<html><body bgcolor="#FFFFFF"><div>Confirmed. The formulation is IAM = 1 - b0 S - b1 S^2</div><div><br></div><div>The "more" button next to the parameter includes this information if you forget again.</div><div><br></div><div>Jeff</div><div><br>Sent from my iPad</div><div><br>On Mar 11, 2011, at 8:33 AM, Fred Betz <<a href="mailto:fbetz@aeieng.com">fbetz@aeieng.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><div class="WordSection1"><p class="MsoNormal">All,<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">It’s been a little while since I have modeled a solar thermal array. <o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Parameters 10 and 11 of Type 539 Flat Plate collector correspond to the opposite values on the SRCC sheets.<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">For example the IAM on the Vitosol 100 panel is -0.100(S) and -0.215(S) for the IAM equation (S)=1/cos(theta)-1<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Therefore the IAM inputs for parameters 10 and 11 are: 0.1 and 0.215. <o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Please confirm. <o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Fred<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"><o:p> </o:p></p><table class="MsoNormalTable" border="0" cellpadding="0" width="474" style="width:355.5pt"><tbody><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;color:#660000;text-transform:uppercase">Fred Betz</span></b><b><span style="font-size:9.0pt;color:#333333"> </span></b><span style="font-size:9.0pt;color:#333333">PhD., LEED AP <br></span><span style="font-size:10.0pt;color:#333333;text-transform:uppercase">Sustainable Systems Analyst</span><span style="font-size:9.0pt;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;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;color:#660000">AEI</span></b><span style="font-size:9.0pt;color:#333333"> | AFFILIATED ENGINEERS, INC. <br>5802 Research Park Blvd. | Madison, WI 53719<br><br></span><span style="font-size:9.0pt;color:#660000">P: 608.236.1175 | F: 608.238.2614</span><span style="font-size:9.0pt;color:#333333"> <br></span><span style="font-size:9.0pt;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;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;color:#333333"> <o:p></o:p></span></p></td></tr></tbody></table><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"><o:p> </o:p></p></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>TRNSYS-users mailing list</span><br><span><a href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a></span><br><span><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a></span><br></div></blockquote></body></html>