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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Eleni, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The simple way of modeling a transpired solar wall is using RETScreen from Natural Resources Canada, which is free. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>RETScreen doesn’t allow all the flexibility described below, but there are multiple types of products in the database so you could use that as a starting point for comparing characteristics. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I am told that it is possible/difficult to model a transpired solar wall in TRNSYS, but I have never tried it. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Good luck. Let us know how it goes. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Fred<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><table class=MsoNormalTable border=0 cellpadding=0 width=474 style='width:355.5pt'><tr><td width=167 valign=top style='width:125.25pt;padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#660000;text-transform:uppercase'>Fred Betz</span></b><b><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'>  </span></b><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'>PhD., LEED AP <br></span><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#333333;text-transform:uppercase'>Sustainable Systems Analyst</span><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'><o:p></o:p></span></p></td><td width=10 valign=top style='width:7.5pt;padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'> <o:p></o:p></span></p></td><td width=283 valign=top style='width:212.25pt;padding:.75pt .75pt .75pt .75pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#660000'>AEI</span></b><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'> | AFFILIATED ENGINEERS, INC.  <br>5802 Research Park Blvd. | Madison, WI  53719<br><br></span><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#660000'>P: 608.236.1175 | F: 608.238.2614</span><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'>  <br></span><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#660000'><a href="mailto:fbetz@aeieng.com"><span style='color:#660000;text-decoration:none'>fbetz@aeieng.com</span></a>  |  </span><b><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#660000'><a href="http://www.aeieng.com/"><span style='color:#660000;text-decoration:none'>www.aeieng.com</span></a></span></b><span style='font-size:9.0pt;font-family:"Calibri","sans-serif";color:#333333'>  <o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> eleni ampatzi [mailto:eampatzi@googlemail.com] <br><b>Sent:</b> Friday, January 14, 2011 6:10 AM<br><b>To:</b> trnsys-users@cae.wisc.edu<br><b>Subject:</b> [TRNSYS-users] modellling a transpired (perforated) solar collector facade<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi All,<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>I am posting this on behalf of a colleague who is looking for a suitable simulation software for a particular research project. <o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal><em>I'm looking for a method of modellling a transpired (perforated) solar collector facade on a large building.  I'd like to look at different variables (e.g. pitch and size of perforations, distance between facade and wall, airflow, meteorological variations, etc) and how this affects the relationship of the collector with the building and any existing/backup heating/cooling services.</em><o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Could anyone reply with a comment on whether TRNSYS is suitable for this modelling exercise and if yes, what are the components required (if any) from the TRNSYS-related libraries or any others available out there?<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Thank you in advance for your replies,<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Regards<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal>Eleni<o:p></o:p></p></div><div><p class=MsoNormal>-- <o:p></o:p></p></div><div><p class=MsoNormal>Dr Eleni Ampatzi<o:p></o:p></p></div><div><p class=MsoNormal>Low Carbon Research Institute,<o:p></o:p></p></div><div><p class=MsoNormal>Welsh School of Architecture<o:p></o:p></p></div><div><p class=MsoNormal>Cardiff University<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div></div></body></html>