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Vertical solar radiation on windows/walls

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

Maryam's avatar

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's avatar Archmage  ( 2017-01-02 15:58:36 -0500 )edit

I meant solar radiation on vertical surfaces.

Maryam's avatar Maryam  ( 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's avatar Elbaek  ( 2017-01-03 03:31:51 -0500 )edit

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

Archmage's avatar

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

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I think that's it. Thanks.

Maryam's avatar Maryam  ( 2017-01-04 16:04:17 -0500 )edit

I need exactly this out put too :((

lwxtd's avatar lwxtd  ( 2017-01-05 08:14:40 -0500 )edit
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answered 2017-01-03 07:58:34 -0500

nathan.vader's avatar

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's avatar Maryam  ( 2017-01-04 16:10:44 -0500 )edit
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nathan.vader's avatar nathan.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's avatar Maryam  ( 2017-01-11 15:26:51 -0500 )edit

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

Seen: 1,740 times

Last updated: Jan 03 '17