<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hey,</div><div><br></div><div>He's saying that you need to make sure that the curve boiler-fPLR gives you a constant efficiency. As far as I remember, the default atmospheric curve from equest is like this.</div><div>Don't be confused by "flat". A flat efficiency curve is when you plot efficiency=f(PLR). In equest, it should be a curve that is y=x</div><div><br></div><div>Look at the curve you used.</div><div><br></div><div>Best,</div><div>Julien</div><div><br>Envoyé de mon iPhone</div><div><br>Le 24 mai 2015 à 11:27, "赵永青" <<a href="mailto:503271081@qq.com">503271081@qq.com</a>> a écrit :<br><br></div><blockquote type="cite"><div><div><span style="line-height: 1.5;">I get the energy model comments from LEED reviewer as following:</span></div><div><br></div><div><span style="font-family: 微软雅黑, 'MS Sans Serif', sans-serif; font-size: 13px; line-height: normal; widows: auto; background-color: rgb(255, 237, 196);">The narrative response indicates that the Baseline boiler has been modeled utilizing operating performance curves and a boiler HIR of 1.25. However, since the boiler operation HIR is based on the performance curves, the HIR is less than 1.25 in the part-load condition, which is inappropriate. Revise the Baseline boilers to include a flat efficiency of 80% for all part-loads. Provide eQuest input files or screen shots verifying the boiler efficiency has been modeled as required.</span></div><div><span style="font-family: 微软雅黑, 'MS Sans Serif', sans-serif; font-size: 13px; line-height: normal; widows: auto; background-color: rgb(255, 237, 196);"> </span><545E22AD@FA528147.9F996155></div><div><span style="widows: auto; background-color: rgb(255, 237, 196);"><font face="微软雅黑, MS Sans Serif, sans-serif"><span style="font-size: 13px; line-height: normal;">However, I can not understand it very much. The minimum equipment efficiency requirement(80 % Et) of Ashrae 90.1-2007 should be base on full load condition.Why the LEED reviewer raise such a question?Any insight is appreciate!!</span></font></span></div><div><span style="widows: auto; background-color: rgb(255, 237, 196);"><font face="微软雅黑, MS Sans Serif, sans-serif"><span style="font-size: 13px; line-height: normal;"><br></span></font></span></div><div><span style="widows: auto; background-color: rgb(255, 237, 196);"><font face="微软雅黑, MS Sans Serif, sans-serif"><span style="font-size: 13px; line-height: normal;">Thanks</span></font></span></div><div><div style="color:#909090;font-family:Arial Narrow;font-size:12px">------------------</div><div style="font-size:14px;font-family:Verdana;color:#000;"><div>
<div><font color="#3366ff" size="2"><strong>Yongqing Zhao</strong></font></div>
<div><font size="2"><strong><font color="#006600">Changsha Green Building & Energy Saving Technology CO.,LTD<br></font></strong><font color="#3366ff">NO.438,Shaoshan Road,Changsha,Hunan,China<br>Telephone:13574805636</font></font></div>
<div><font color="#3366ff" size="2">Email:zhaoyongqing1987@<a href="http://126.com">126.com</a></font></div>
<div><font size="2"> <span><a href="mailto:503271081@qq.com">503271081@qq.com</a></span></font> </div></div></div></div><div> </div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Equest-users mailing list</span><br><span><a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a></span><br><span>To unsubscribe from this mailing list send a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a></span><br></div></blockquote></body></html>