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<DIV><BR>Maybe you can create a hourly report in eQUEST including HVAC system and thermal zone as variable types to check the real conditions of the HVAC systems. </DIV>
<DIV> </DIV>
<DIV>The hourly results series I always pick up are as follow</DIV>
<DIV> </DIV>
<DIV>total central heat coil output</DIV>
<DIV>toal central cool coil output</DIV>
<DIV>total system supply air flow</DIV>
<DIV>total system return air flow and,</DIV>
<DIV>ratio of outside air to total supply air.</DIV>
<DIV> </DIV>
<DIV>I think the hourly report is very useful for troubleshootng specially for unexpected cooling or heating loads.</DIV>
<DIV> </DIV>
<DIV>HTH</DIV>
<DIV> </DIV>
<DIV>Shaojie</DIV>
<DIV> </DIV>
<DIV>--- On <B>Wed, 9/17/08, Doug Maddox <I><DougM@TWGI.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">From: Doug Maddox <DougM@TWGI.com><BR>Subject: Re: [Equest-users] High space heating values<BR>To: "Eric O'Neill" <elo@MichaelsEngineering.com>, "Xavier García Casals" <xavier.garcia@aiguasol.coop><BR>Cc: equest-users@lists.onebuilding.org<BR>Date: Wednesday, September 17, 2008, 2:21 PM<BR><BR>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I have done a comparison between DOE2.1 and DOE2.2 for an office building with a boiler and chiller serving a VAV air handler. Heating and cooling loads were almost identical between the two (as listed in the SS-A reports). Boiler gas consumption was about 10% lower for DOE2.2.</SPAN></FONT></DIV>
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<DIV><FONT face=Arial color=navy size=1><SPAN style="FONT-SIZE: 9pt; COLOR: navy; FONT-FAMILY: Arial">Doug</SPAN></FONT></DIV></DIV>
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<P class=MsoNormal><B><FONT face=Tahoma color=black size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma"> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Eric O'Neill<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, September 17, 2008 10:47 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Xavier García Casals<BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> equest-users@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Equest-users] High space heating values</SPAN></FONT><FONT color=black><SPAN style="COLOR: windowtext"></SPAN></FONT></DIV></DIV>
<P class=MsoNormal><FONT face="Times New Roman" color=black size=3><SPAN style="FONT-SIZE: 12pt"> </SPAN></FONT></DIV>
<P class=MsoNormal><FONT face=Calibri color=#1f497d size=2><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri">Our infiltration values and schedules are both set the same. Would you mind elaborating on what you mean by calculation method? </SPAN></FONT></DIV>
<P class=MsoNormal><FONT face=Calibri color=#1f497d size=2><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri"> </SPAN></FONT></DIV>
<P class=MsoNormal><FONT face=Calibri color=#1f497d size=2><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri">We’ve tried to analyze the loading to see if the heating calculation is the same; however report sheet LS-D from each program is for a specific hour of a day and of course the peak load happens on different days at different times of the year which means you’re comparing red delicious apples to granny smiths. We’re going to be parsing the 8760 data from the hourly reports at some point to see if we can’t figure out if the internal loads are different, if a specific shell component is yielding significant losses, or if the whole building is just being calculated differently. I was just hoping someone might have some insight into what’s going on and could point me in the right direction. </SPAN></FONT></DIV>
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<P class=MsoNormal><FONT face=Calibri color=#1f497d size=2><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri">Thanks,</SPAN></FONT></DIV>
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<P class=MsoNormal><FONT face=Arial color=#1f497d size=2><SPAN style="FONT-SIZE: 10pt; COLOR: #1f497d; FONT-FAMILY: Arial">Eric</SPAN></FONT><FONT color=#1f497d><SPAN style="COLOR: #1f497d"> </SPAN></FONT><FONT face=Calibri color=#1f497d size=2><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Calibri"></SPAN></FONT></DIV>
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<DIV style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Tahoma color=black size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: Tahoma"> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Xavier García Casals<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, September 17, 2008 3:44 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Eric O'Neill<BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> equest-users@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Equest-users] High space heating values</SPAN></FONT></DIV></DIV></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" color=black size=3><SPAN style="FONT-SIZE: 12pt">Did you have a look at infiltration values, schedules and calculation method (effects of outside T and V)?. Since Std.90.1 does not fix this values both programes could be using different defaults with a significant impact on heating demand.<BR><BR>En/na Eric O'Neill ha escrit: </SPAN></FONT></DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" color=black size=3><SPAN style="FONT-SIZE: 12pt">Good evening all, </SPAN></FONT></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" color=black size=3><SPAN style="FONT-SIZE: 12pt">So we’re beginning the transition from VDOE (DOEv2.1e) to eQuest (DOEv2.2), and we noticed that eQuest tended to result in higher space heating requirements. We have attempted to reconcile the difference, but even when we set two baseline buildings as closely as possible in their respective program - setting as many details the same as we could - we still couldn’t get similar space heating results. Most of electric consumptions were close enough, however the space heating section results indicated about a 40% more heating in eQuest than in VDOE. The eQuest model is showing about 0.67 therms/square foot for something similar to an ASHRAE baseline (although it’s not exactly) which seems high. </SPAN></FONT></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" color=black size=3><SPAN style="FONT-SIZE: 12pt">In a similar fashion, I’m working on a NAPA autoparts store, which, as most know, are extremely simple. My output there is about 0.76 therms/square foot. I built it to the dimensions that they gave me, however I set all the components to the ASHRAE 90.1 standard and left the remainder as defaults. </SPAN></FONT></DIV>
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<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman" color=black size=3><SPAN style="FONT-SIZE: 12pt">Has anyone else experienced this? </SPAN></FONT></DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><I><FONT face=Garamond color=green size=3><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 12pt; COLOR: green; FONT-STYLE: italic; FONT-FAMILY: Garamond">Eric O'Neill</SPAN></FONT></I></B> <BR><FONT face=Garamond color=gray size=2><SPAN style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Garamond">Mechanical Engineer</SPAN></FONT> <BR><FONT face=Garamond color=gray size=2><SPAN style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Garamond">Energy Division - Michaels Engineering</SPAN></FONT> </DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial color=gray size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">811 Monitor St. Ste 100</SPAN></FONT> <BR><FONT face=Arial color=gray size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">La Crosse</SPAN></FONT><FONT face=Arial color=gray size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">, WI 54603</SPAN></FONT> <BR><FONT face=Arial color=gray size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">v: 608-785-1900 x521</SPAN></FONT> <BR><FONT face=Arial color=gray size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">f: 608-784-2270</SPAN></FONT> <BR><FONT face=Arial color=gray size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial"><A href="mailto:elo@michaelsengineering.com" target=_blank rel=nofollow>elo@michaelsengineering.com</A></SPAN></FONT> <BR><FONT face=Arial color=red size=1><SPAN
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