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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'>Dear Jonathan,<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'>As you mentioned, the chilled water supply temperature and the condensing for the baseline has been specified, hence, if you are using centrifugal chiller, the COP would be 6.1. The other table is for the statutory requirements for US.<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'>For the proposed model, you should model explicitly on the equipment that will be installed.<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><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards,</span><span style='font-family:"Times New Roman","serif";color:#1F497D;font-weight:normal'><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif";color:#1F497D;font-weight:normal'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Times New Roman","serif";color:#28AAE1'>Joao Wong<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#595959'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#595959'>Arup</span><span lang=EN-GB style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'> </span><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'>Level 5 Festival Walk 80 Tat Chee Avenue Kowloon Tong Kowloon Hong Kong<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif";color:#595959'>t</span><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'> +852 2528 3031 </span><span style='font-family:"Times New Roman","serif";color:#595959'>d</span><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'>+852 2268 3864 <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif";color:#595959'>f</span><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'> +852 2268 </span><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'>3962<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif";color:#595959;font-weight:normal'>www.arup.com<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-GB style='font-size:18.0pt;font-family:Webdings;color:#595959;font-weight:normal'>P</span><span lang=EN-GB style='font-size:8.0pt;font-family:"Calibri","sans-serif";color:#595959;font-weight:normal'> </span><span lang=EN-GB style='font-size:11.0pt;font-family:"Cambria","serif";color:#595959;font-weight:normal'>Please consider the environment before printing this e-mail</span><span lang=EN-GB style='font-size:12.0pt;font-family:SimSun;color:#595959;font-weight:normal'><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><span style='font-family:"Tahoma","sans-serif"'>From:</span><span style='font-family:"Tahoma","sans-serif";font-weight:normal'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] </span><span style='font-family:"Tahoma","sans-serif"'>On Behalf Of </span><span style='font-family:"Tahoma","sans-serif";font-weight:normal'>Mak, Jonathan Wai-Ho<br></span><span style='font-family:"Tahoma","sans-serif"'>Sent:</span><span style='font-family:"Tahoma","sans-serif";font-weight:normal'> Friday, September 23, 2011 14:28<br></span><span style='font-family:"Tahoma","sans-serif"'>To:</span><span style='font-family:"Tahoma","sans-serif";font-weight:normal'> equest-users@lists.onebuilding.org<br></span><span style='font-family:"Tahoma","sans-serif"'>Subject:</span><span style='font-family:"Tahoma","sans-serif";font-weight:normal'> [Equest-users] COP used for simulation to fulfill LEED requirement<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-weight:normal'>Dear all,<o:p></o:p></span></p><p class=MsoNormal><span style='font-weight:normal'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-weight:normal'>I am just simulating a project and wondering what the COP of the baseline model shall be.<o:p></o:p></span></p><p class=MsoNormal><span style='font-weight:normal'>Assuming the chiller is >1055kW, according to ASHRAE 90.1 Appendix G, the chilled water leaving temperature and condensing water entering & leaving temperature has been specified.<o:p></o:p></span></p><p class=MsoNormal><span style='font-weight:normal'>Shall I employ these data to determine the COP by Table 6.8.1J, i.e. COP 6.1?<o:p></o:p></span></p><p class=MsoNormal><span style='font-weight:normal'>Because the chilled water and condensing water temperature in our project is differ from the ASHRAE standard, it seems that the COP cannot be compared in apple-by-apple.<o:p></o:p></span></p><p class=MsoNormal><span style='font-weight:normal'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-weight:normal'>Thanks so much for your kindly help.<o:p></o:p></span></p><p class=MsoNormal><span style='font-weight:normal'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:navy;font-weight:normal'>Thanks</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";font-weight:normal'>,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";font-weight:normal'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:18.0pt;font-family:"CommercialScript BT";color:#1F497D'>Jonathan Mak<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";font-weight:normal'><br>______________________________________________________________________<br>NOTICE: This communication and any attachments ("this message") may contain confidential information for the sole use of the intended recipient(s). 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