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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='color:#1F497D'>Dakota,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I use the same method. Sometimes LS-B is swapped with LS-C if I am trying to solve for the whole building. <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I have backed out the calculations for a known amount of outside air and it was very close to being what one would expect for the OA load. It was 75 CFM at 96/77, which cooling to a dewpoint of 51 degF takes about 6.9 KBTU/H. The LS-B showed 12.73 KBTU/H and the space the unit served showed 19.82 KBTU/H in the SS-A report. The difference being 7.1 KBTU/H.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The issues you bring up about the peaks not occurring at the same time does seem to leave some error in the method, but this is as close to solving for ventilation load that I have figured out. Maybe someone else has a spot on approach, or there is a report that we are missing?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Also, this is solving for load not consumption. If one wanted to know the energy consumption due to the ventilation load that would be another task. Have you figured out a way to tackle this one? <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Replace LS-B with data from LS-E and replace SS-J with data from SS-A, then factor in unit inefficiencies?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='color:#1F497D'>Joe Fleming<o:p></o:p></span></b></p><p class=MsoNormal><i><span style='font-size:10.0pt;color:#333333'>E.I., LEED AP BD+C, BEMP<o:p></o:p></span></i></p><p class=MsoNormal><i><span style='font-size:10.0pt;color:#333333'>Mechanical Engineer II<o:p></o:p></span></i></p><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='color:#006363'>TLC Engineering for Architecture<br></span></b><b><span style='font-size:10.0pt;color:#006363'>Your 2030 Challenge Partner</span></b><b><span style='color:#006363'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>800 Fairway Drive, Suite 250<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>Deerfield Beach, FL 33441-1816<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p></div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:9.0pt;color:#333333'>phone: </span><span style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p></td><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-9096</span><span style='font-size:10.0pt;color:#1F497D'><o:p></o:p></span></p></td></tr><tr><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:9.0pt;color:#333333'>fax: </span><span style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p></td><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-9296</span><span style='font-size:10.0pt;color:#1F497D'><o:p></o:p></span></p></td></tr><tr><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:9.0pt;color:#333333'>direct: </span><span style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p></td><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>954-418-4591</span><span style='font-size:10.0pt;color:#1F497D'><o:p></o:p></span></p></td></tr><tr><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal align=right style='text-align:right'><span style='font-size:9.0pt;color:#333333'>website: </span><span style='font-size:9.0pt;color:#555555'><o:p></o:p></span></p></td><td valign=bottom style='padding:0in 0in 0in 0in'><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><a href="http://www.tlc-engineers.com/">www.tlc-engineers.com</a><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><a href="http://www.tlc-engineers.com/"><span style='text-decoration:none'><img border=0 width=700 height=49 id="_x0000_i1025" src="cid:image001.gif@01CBD1C9.48364920" alt="http://www.tlc-engineers.com/images/TLC_Sig_Loc_Block.gif"></span></a><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='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><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Dakota Kelley<br><b>Sent:</b> Monday, February 21, 2011 12:04 PM<br><b>To:</b> equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] Ventilation Load Opinions<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><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 lfo2'><![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 lfo2'><![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 lfo2'><![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 lfo2'><![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 lfo2'><![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 lfo2'><![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:1;margin-left:-10px;margin-top:12px;width:82px;height:94px'><img width=82 height=94 src="cid:image005.png@01CBD1C9.48364920" 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'> <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/">http://www.teliospc.com </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">dakotak@teliospc.com</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 |<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'><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'><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'><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'><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'><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>