Question-and-Answer Resource for the Building Energy Modeling Community
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These should always balance to near-zero. I added the following output variables to example file RefBldgStripMallNew2004_Chicago.idf:
Output:Variable,*,Surface Outside Face Convection Heat Gain Rate,timestep; !- Zone Average [W]
Output:Variable,*,Surface Outside Face Net Thermal Radiation Heat Gain Rate,timestep; !- Zone Average [W]
Output:Variable,*,Surface Outside Face Solar Radiation Heat Gain Rate,timestep; !- Zone Average [W]
Output:Variable,*,Surface Outside Face Conduction Heat Transfer Rate,timestep; !- Zone Average [W]
I chose a couple of surfaces and found that the sum of these four variables is always near zero (residuals on the order of 1E-05 or smaller). You have to be careful with the sign convention of Surface Outside Face Conduction Heat Transfer Rate - it is the opposite of qko in the equation above.
