[EnergyPlus_Support] why sky clearness for winter design days must be 0

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Subject: [EnergyPlus_Support] why sky clearness for winter design days must be 0

From: "JUAN FRANCISCO BELMONTE TOLEDO juanf.belmonte@xxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>

Date: Fri, 2 Sep 2016 07:52:46 +0000

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Thread-topic: why sky clearness for winter design days must be 0

Hello all.

I am not sure why the INPUT OUTPUT REFERENCE manual indicates that the sky clearness parameter for Winter design days should be 0 (i understand it means it is a cloudy day), as a clear sky (sky clearness=1) is a more unfavorable situation (higher heating peak loads) due to the lower radiant temperature of the sky.

Regards.

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Posted by: JUAN FRANCISCO BELMONTE TOLEDO <JuanF.Belmonte@xxxxxxx>

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