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<p>The difficulty of converting measured weather data to an epw
depends a lot on how complete are your data. For a usable
simulation weather file, you need these six key parameters -
temperature, humidity, wind speed and direction, global horizontal
and direct normal solar radiation. The solar radiation is
generally the most problematic. There are various models that
calculate solar radiation from other climate parameters, esp.
cloud cover, but there are not many publicly-available programs
that have them. Also, cloud cover requires human observation or a
dedicated laser and is almost never recorded at typical weather
monitoring stations. Lastly, you have to make sure that whatever
program you use interpolates in case there are missing
observations in your data stream.</p>
<p>Joe<br>
</p>
<pre class="moz-signature" cols="90">Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 205A
Moraga CA 94556
<a class="moz-txt-link-abbreviated" href="mailto:yjhuang@whiteboxtechnologies.com">yjhuang@whiteboxtechnologies.com</a>
<a class="moz-txt-link-freetext" href="http://weather.whiteboxtechnologies.com">http://weather.whiteboxtechnologies.com</a> for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"
</pre>
<div class="moz-cite-prefix">On 3/26/2018 6:33 AM, Ibrahim NEYA via
Bldg-sim wrote:<br>
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<div>Hello everybody,<br>
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I have measured on-site climate data and stored them
in an excel sheet.<br>
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I want to use them in energy-plus for temperature
prediction in the building.<br>
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I don't know how to put them in an epw file in order to
perform the simulation.<br>
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I will be happy to know that you can help me.<br>
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Thank you for your time<br>
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Regards<br clear="all">
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-- <br>
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NEYA Ibrahim
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<div><font face="georgia, serif">Energy
and Electrical Engineer</font><br>
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<div><font face="georgia, serif">Tél : </font><font
face="tahoma, sans-serif">00226 61
85 77 07</font></div>
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