:53 -0500 )edit

@shorowit Sure. Please see the BEopt file using the link below: I would appreciate your thoughts.

Best, Mohammad

mfath's avatar mfath  ( 2021-07-14 15:13:42 -0500 )edit

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answered 2021-07-15 10:16:30 -0500

I identified the "issue". EnergyPlus is characterizing the unfinished basement thermal zone as conditioned because it has a WaterHeater:HeatPump:WrappedCondenser (heat pump water heater) in it, even though there is no space heating/cooling equipment serving it. So the BEopt model is defined correctly, but EnergyPlus is not able to correctly infer the conditioned zones.

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Thank you very much @shorowit. I really appreciate your time and consideration

mfath's avatar mfath  ( 2021-07-15 11:06:16 -0500 )edit

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Asked: 2021-07-14 09:54:41 -0500

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Last updated: Jul 15 '21