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[EnergyPlus_Support] Weather data - DISC Maxwell
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- Subject: [EnergyPlus_Support] Weather data - DISC Maxwell
- From: "le_carambar" <le_carambar@xxxxxxxx>
- Date: Mon, 22 Jun 2009 14:41:42 -0000
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Dear users,
I would like create an epw file from real weather data.
I have Global Horizontale Insulation and try to approximate Direct Normal Radiation. The Direct Insolation Code (DISC) Model developed by Dr. E.L. Maxwell seems to do it.
However, I found negative and positive values for Direct Normal Insulation. Two exemple :
lat:50,56 ; long:2,48 ; date:8th Novembre,12h00 ; ETR:1396 ; TZ=1 ; DayAgle:5,35 ; GlobaleHorizontaleInsulation:314W/m² ; DirectNormalInsulation:645W/m²
lat:50,56 ; long:2,48 ; date:1st Novembre,10h00 ; ETR:1391 ; TZ=1 ; DayAgle:5,23 ; GlobaleHorizontaleInsulation:28W/m² ; DirectNormalInsulation:-48W/m²
while the first one seems coherent, the second one isn't possible.
I probably make a mistake, but I don't find it. Have you an idea ?
Thanks in advance
Camille T.
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