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[EnergyPlus_Support] Re: Weather file of College Station - Texas
- To: EnergyPlus_Support@xxxxxxxxxxxxxxx
- Subject: [EnergyPlus_Support] Re: Weather file of College Station - Texas
- From: Chris Gueymard <chris@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 06 Nov 2009 14:25:25 -0500
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Units are obviously Wh/m2 per day on a monthly-average basis.
The reason why DNI is lower in summer there (as at many other locations)
is because of a higher turbidity, higher humidity, and higher cloudiness.
Chris
>
> Hello
>
>
> To find the direct normal solar radiation for
> College Station, TX, I went to the following web site:
> http://www.eere. energy.gov/ buildings/ energyplus/ cfm/weather_ data.cfm
> Then, I chose the country, the state, the city
> then clicked on the Stat tab and get solar data. Here is what I got:
> Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
>
> 4311 4089 4543 4656 4756 3564 4865 4942 4264 2758 2725 4440
>
> I have a question:The trend for the DNI does not seem to make much sense to me. How can June
> be 3564 and January be higher 4311.
> Your input will be greatly appreciated.
> Many thanks.
> E. Tora
>
--
Chris A. Gueymard, PhD
Solar Consulting Services
P.O. Box 392
Colebrook, NH 03576, USA
Tel. (603) 237-8550
Fax (603) 237-5314
http://www.solarconsultingservices.com
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