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RE: [EnergyPlus_Support] How to find out the direct solar radiation falling into an internal surface





At 10:30 June 21, the sun is almost over head.
 
Depends on where you are and how the windows are shaded, the solar direct beam may not enter the window at all at that time.
 
Solar angle altitude and azimuth are available as an output.
 
The reference points for daylighting object provide  the light intensity at the table or floow level.

 Dr. Li  

 
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: motabmx1@xxxxxxxxx
Date: Sun, 13 Nov 2011 23:38:23 +0000
Subject: [EnergyPlus_Support] How to find out the direct solar radiation falling into an internal surface

 
Dear e+ group

I am intersted to know how much radiation is falling into the floor of a determinate zone,

I have try using the follow output

Beam Sol Intensity from Ext Windows on Inside of Surface

but the values I am getting are very low and not what I was expected, as the day I am looking at is 21st june, and the room has large windows facing east and south. The output produce by energyplus is telling than less than 4.78E-03 w/m2 are falling into the floor at 10.30 when i was expected more radiation.

Am I using the right output? anyone has an idea what i am doing wrong?

thanks




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