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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Dear All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m attempting to quantify the difference between load sizing with DOE-2.2 and other proprietary software, and I’d like to hear others’ opinions about method(s) to determine DOE-2.2 ventilation loads. The archives hold numerous discussions about this issue, but I see no definitive responses and some for which my own opinion differs (e.g. using reports that exclude latent loads). Here’s what I do for a block load approach, which is summarized with an example in the attachment:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Set up one multi-zone system for the building so that the LS and SV/SS reports are easy to cross-reference<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Define the HDD and CDD, adjust design day schedules, settings/inputs, etc., as needed. The remaining steps assume all inputs are 100% accurate.<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>3)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Run the simulation<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>4)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Document the peak building loads from the LS-C report, both the Design Day and Standard Reports (internal and/or envelope loads only)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>5)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Document the peak system loads from the SS-J report, again for the Design Day and Standard Reports (system-level peak loads, including ventilation)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>6)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>Take the worst-case differences between these reports, as illustrated in the attachment (Note: other reports provide the same maximums shown in the SS-J Standard Report, such as SS-I, SS-D, etc., but the SS-J provides both Design Day and Standard versions).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The issue that I see with this approach is that the LS-C and SS-J peaks do not necessarily occur at the same time, so to be technically accurate, one would need to use hourly reports to parse out envelope and internal loads for the hours corresponding to the SS-J peaks. The above would be an estimate, but I believe it to be about as close as one could get within the SIM file. I would appreciate any feedback or comments. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
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</v:shape><![endif]--><![if !vml]><span style='mso-ignore:vglayout;position:absolute;z-index:251659264;margin-left:-10px;margin-top:12px;width:82px;height:94px'><img width=82 height=94 src="cid:image004.png@01CBD1B7.1BD782C0" alt=" " v:shapes="_x0000_s1026"></span><![endif]><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in;text-indent:27.0pt'><b><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'>DAKOTA KELLEY </span></b><b><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black'><o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:.5in;text-indent:27.0pt'><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'>Project Designer | Energy Analyst<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> </span><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'>Office: 214.744.6199 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> Cell: 214.280.3825<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> Fax: 214.744.0770</span><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> </span><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'><a href="http://www.teliospc.com/"><span style='color:blue'>http://www.teliospc.com </span></a> 3535 Travis St. Suite 115<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'><a href="mailto:dakotak@teliospc.com"><span style='color:blue'>dakotak@teliospc.com</span></a></span><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> </span><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'>Dallas, TX 75204</span><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Franklin Gothic Book","sans-serif";color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:#3333FF'>| MEP ENGINEERING · ENERGY MODELING · LEED CONSULTATION · COMMISSIONING |</span><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:#3333FF'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:FranklinGothic-BookCnd'><o:p> </o:p></span></b></p><p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:gray'>CONFIDENTIALITY NOTICE: This email is intended only for the use of the individual or entity to which it is addressed, <o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:gray'>And may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:gray'>are not the intended recipient, please email the sender immediately, and delete this email from all computers. Any <o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:gray'>distribution or other use is strictly prohibited. Copyright © 2011 Telios Corporation.<o:p></o:p></span></p><p class=MsoNormal style='text-align:justify;text-justify:inter-ideograph'><span style='font-size:8.0pt;font-family:"Franklin Gothic Book","sans-serif";color:gray'><o:p> </o:p></span></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>