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<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Times; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin"><FONT face=Calibri>Matthew,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></SPAN></P>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin"><o:p><FONT face=Calibri> </FONT></o:p></SPAN></P>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><FONT face=Calibri><SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Times; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin">Besides the responses to my message sent to Bldg-Sim, I received two other responses that said the same thing, that during building operation “<STRONG>to move the TSTAT set-points in the warehouse so far out that both heating and cooling would never come on, thus simulating ventilation-only energy”.</STRONG><SPAN style="mso-spacerun: yes"> </SPAN>The baseline system for this building would be 7 (Fan Control: Packaged rooftop variable air volume with reheat; Cooling Type: Chilled Water; Heating Type: Hot Water Fossil Fuel Boiler) </SPAN>
<SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin">that provides heating and cooling so the proposed system must do the same. Changing the system to roof top packaged VAVS with gas furnace heating and DX cooling produced a slightly lower Kbtu/sf/yr but the first and maintenance costs and space requirements would be lower.<SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></SPAN></FONT></P>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin"><o:p><FONT face=Calibri> </FONT></o:p></SPAN></P>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin"><FONT face=Calibri>Varkie</FONT></SPAN></P>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-SIZE: 12pt; mso-bidi-font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin"><FONT face=Calibri><o:p></o:p></FONT></SPAN> </P>
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<P><B>----- Original Message -----</B></P>
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<P> </P></P><B>From</B>: "Matthew W. Higgins" <MWHiggins@bpce.com>
<P></P><B>Date</B>: Monday, June 14, 2010 2:08 pm
<P></P><B>Subject</B>: RE: [Bldg-sim] Warehouse
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<P></P>> Just speaking from one of my previous projects with a large <BR>> warehouse component: <BR>> <BR>> <BR>> - The warehouse was required by the LEED reviewers to be <BR>> heated and cooled <BR>> <BR>> - I could not just simulate ventilation energy in the <BR>> proposed case <BR>> <BR>> - I tried presenting my case and showing the effects of <BR>> conditioning/not conditioning a few variations of proposed and <BR>> baseline, but had to go to an appeal to finish EA c1 because the <BR>> review team appeared to change their request during the re-submittal <BR>> <BR>> - It may have been mentioned before, but if I would have <BR>> known about it from the beginning I would have saved a lot of <BR>
> time/frustration: CIR! <BR>> <BR>> Don’t shoot me for not remembering where it is, but basically it <BR>> allowed me (and the previous CIR recipient) to move the TSTAT set- <BR>> points in the warehouse so far out that both heating and cooling <BR>> would never come on, thus simulating ventilation-only energy. <BR>> Seems like a sneaky work-around, but by doing this in both models <BR>> it’s treated as an allowable measure. <BR>> <BR>> Not sure if this helps out in terms of trying to prove the minimum <BR>> required energy cost savings in any other facility though. <BR>> <BR>> Matthew Higgins, ASHRAE-HBDP, LEED-AP <BR>> Energy Engineer <BR>> <BR>> Bridgers & Paxton Consulting Engineers, Inc. <BR>> 4600-C Montgomery Blvd. NE <BR>> Albuquerque, NM 87109 <BR>> 505-883-4111 <BR>> 505-888-1436 Fax <BR>> mwhiggins@bpce.com <BR>> <BR>> www.bpce.com <BR>> <BR>
> From: bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim- <BR>> bounces@lists.onebuilding.org] On Behalf Of Varkie C Thomas <BR>> Sent: Friday, June 11, 2010 9:53 AM <BR>> To: James Hansen <BR>> Cc: bldg-sim@lists.onebuilding.org <BR>> Subject: Re: [Bldg-sim] Warehouse <BR>> <BR>> The warehouse I am looking at is a rectangular building, just <BR>> under 1.5 million sf and with a ceiling height of 41 ft. Maximum <BR>> occupancy is 50 people mostly in 12,000 sf of administrative <BR>> offices with 10 ft ceiling. Why maintain the entire mass of air <BR>> occupying the space volume in the warehouse at 75 deg F in summer <BR>> and 70 deg F in winter? Can the proposed warehouse model use just <BR>> ventilation and save energy. The percent energy savings for LEED <BR>> certification is enormous. Mechanical floors are heated (to <BR>> prevent pipe freezing) and ventilated. Underground parking is <BR>
> ventilated. Does ASHRAE Std90 for commercial buildings include <BR>> industrial buildings (steel plants)? The definition only mentions <BR>> area and number floors. I might have got it wrong. I have only <BR>> worked on commercial that house people. <BR>> <BR>> <BR>> <BR>> ----- Original Message ----- <BR>> From: James Hansen <JHANSEN@ghtltd.com> <BR>> Date: Thursday, June 10, 2010 7:02 pm <BR>> Subject: RE: [Bldg-sim] Warehouse <BR>> > I�ve modeled a few self storage facilities before, and also had <BR>> > this question. As far as I could tell, System 7 really was the <BR>> > right system for my baseline building, and my condensing furnaces <BR>> > with split system AC units actually had less energy consumption <BR>> > than the chilled water / boiler system. Go figure� <BR>> > <BR>> > <BR>> > <BR>
> > From: bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim- <BR>> > bounces@lists.onebuilding.org] On Behalf Of Varkie C Thomas <BR>> > Sent: Thursday, June 10, 2010 6:41 PM <BR>> > To: Varkie C Thomas <BR>> > Cc: 'bldg-sim@lists.onebuilding.org' <BR>> > Subject: Re: [Bldg-sim] Warehouse <BR>> > <BR>> > <BR>> > <BR>> > Since I got no replies, it was must have been a dumb question. I <BR>> > assume Std90 systems and plant are for the baseline only and for <BR>> > the proposed you can use something else. A proposed packaged VAVS <BR>> > with furnace heating and DX cooling produced nearly the same <BR>> > kbtu/sqft/yr (0.1 difference) as the baseline of chilled water and <BR>> > hot water. <BR>> > <BR>> > <BR>> > The information contained in this communication is confidential, <BR>> > may be privileged, and is intended only for the use of the <BR>
> > addressee. It is the property of GHT Limited. Unauthorized use, <BR>> > disclosure or copying of this communication or any part thereof is <BR>> > strictly prohibited and may be unlawful. If you have received <BR>> > this communication in error, please notify me immediately by <BR>> > return e-mail or by e-mail to ght@ghtltd.com, and destroy this <BR>> > communication and all copies thereof, including all attachments. <BR>> > Thank you. <BR>> > <BR>> > <BR>> > <BR>> > <BR>> </BODY>