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Zero values on surface window front / back face temperature layer 1

Output variables of "surface window front face temperature layer 1" and "surface window back face temperature layer 1" are being set for an EnergyPlus example file. The output for these two variables are all zero. However, other variable such as "surface inside/outside face temperature" is available. The file and data used is listed below.

Version of EnergyPlus : 8.1
Example file : RefBldgLargeOfficeNew2004Chicago
Weather data : USA
ILChicago-OHare.Intl.AP.725300TMY3

The files are available on folder of EnergyPlus but I also uploaded to below link for your convenience. https://www.dropbox.com/sh/jnskw49fho...

Could anyone please solve this problem? Thank you.

Martin's avatar
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Martin
asked 2015-06-08 09:02:15 -0500
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1 Answer

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These report variables:

Output:Variable,*,Surface Window Front Face Temperature Layer 1 ,Hourly;
Output:Variable,*,Surface Window Back Face Temperature Layer 1 ,Hourly;

are outputs for the complex fenestration model. These results will be 0 if Construction:ComplexFenestrationState is NOT used in the input.

The example files CmplxGlz*.idf show how this fenestration model is constructed. I added these variables to CmplxGlz_MeasuredDeflectionAndShading.idf and these reports are non-zero.

The methodology for reporting variables in the report data dictionary (rdd) is to report only the outputs available for the input file being simulated. In your case these variables were reported to the rdd in error, mainly because the program did not know a complex fenestration object was not used in the input file when this output report was originated.

rraustad's avatar
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rraustad
answered 2015-07-26 12:21:18 -0500, updated 2015-07-26 12:28:16 -0500
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