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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks Keith,<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'>I think that would be the reason but the program doesn’t allow me to change Altitude, it change back to blank after I input value and leave the box. User-Defined Default Value doesn’t ether (it did work for Latitude and Longitude input). My location in international -or- User-defined.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Yu Liu<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>+8615010414883<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>elaneinside@hotmail.com<o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal align=left style='text-align:left'><b><span style='font-size:10.0pt;font-family:宋体'>发件人<span lang=EN-US>:</span></span></b><span lang=EN-US style='font-size:10.0pt;font-family:宋体'> Keith Swartz [mailto:kswartz@ecw.org] <br></span><b><span style='font-size:10.0pt;font-family:宋体'>发送时间<span lang=EN-US>:</span></span></b><span lang=EN-US style='font-size:10.0pt;font-family:宋体'> 2011</span><span style='font-size:10.0pt;font-family:宋体'>年<span lang=EN-US>7</span>月<span lang=EN-US>12</span>日<span lang=EN-US> 4:59<br></span><b>收件人<span lang=EN-US>:</span></b><span lang=EN-US> </span>刘宇<span lang=EN-US>; equest-users@lists.onebuilding.org<br></span><b>主题<span lang=EN-US>:</span></b><span lang=EN-US> RE: [Equest-users] Problem of design flow rate autosize<o:p></o:p></span></span></p></div></div><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>Hello, Yu,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>The difference may be due to eQUEST’S air density correction based on the elevation of your project location. The auto-calculated value is adjusted for the altitude. The air flow you enter is assumed to be at sea level (standard conditions). If this density correction calculation is causing the difference you see, then changing the elevation to 0 feet should get them to match. To change the elevation, in the Detailed Interface click on “Project & Site” in the upper left, then in the Component Tree on the left side double-click on “Site Data” (4<sup>th</sup> one down from the top). The field for Altitude is near the middle of the Basic Specifications tab.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><div><div><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>________________________________</span><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><ns0:PersonName><span style='color:#1F497D'>Keith Swartz</span></ns0:PersonName><span style='color:#1F497D'>, P.E., LEED AP</span></span><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><br>Energy Engineer / Senior Project Manager<br></span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><ns0:PlaceName><span style='color:#1F497D'>Energy</span></ns0:PlaceName><span style='color:#1F497D'> </span><ns0:PlaceType><span style='color:#1F497D'>Center</span></ns0:PlaceType><span style='color:#1F497D'> of </span><ns0:place><ns0:State><span style='color:#1F497D'>Wisconsin</span><span style='color:#1F497D;font-weight:normal'><br></span><span style='font-weight:normal'></ns0:State></span></ns0:place></span></b><ns0:Street><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><ns0:address><span style='color:#1F497D'>455 Science Drive, Suite 200, </span></ns0:address></ns0:Street></span><ns0:place><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><ns0:City><span style='color:#1F497D'>Madison</span></ns0:City><span style='color:#1F497D'>, </span><ns0:State><span style='color:#1F497D'>WI</span></ns0:State><span style='color:#1F497D'> </span><ns0:PostalCode><span style='color:#1F497D'>53711<br></span></ns0:PostalCode></ns0:place></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Phone: 608.238.8276 x123<br>Fax: 608.238.0523<br><br><b>The Buildings Team</b></span><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p></div><div><p class=MsoNormal align=left style='text-align:left'><i><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Design decisions through energy, economics and emissions analysis.</span></i><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><o:p></o:p></span></p></div><div><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><a href="http://www.ecw.org/Buildings">www.ecw.org/Buildings</a> <o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><br></span><b><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><ns0:place><ns0:PlaceName><span style='color:#1F497D'>Energy</span></ns0:PlaceName><span style='color:#1F497D'> </span><ns0:PlaceType><span style='color:#1F497D'>Center</span></ns0:PlaceType><span style='color:#1F497D'> </span><ns0:PlaceType><span style='color:#1F497D'>University<br></span></ns0:PlaceType></ns0:place></span></b><i><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Your gateway to sustainable design training and online education programs.<br></span></i><span lang=EN-US style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D'><a href="http://www.ecw.org/university/" title="http://www.ecw.org/university/"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>www.ecw.org/university/</span></a></span><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal align=left style='text-align:left'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><span style='font-size:10.0pt;font-family:宋体'>刘宇</span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> [mailto:elaneinside@hotmail.com] <br><b>Sent:</b> Sunday, July 10, 2011 10:34 PM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] Problem of design flow rate autosize<o:p></o:p></span></p></div></div><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Hi<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I’m trying to model baseline system 7 HVAC system using ‘Variable Air Volume’ system with zone HW reheat. When I leave design supply flow blank to let equest auto size, I have 60343 cfm supply flow and 320 unmet heat hour in system summary table. But when I input 60343 cfm in system design flow box and recalculate, then I have 105 unmet hours, and nothing else changed in system summary table. Is that a bug of software or there are some reason I don’t know.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Yu Liu<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>+8615010414883<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><a href="mailto:elaneinside@hotmail.com">elaneinside@hotmail.com</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>