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<div><font size="2">Dear Users,</font></div>
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<div><font size="2">I'm facing problems using Type109-User format. </font></div>
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<div><font face="Arial, sans-serif" size="2">I want to use constant wheater data in order to understand what is exactly happening at solar thermal collectors. I studied the TRNSYS manual to get information about the format of the user-wheater-data-file .109,
and I think that I understood all. </font></div>
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<div><font face="Arial, sans-serif" size="2">To get constant wheater data, I set the ambient temperature to constant 20°C, and I also set the diffuse horizontal radiation IDIFF_H and the global horizontal radiation IGLOB_H to constant values (for example 1000
W/m² and 500 W/m²).</font></div>
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<div><font face="Arial, sans-serif" size="2">When I run the simulation, I get strange results. Even though I set the radiations to constant values, the values in the diagram of the results are not constant (they show a typically daily behavior), but the collector
outlet temperature and the usefull energy gain are constant. It seems to me, that there is no dependance between the radiation and the outlet temperature/energy gain... </font></div>
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<div><font face="Arial, sans-serif" size="2">I attached the .tpf and my .109 files for you!</font></div>
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<div><font face="Arial, sans-serif" size="2">Could somebody please tell me if I use the .109-user-file the right way and if not, explain me what I do wrong?</font></div>
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<div><font face="Arial, sans-serif" size="2">Thanks in advance!</font></div>
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<div><font face="Arial, sans-serif" size="2">Mit freundlichen Grüßen / Kind regards</font></div>
<div><font face="Arial, sans-serif" size="2">Christopher Haluf</font></div>
<div><font face="Arial, sans-serif" size="2">Intern</font></div>
<div><font face="Arial, sans-serif" size="2"> </font></div>
<div><font face="Arial, sans-serif" size="2">Siemens AG</font></div>
<div><font face="Arial, sans-serif" size="2">Corporate Technology</font></div>
<div><font face="Arial, sans-serif" size="2">CT PS 3</font></div>
<div><font face="Arial, sans-serif" size="2">Günther-Scharowsky-Str. 1</font></div>
<div><font face="Arial, sans-serif" size="2">91058 Erlangen, Deutschland</font></div>
<div><font face="Arial, sans-serif" size="2">Tel.: +49 (9131) 7-24724 </font></div>
<div><font face="Arial, sans-serif" size="2">Fax: +49 (9131) 7-21339 </font></div>
<div><font face="Arial, sans-serif" size="2"><a href="mailto:christopher.haluf@siemens.com"><font color="#0000FF"><u>mailto:christopher.haluf@siemens.com</u></font><font color="#808080"> </font></a></font></div>
<div><font face="Arial, sans-serif" size="2"> </font></div>
<div><font face="Arial, sans-serif" size="1">Siemens Aktiengesellschaft: Vorsitzender des Aufsichtsrats: Gerhard Cromme; Vorstand: Peter Löscher, Vorsitzender; Wolfgang Dehen, Heinrich Hiesinger, Joe Kaeser, Barbara Kux, Hermann Requardt, Siegfried Russwurm,
Peter Y. Solmssen; Sitz der Gesellschaft: Berlin und München, Deutschland; Registergericht: Berlin Charlottenburg, HRB 12300, München, HRB 6684; WEEE-Reg.-Nr. DE 23691322</font></div>
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