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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'>Alex,<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'>Sorry to take a little while to respond. You are correct that the medium office reference building has a gas furnace and electric reheat. We actually received some opposite industry feedback from what you heard. We heard that installing gas at the terminal level (vs. on the roof at the RTU for the central furnace) for reheat wouldn’t be done for a building of that size – that installing electric reheat would be simpler and, therefore, more common. Same for hydronic reheat, especially if the central heating wasn’t hydronic. I’m curious if your colleague’s answer would change depending on the size of the building.<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'>This highlights one of the difficulties of creating one-size-fits-all reference buildings – there are a lot of different opinions out there! That said, if there is a large consensus against having electric reheat in the medium office, we would consider changing it whenever any future modifications are released. Unfortunately, I can’t make any promises about a timeline for that right now.<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'>Anyone else feel like chiming in for the most appropriate system type? For your “reference,” the medium office building is three stories and about 53,000 sf total.<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'>Kristin<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'>P.S. You’re welcome, and I’m glad you’ve found the reference buildings to be a valuable resource.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='color:#1F497D'>***********************************************************************<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Kristin M. Field<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Mechanical Engineer<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Electricity, Resources, and Building Systems Integration Center<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>National Renewable Energy Laboratory<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>1617 Cole Blvd., MS RSF 202<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Golden, CO 80401<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>303.384.7376 phone<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>303.630.2055 fax<o:p></o:p></span></p></div><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"'> Alex Krickx [mailto:akrickx@seriousmaterials.com] <br><b>Sent:</b> Tuesday, May 24, 2011 3:24 PM<br><b>To:</b> bldg-sim@lists.onebuilding.org<br><b>Cc:</b> Field, Kristin<br><b>Subject:</b> Medium-Office HVAC question<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hello,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>First- thanks for the reference buildings! They are a great resource.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I had a question about the HVAC system that is in both the ‘Post 1980’ and ‘New 2004’ Medium Office Reference building (IDFs attached). Does the HVAC system have a gas hook-up for the furnace (item coil:heating:gas) and then use electricity for the reheat (item coil:heating:electric)? I asked a colleague of mine about this, and he said “You would never build a job with gas available on-site and electric reheat, even in the 80s”. My background is more on Building Envelope and also simulation/software more than it is in Mechanical Systems, so I don’t know one way or the other. I was hoping that you could shed some light on the system that was selected.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We’re hoping to use the system as a baseline to investigate window retrofits, and pick the HVAC system that we would most likely encounter in existing buildings. Any information you can provide would be much appreciated.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks in advance,<o:p></o:p></p><p class=MsoNormal>Alex Krickx<o:p></o:p></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;color:#262F13'>Alex Krickx, LEED AP<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;color:gray'>Building Energy Specialist<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;color:#1F497D'><img width=121 height=42 id="Picture_x0020_1" src="cid:image001.jpg@01CC1BB0.C752ACE0" alt="email_sig"></span><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;color:#1F497D'>1250 Elko Dr, Sunnyvale, CA 94089<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;color:#1F497D'>(t) 408.541.8124<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;color:gray'><o:p> </o:p></span></p><p class=MsoNormal><b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'>Warning:</span></i></b><i><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> The information contained in this e-mail may be privileged attorney-client communications or attorney work product and/or proprietary and confidential. If the reader of this message is not the intended recipient then you have received it in error and any review, distribution or copying of this message is prohibited and you are to notify us immediately by reply e-mail and delete the original message immediately.</span></i><span style='color:#1F497D'><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><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"'> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Field, Kristin<br><b>Sent:</b> Thursday, September 30, 2010 2:07 PM<br><b>To:</b> bldg-sim@lists.onebuilding.org<br><b>Subject:</b> [Bldg-sim] Reference Buildings v1.3_5.0 available on Website<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The U.S. DOE Commercial Reference Buildings have been updated to version 1.3_5.0 and posted on the following Website:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><a href="http://www1.eere.energy.gov/buildings/commercial_initiative/reference_buildings.html">http://www1.eere.energy.gov/buildings/commercial_initiative/reference_buildings.html</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>As with the previous release, there are 3 vintages of 16 different building types modeled in 16 U.S. climates (3 x 16 x 16 = 768). Users can download:<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='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>All 768 EnergyPlus 5.0 input files (.idf format)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>All 768 EnergyPlus table output files (.htm format)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>All 48 “Scorecard” spreadsheets for each building type in each vintage, summarizing input and output details<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Zip file of the 16 TMY2 weather files used (.epw format)<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>List of changes in models between versions 1.3_5.0 and 1.2_4.0<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Table of EUIs [kBtu/sf/yr] for all models in each vintage<o:p></o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo2'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>Archived versions of previous releases for above files<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>We appreciate all the valuable feedback we’ve received from users of these models. Much of it has been incorporated into the changes between versions.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Kristin Field<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>***********************************************************************<o:p></o:p></p><p class=MsoNormal>Kristin M. Field<o:p></o:p></p><p class=MsoNormal>Engineer II - Mechanical<o:p></o:p></p><p class=MsoNormal>Electricity, Resources, and Building Systems Integration Center<o:p></o:p></p><p class=MsoNormal>National Renewable Energy Laboratory<o:p></o:p></p><p class=MsoNormal>1617 Cole Blvd., MS 5202<o:p></o:p></p><p class=MsoNormal>Golden, CO 80401<o:p></o:p></p><p class=MsoNormal>303.384.7376 phone<o:p></o:p></p><p class=MsoNormal>303.384.7540 fax<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>