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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=IT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks David. I’ll try to do these checks and I’ll show you the results.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>R<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='color:windowtext;mso-fareast-language:IT'>Da:</span></b><span style='color:windowtext;mso-fareast-language:IT'> David BRADLEY [mailto:d.bradley@tess-inc.com] <br><b>Inviato:</b> mercoledì 6 marzo 2013 18:37<br><b>A:</b> Riccardo<br><b>Cc:</b> trnsys-users@cae.wisc.edu<br><b>Oggetto:</b> Re: [TRNSYS-users] help Sloped Surface Radiation Error Type 16a<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Riccardo,<br> It is not usual to get this warning a few times during a simulation, particularly at sunup or sundown times and particularly if you are using the simplified algorithms that are needed when only the total horizontal radiation is known. If you are getting the warning a lot then it is worth looking into. One thing to make sure is that you have specified the Type16 simulation start day parameter correctly. If your simulation starts at hour 7393, the value of that parameter should be 308. Also make sure that your "shift" parameter is et correctly. This value is the difference in longitude between the longitude of the location where your weather data comes from and the standard longitude for that time zone. The third thing to check is the output of Type9. Send the outputs of Type9 to a Type65 online plotter and make sure that it is giving you the data you think it should. There are a lot of type9 parameters that allow you to set how the data is stored, whether it is average or instantaneous, etc. Make sure that you are <i>not </i>interpolating the radiation data that you are reading. If none of these checks help then please feel free to send the input file and weather file.<br>Best,<br> David<br> <br><br><span style='font-size:12.0pt;mso-fareast-language:IT'><o:p></o:p></span></p><div><p class=MsoNormal>On 3/6/2013 03:58, Riccardo wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>Hello,</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>I have a problem with Type 16a: </span><span lang=EN-US style='font-family:"Tahoma","sans-serif"'>the total radiation on a vertical slope facing south (45°) is very high, over the solar constant altought the total radiation on horizontal is not so high.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>I only have total horizontal radiation and I’m using Type 9e for the input from wheater data file.</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>My simulation time is 7393-7561 (week 5-11 november 2012)</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>The error in the .log file is:</span><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> </span><o:p></o:p></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>*** Warning at time : 7406.900000</span></i><o:p></o:p></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> Generated by Unit : 2</span></i><o:p></o:p></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> Generated by Type : 16</span></i><o:p></o:p></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> TRNSYS Message 437 : The total radiation calculated for one of the surfaces has exceeded the solar constant. The component solar quantities (beam and diffuse) have been adjusted such that the sum is equal to the solar constant</span></i><o:p></o:p></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> Reported information : Sloped Surface Radiation Error</span></i><o:p></o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>Thanks in advance,</span><o:p></o:p></p><p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'> </span><span style='font-size:10.0pt'> </span><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>Riccardo Borsatti</span></b><o:p></o:p></p><p class=MsoNormal><b><i><span style='font-size:7.0pt;font-family:"Tahoma","sans-serif";color:#00B050;mso-fareast-language:IT'>Politecnico di Milano</span></i></b><i><span style='font-size:7.0pt;font-family:"Tahoma","sans-serif";color:#00B050;mso-fareast-language:IT'> – Dipartimento di Energia</span></i><o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>______________________________</span><span style='font-family:"Tahoma","sans-serif";mso-fareast-language:IT'><br></span><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>E-mail: </span><span style='mso-fareast-language:IT'><a href="mailto:riccardo.borsatti@hotmail.com"><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif"'>riccardo.borsatti@hotmail.com</span></a></span><o:p></o:p></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:IT'>Skype: errebi326</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:IT'><br><br><br><o:p></o:p></span></p><pre>_______________________________________________<o:p></o:p></pre><pre>TRNSYS-users mailing list<o:p></o:p></pre><pre><a href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a><o:p></o:p></pre><pre><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a><o:p></o:p></pre></blockquote><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:IT'><br><br><o:p></o:p></span></p><pre>-- <o:p></o:p></pre><pre>***************************<o:p></o:p></pre><pre>David BRADLEY<o:p></o:p></pre><pre>Principal<o:p></o:p></pre><pre>Thermal Energy Systems Specialists, LLC<o:p></o:p></pre><pre>22 North Carroll Street - suite 370<o:p></o:p></pre><pre>Madison, WI 53703 USA<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>P:+1.608.274.2577<o:p></o:p></pre><pre>F:+1.608.278.1475<o:p></o:p></pre><pre><a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre><a href="http://www.tess-inc.com">http://www.tess-inc.com</a><o:p></o:p></pre><pre><a href="http://www.trnsys.com">http://www.trnsys.com</a><o:p></o:p></pre></div></body></html>