Of course I look at the detailed results.
The blind is outside the window.
What surprises me is that the hourly results from "Window Transmitted Beam Solar" are higher due to te BlockBeamSolar function.
I would expect that this value should be lower as a result from the optimal slat angle.
I've simulated a dozen variants, each time with a different default angle and different min and max angle.
With a fixed angle I have 67 kWh/m² cooling load. Every other simulation with the BlockBeamSolar function gives me results between 84 and 92 kWh/m².
Geert
Van: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] Namens YuanLu Li
Verzonden: 12 August 2012 13:51
Aan: EnergyPlus_Support
Onderwerp: RE: [EnergyPlus_Support] Blockbeamsolar
I think you are one of those user who does not look at the detailed timestep values.
If the blind is inside the zone, the beam is blocked, but the heat and the diffused component may increase.
IF you mount the blind outside, you may get a different result.
The heat through the wall is also changing when the son moves. Therefore, averaged value such as cooling load will not give you a true picture.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: geert.bellens@xxxxxxxxxxxxxxxxxxxxxx
Date: Sun, 12 Aug 2012 08:10:00 +0000
Subject: [EnergyPlus_Support] Blockbeamsolar
Using blockbeamsolar to simulate a sun protection automatically moving with the angle of the sun, I get strange results.
The best result apparantly is to put the angel of the sun protection always at 45°.
Using the Blockbeamsolar function, which follows the sun, cooling loads get worse. I would expect the opposite. Or am I missing something....?
Geert
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