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Vertical solar radiation on windows/walls

asked 2016-12-29 15:40:55 -0500

Maryam gravatar image

updated 2016-12-30 08:22:06 -0500

Hi all,

I was wondering how to find the value of solar vertical radiation on windows/walls in Energyplus or Openstudio. I cannot find it on the list of output variables in Energyplus and it seems that Openstudio-Radiance does not generate this value either.

Thanks, Maryam

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Could you explain what you mean by "vertical" here?

Archmage gravatar imageArchmage ( 2017-01-02 15:58:36 -0500 )edit

I meant solar radiation on vertical surfaces.

Maryam gravatar imageMaryam ( 2017-01-02 22:18:30 -0500 )edit

I can't remember if you can get that output directly, but you could always calculate it using the direct and diffuse solar radiation on horizontal (this you can get), and the various solar-angles.

Elbaek gravatar imageElbaek ( 2017-01-03 03:31:51 -0500 )edit

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answered 2017-01-03 10:05:31 -0500

Archmage gravatar image

I think you want Surface Outside Face Incident Solar Radiation Rate per Area.

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I think that's it. Thanks.

Maryam gravatar imageMaryam ( 2017-01-04 16:04:17 -0500 )edit

I need exactly this out put too :((

lwxtd gravatar imagelwxtd ( 2017-01-05 08:14:40 -0500 )edit
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answered 2017-01-03 07:58:34 -0500

nathan.vader gravatar image

There are a lot of variables that deal with heat transfer on windows/surfaces. Are you looking for something like this?

Output:Variable,*,Surface Outside Face Solar Radiation Heat Gain Rate,hourly; !- Zone Average [W]

Output:Variable,*,Surface Outside Face Solar Radiation Heat Gain Rate per Area,hourly; !- Zone Average [W/m2]

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Thank you. Do you know where I can find the definition of each? I could not find that in Eplus documentation.

Maryam gravatar imageMaryam ( 2017-01-04 16:10:44 -0500 )edit
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nathan.vader gravatar imagenathan.vader ( 2017-01-05 08:37:52 -0500 )edit

Thanks! The variable I need is Surface Outside Face Incident Solar Radiation Rate per Area; Now based on the definition this variable includes ground diffuse radiation. However, in my model I have not defined a ground. Would that matter?

Maryam gravatar imageMaryam ( 2017-01-11 15:26:51 -0500 )edit

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Asked: 2016-12-29 15:40:55 -0500

Seen: 1,353 times

Last updated: Jan 03 '17