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How to calculate nocturnal radiation in EnergyPlus

asked 2018-07-13 04:08:26 -0500

keiichirot gravatar image

updated 2018-07-13 13:10:13 -0500

Hi everyone.

I want to get the output of heat loss energy by nocturnal radiation in EnergyPlus. Which "output variables" has a relationship with nocturnal radiation?

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answered 2018-07-13 12:15:28 -0500

  • Surface Outside Face Net Thermal Radiation Heat Gain Rate [W]
  • Surface Outside Face Net Thermal Radiation Heat Gain Rate per Area [W/m2]
  • Surface Outside Face Net Thermal Radiation Heat Gain Energy [J]


These “outside face net thermal radiation” output variables describe the heat transferred by longwave infrared thermal radiation exchanges between the surface and the surroundings of the outside face. This is the net of all forms of longwave thermal infrared radiation heat transfer. The values can be positive or negative with positive indicating the net addition of heat to the outside face. Different versions of the report are available including the basic heat gain rate (W), and a per unit area flux (W/m2), and an energy version (J).

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Asked: 2018-07-13 04:08:26 -0500

Seen: 86 times

Last updated: Jul 13