<div>Dear:</div>
<div> </div>
<div>Actually I would like to ask similar questions about Type 109 and Type 15-3. I used weather data of Beijing from TRNSYS weather data folder for type 109 and from Energy plus website for type 15-3, but quite different daily integrated solar radiation for a tilted surface is obtained. I am really confused about such results.</div>
<div> </div>
<div>Yours sincerely</div>
<div> </div>
<div>Patrick<br><br></div>
<div class="gmail_quote">2010/10/25 <span dir="ltr"><<a href="mailto:trnsys-users-request@cae.wisc.edu">trnsys-users-request@cae.wisc.edu</a>></span><br>
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<br>Today's Topics:<br><br> 1. Zenith angle/Problem with meteonorm indian weatherfile<br> (<a href="mailto:thiemann.stefan@vdi.de">thiemann.stefan@vdi.de</a>)<br><br><br>---------- ÒÑת·¢Óʼþ ----------<br>From: <<a href="mailto:thiemann.stefan@vdi.de">thiemann.stefan@vdi.de</a>><br>
To: <<a href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a>><br>Date: Sat, 23 Oct 2010 19:10:51 +0200<br>Subject: [TRNSYS-users] Zenith angle/Problem with meteonorm indian weatherfile<br>Hello,<br>
<br>I would like to pick up a subject already metioned on 7.July 2010<br> concercing the incidence angle.<br>Comparing Type 109 with Type 15 for a TMY2-file I noticed some<br> differences in the zenith anlge especially near sunrise and sunset.<br>
When the sun is down Type 109 is 99¡ã (??) while Type 15 ist nearly<br> (approx. 2-3 degrees lower) than 90¡ã. But why?<br>Is there any Trnsys convention on the definition of the zenith angle<br> during the night?<br><br>I have another problem concerning indian weatherfiles. Calculating the<br>
solar radiation for vertical facades on the east and west I got very<br> different and strange results. Does anybody know about a similiar<br> problem?<br><br>Thank you, Stefan<br><br><br><br><br><br>_______________________________________________<br>
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