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[EnergyPlus_Support] Air node energy balance
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] Air node energy balance
- From: "Liam O'Brien" <liambrn@xxxxxxxxx>
- Date: Tue, 22 Jun 2010 14:45:15 -0000
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- Delivery-date: Tue, 22 Jun 2010 08:50:19 -0600
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Hi All,
I'm trying to debug a model and have been looking at an energy balance in each zone. I would have expected the sum of the following report variables at any given time to be near 0 (except for rounding errors). However, I've discovered that they only way to achieve this is to have a fixed zone temperature (i.e., cooling setpoint = heating setpoint). I would have expected the Storage variable would reflect any rises and falls in air node temperature and maintain a balance (sum=0). It also doesn't balance over a year. The deviation report variable is 0, indicating that everything's correct. Does anyone know what's going on? Thanks!
Liam O'Brien
Zone Air Balance Internal Convective Gains Rate [W](Hourly)
Zone Air Balance Surface Convection Rate [W](Hourly)
Zone Air Balance Interzone Air Transfer Rate [W](Hourly)
Zone Air Balance Outdoor Air Transfer Rate [W](Hourly)
Zone Air Balance System Air Transfer Rate [W](Hourly)
Zone Air Balance Air Energy Storage Rate [W](Hourly)
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