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Re: [EnergyPlus_Support] How to convert real weather data to epw file
You can try this.
<http://www.fao.org/nr/climpag/pub/en3_051002_en.asp>http://www.fao.org/nr/climpag/pub/en3_051002_en.asp
<http://rredc.nrel.gov/solar/models/spectral/SPCTRAL2/>http://rredc.nrel.gov/solar/models/spectral/SPCTRAL2/
A greeting.
El Miércoles 11 de junio de 2014 9:10, "Joe Huang YJHuang@xxxxxxxxxxxxxxxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> escribió:
Exactly how does that help in deriving solar radiation in any way ?
On 6/10/2014 10:15 AM, Jeremiah Crossett <mailto:jcrossett@xxxxxxxxxxxxxxx>jcrossett@xxxxxxxxxxxxxxx [EnergyPlus_Support] wrote:
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I typically "hack" a file by taking measured data such as temperature and humidity, getting them into hourly format (if they where for example measured in 5 min increments I take the median average or top of hour) and then find the closest epw file and change the data for the time measured series points. The simple workflow I use is to first open the closest epw file in weather converter, then convert to epwcsv. Then edit the epwcsv by adding my measured data, then save and use the weather converter to convert the epwcsv back to epw file with some indication of the changes made in the file name. The process takes less then an hour and is free- however there are obviously better ways to do it!
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Jeremiah D. Crossett | Senior Analyst | Phase Change Energy Solutions
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<http://www.phasechange.com/>http://www.phasechange.com/ ;
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> On Tue, Jun 10, 2014 at 10:05 AM, <mailto:bvonmoss@xxxxxxxxx>bvonmoss@xxxxxxxxx [EnergyPlus_Support] <<mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx>EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
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The historical real-time weather in (non-EnergyPlus) CSV has "CldCv1", "CldCv2", "CldCv3" data, which is "SKC" or blank. It does not have the numeric "sky cover" data. Cloud Cover is not an input field to the weather converter program. Is it possible to populate the global_horizontal_radiation, direct_normal_radiation, and diffuse_horizontal_radiation fields with such data? I've found solar irradiation data for US sites, but I'm working on a location in Asia. Any ideas?
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Posted by: Felix Alvaro <chiso_es@xxxxxxxx>
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