To: <a href="mailto:equest-users-request@lists.onebuilding.org" target="_blank">equest-users-request@lists.onebuilding.org</a>, <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
Date: Fri, 26 Aug 2011 09:55:13 +0530<br>
Subject: [Equest-users] cooling unmet hour<br><br>Dear Kirti,<br><br>Yes, Pasha has give you the points to look at.<br><br>In
addition to what has been mentioned, it can also happens in
intermittently occupied spaces at the beginning of the cooling/heating
schedule in certain zones.<br>
<br>So need to pay attention to all individual thermal zones <br><br>Anura<br>---------- Forwarded message ----------<br>From: kirti pabrekar <<a href="mailto:arkirtipabrekar@gmail.com" target="_blank">arkirtipabrekar@gmail.com</a>><br>
s<br><br clear="all"><div>dear all, </div><div><br></div><div>while
checking through my simulation reports, i have realized that the the
number of cooling unmet hours for one of my projects is 579 hours. this
far exceeds the tab of allowable 300 hours. can anybody please explain
me the idea behind cooling unmet hours.</div>
<div><br></div><div>any help is greatly appreciated.</div><div><br></div><div>thank you</div>-- <br><font color="#888888"><div>Regards,<br>Ar. Kirti Pramod Pabrekar.</div>
<div>IGBC AP, LEED India, <br>M. Arch,<br>Environmental Planning and Design.</div></font><br><br><div class="gmail_quote">2011/8/27 <span dir="ltr"><<a href="mailto:equest-users-request@lists.onebuilding.org">equest-users-request@lists.onebuilding.org</a>></span><br>
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<br>Today's Topics:<br>
<br>
1. Re: FW: eQuest issues (William Smith)<br>
2. LEED EAp1 baseline problem (???)<br>
3. Re: LEED EAp1 baseline problem (Jenny Zhang)<br>
4. Re: Equest-users Digest, Vol 41, Issue 24 (yashika agarwalla)<br>
5. Re: modeling different t-stat allowable float ranges (Nick Caton)<br>
6. cooling unmet hours (kirti pabrekar)<br>
7. Error in opening file (Mahendra Gooroochurn)<br>
8. Modelling of central AHU and fan coil (Mahendra Gooroochurn)<br>
9. Re: cooling unmet hours (Pasha Korber-Gonzalez)<br>
10. Re: LEED EAp1 baseline problem (???)<br>
11. Re: Low Cooling Loads, Big Cooling Electric Consumption<br>
(Keith Swartz)<br>
12. modeling different t-stat allowable float ranges<br>
(<a href="mailto:Aaron.Powers@jci.com">Aaron.Powers@jci.com</a>)<br>
<br><br>---------- Forwarded message ----------<br>From: William Smith <<a href="mailto:bluestemarchitects@gmail.com">bluestemarchitects@gmail.com</a>><br>To: <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
Date: Thu, 25 Aug 2011 16:17:14 -0500<br>Subject: Re: [Equest-users] FW: eQuest issues<br><div style="word-wrap: break-word;">I also am getting an error message after testing installation. I am using Parallels for Mac. How do I fix this problem?<div>
<br><div>
<span style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; font-size: medium;"><span style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; font-size: medium;"><div style="word-wrap: break-word;">
<div><div style="font-family: Helvetica;">William </div></div><div><br></div></div></span><br></span><br>
</div>
<br></div></div><br><br>---------- Forwarded message ----------<br>From: 何宗翰 <<a href="mailto:tzunghan.ho@gmail.com">tzunghan.ho@gmail.com</a>><br>To: <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
Date: Fri, 26 Aug 2011 09:06:30 +0800<br>Subject: [Equest-users] LEED EAp1 baseline problem<br><div>Hello All,</div>
<div> </div>
<div>I am trying to establish the baseline model for LEED NC 3.0, and have some problem as following:</div>
<div> </div>
<div>1. From ASHRAE 90.1 2007 G3.1.2.8, does it mean that I can simulation the supply airflow rate by </div>
<div> setting MIN-SUPPLY-T & DESIGN-COOL-T have 20 degree difference and let eQUEST to calculate the </div>
<div> supply airflow automatically?</div>
<div>2. My baseline HVAC is system No.8, VAV with PFP boxes, so from G3.1.3.12, the supply air temperature reset must depend on the load, but I can't find this setting option in eQUEST, could anybody tell me how to set that?</div>
<div>3.Because I am not in a LEED project, could anyone send me the LEED NC3.0 "EAp2 Section 1.4 table.xls" to check if there is anything I loss?</div>
<div> </div>
<div> </div>
<div>Thanks in advance, </div>
<div> </div>
<div> </div>
<div>Stan Ho</div>
<br><br>---------- Forwarded message ----------<br>From: Jenny Zhang <<a href="mailto:jenny.zhang@arup.com">jenny.zhang@arup.com</a>><br>To: '何宗翰' <<a href="mailto:tzunghan.ho@gmail.com">tzunghan.ho@gmail.com</a>>, "'<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>'" <<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>><br>
Date: Fri, 26 Aug 2011 10:36:31 +0800<br>Subject: Re: [Equest-users] LEED EAp1 baseline problem<br>
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"><u></u> <u></u></span></p>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0cm 0cm;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;">
<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>
[mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b></span><span style="font-size: 10pt;" lang="JA">何宗翰</span><span style="font-size: 10pt;"><br>
<b>Sent:</b> 2011</span><span style="font-size: 10pt;" lang="JA">年</span><span style="font-size: 10pt;">8</span><span style="font-size: 10pt;" lang="JA">月</span><span style="font-size: 10pt;">26</span><span style="font-size: 10pt;" lang="JA">日</span><span style="font-size: 10pt;">
9:07<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] LEED EAp1 baseline problem<u></u><u></u></span></p>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal">Hello All,<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">I am trying to establish the baseline model for LEED NC
3.0, and have some problem as following:<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">1. From ASHRAE 90.1 2007 G3.1.2.8, does it mean that I
can simulation the supply airflow rate by <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> setting MIN-SUPPLY-T &
DESIGN-COOL-T have 20 degree difference and let eQUEST to calculate the <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> supply airflow automatically?<span style="color: rgb(31, 73, 125);"> </span><span style="color: red;">YES</span><u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">2. My baseline HVAC is system No.8, VAV with PFP boxes, so
from G3.1.3.12, the supply air temperature reset must depend on the load, but I
can't find this setting option in eQUEST, could anybody tell me how to set
that?<span style="color: rgb(31, 73, 125);"> </span><span style="color: red;">you could find
reset setting options on the ‘air side system’>system>cooling>control
and reset.<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal">3.Because I am not in a LEED project, could anyone send me
the LEED NC3.0 "EAp2 Section 1.4 table.xls" to check if there is
anything I loss?<span style="color: rgb(31, 73, 125);"> </span><span style="color: red;">please
see the attached file, also you could down it on LEED online Credit
Resource.<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><span style="color: red;"> <u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
<div>
<p class="MsoNormal">Thanks in advance, <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p>
</div>
<div>
<p class="MsoNormal">Stan Ho<u></u><u></u></p>
</div>
</div>
<font face="monospace">____________________________________________________________<br>
Electronic mail messages entering and leaving Arup business<br>
systems are scanned for acceptability of content and viruses</font></div>
<br><br>---------- Forwarded message ----------<br>From: yashika agarwalla <<a href="mailto:aquarianyashika@gmail.com">aquarianyashika@gmail.com</a>><br>To: <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
Date: Fri, 26 Aug 2011 08:17:07 +0530<br>Subject: Re: [Equest-users] Equest-users Digest, Vol 41, Issue 24<br>Dear All , <div><br></div><div>I wanted to know the basic science & working principles behind eQuest energy simulation and also woyld be extremely grateful if I could be helped with any literature on the same , if any at all.</div>
<div><br></div><div>Rgds, </div><div>Yashika<br><br><div class="gmail_quote"><br></div></div>
<br><br>---------- Forwarded message ----------<br>From: "Nick Caton" <<a href="mailto:ncaton@smithboucher.com">ncaton@smithboucher.com</a>><br>To: "Dana Etherington" <<a href="mailto:Dana.Etherington@crbusa.com">Dana.Etherington@crbusa.com</a>>, <<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>><br>
Date: Thu, 25 Aug 2011 22:59:42 -0500<br>Subject: Re: [Equest-users] modeling different t-stat allowable float ranges<br><div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Hi Dana,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">I’d advise opening a space under the system(s) in question, right click and read up on the help entries for the following two inputs:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><img src="cid:image001.png@01CC633F.D04CB800" width="732" height="626"></span><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><u></u> <u></u></span></p><p class="MsoNormal"><span style="color: rgb(31, 73, 125);">~Nick<u></u><u></u></span></p><div><p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><img src="cid:image002.jpg@01CC633F.D04CB800" alt="cid:489575314@22072009-0ABB" width="119" height="37"></span><b><span style="color: rgb(45, 77, 94);"><u></u><u></u></span></b></p>
<p class="MsoNormal"><b><span style="color: rgb(45, 77, 94);"><u></u> <u></u></span></b></p><p class="MsoNormal"><b><span style="font-size: 12pt; color: rgb(45, 77, 94);">NICK CATON, P.E.</span></b><b><span style="font-size: 12pt; color: rgb(45, 77, 94);"><u></u><u></u></span></b></p>
<p class="MsoNormal"><span style="font-size: 7.5pt; color: rgb(204, 153, 0);">SENIOR ENGINEER<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size: 7.5pt; color: rgb(204, 153, 0);"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(45, 77, 94);">Smith & Boucher Engineers</span><span style="font-size: 7.5pt; font-family: "Times New Roman","serif"; color: rgb(204, 153, 0);"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(45, 77, 94);">25501 west valley parkway, suite 200<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size: 10pt; color: rgb(45, 77, 94);">olathe, ks 66061<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(45, 77, 94);">direct <a href="tel:913.344.0036" value="+19133440036" target="_blank">913.344.0036</a><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size: 10pt; color: rgb(45, 77, 94);">fax <a href="tel:913.345.0617" value="+19133450617" target="_blank">913.345.0617</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><a href="http://www.smithboucher.com" title="blocked::www.smithboucher.com" target="_blank"><span style="font-size: 10pt;">www.smithboucher.com</span></a></span><u><span style="font-size: 10pt; color: blue;"> </span></u><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><u></u> <u></u></span></p><div><div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Dana Etherington<br>
<b>Sent:</b> Thursday, August 25, 2011 3:30 PM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] modeling different t-stat allowable float ranges<u></u><u></u></span></p>
</div></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">We are interested in modeling an ECM where we allow the temperature to float between a larger range (70-74 or 70-76) versus a tighter range (say 71-73). I would like to compare variations in building energy consumption for a few different t-stat ranges. The model itself was built previously, so I’m hoping this might just involve changing a couple numbers. Has anyone done this? Any input would help. Thanks,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">-Dana <u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><b><span style="font-size: 9pt; color: rgb(89, 89, 89);">Mr. Dana Etherington, E.I.T., LEED AP BD+C </span></b><span style="font-size: 9pt; color: rgb(89, 89, 89);">| <b>CRB </b>| One Kendall Square Ste B2202 | Cambridge, MA 02139</span><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p>
<p class="MsoNormal"><b><span style="font-size: 9pt; color: rgb(89, 89, 89);">Main:</span></b><span style="font-size: 9pt; color: rgb(89, 89, 89);"> <a href="tel:617-475-3050" value="+16174753050" target="_blank">617-475-3050</a> <b>| Direct:</b> <a href="tel:617-475-3061" value="+16174753061" target="_blank">617-475-3061</a> | <b>Mobile:</b> <a href="tel:617-583-3009" value="+16175833009" target="_blank">617-583-3009</a> | <b>Fax:</b> <a href="tel:617-475-3052" value="+16174753052" target="_blank">617-475-3052</a> | <b>Ext: 6061</b><u></u><u></u></span></p>
<p class="MsoNormal"><b><span style="font-size: 9pt; color: rgb(89, 89, 89);">Email:</span></b><span style="font-size: 9pt; color: rgb(89, 89, 89);"> </span><span style="font-size: 9pt; color: rgb(89, 89, 89);"><a href="mailto:dana.etherington@crbusa.com" target="_blank"><span style="color: rgb(89, 89, 89);">dana.etherington@crbusa.com</span></a> | <a href="http://www.crbusa.com/" target="_blank"><span style="color: rgb(89, 89, 89);">www.crbusa.com</span></a><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(89, 89, 89);"><u></u> <u></u></span></p><p class="MsoNormal"><u></u> <u></u></p></div></div><br><br>---------- Forwarded message ----------<br>From: kirti pabrekar <<a href="mailto:arkirtipabrekar@gmail.com">arkirtipabrekar@gmail.com</a>><br>
To: <a href="mailto:equest-users-request@lists.onebuilding.org">equest-users-request@lists.onebuilding.org</a>, <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>Date: Fri, 26 Aug 2011 09:55:13 +0530<br>
Subject: [Equest-users] cooling unmet hours<br><br clear="all"><div>dear all, </div><div><br></div><div>while checking through my simulation reports, i have realized that the the number of cooling unmet hours for one of my projects is 579 hours. this far exceeds the tab of allowable 300 hours. can anybody please explain me the idea behind cooling unmet hours.</div>
<div><br></div><div>any help is greatly appreciated.</div><div><br></div><div>thank you</div>-- <br><div>Regards,<br>Ar. Kirti Pramod Pabrekar.</div>
<div>IGBC AP, LEED India, <br>M. Arch,<br>Environmental Planning and Design.<br></div>
<div> </div>
<div><i>...Green is a commitment...not a competition...</i></div><br>
<br><br>---------- Forwarded message ----------<br>From: Mahendra Gooroochurn <<a href="mailto:m.gooroochurn@gmail.com">m.gooroochurn@gmail.com</a>><br>To: <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
Date: Fri, 26 Aug 2011 10:01:22 +0400<br>Subject: [Equest-users] Error in opening file<br>Hi,<br><br>I have a project where I need to simulate a central air handling unit feeding the fan coils directly.<br>I am using the default air handler in eQuest to supply the fan coil units, which works nicely when I configure the model and run the simulation.<br>
But when I close the project and open it again, it would cause eQuest to crash with the following message:<br><br>" V1 = (0,0) V2 = (100,0) V3 = (100,100) V4 = (0,100) ..<br><br>MIN-FLOW-RATIO in default zone has expression evaluation error: Invalid BDL Table Indexes."<br>
<br>Anybody got this type of error message. Grateful if somebody can help me out.<br><br>Regards,<br>Kishan<br>
<br><br>---------- Forwarded message ----------<br>From: Mahendra Gooroochurn <<a href="mailto:m.gooroochurn@gmail.com">m.gooroochurn@gmail.com</a>><br>To: <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
Date: Fri, 26 Aug 2011 11:10:22 +0400<br>Subject: [Equest-users] Modelling of central AHU and fan coil<br>Hi,<br><br>Any of you have modelled a central AHU system which delivers fresh air to fan coil units.<br>Can you please describe how to go about setting the systems.<br>
<br>Thanks,<br>Kishan<br><br>
<br><br>---------- Forwarded message ----------<br>From: Pasha Korber-Gonzalez <<a href="mailto:pasha.pkconsulting@gmail.com">pasha.pkconsulting@gmail.com</a>><br>To: kirti pabrekar <<a href="mailto:arkirtipabrekar@gmail.com">arkirtipabrekar@gmail.com</a>><br>
Date: Fri, 26 Aug 2011 02:18:09 -0600<br>Subject: Re: [Equest-users] cooling unmet hours<br><div>Hi Kirti,</div>
<div> </div>
<div>essentially, the rooms that are asking for cooling energy are not getting it for some reason...this is the reason (or input) that you need to find to be the culprit of not providing enough energy or not letting the cooling energy get to the spaces that are asking for cooling.</div>
<div> </div>
<div>Start by going to the SS-R reports after you see the unmet hours in your BEPS/BEPU reports. Find which zones/systems are the culprit of the issue. Next go to the SS-F reports for each zone that is being undercooled and this will help you determine what also might be happening.</div>
<div> </div>
<div>Hope this is a start to getting you the info you are looking for.</div>
<div> </div>
<div>Cheers,</div>
<div>Pasha<br><br></div>
<div class="gmail_quote">On Thu, Aug 25, 2011 at 10:25 PM, kirti pabrekar <span dir="ltr"><<a href="mailto:arkirtipabrekar@gmail.com" target="_blank">arkirtipabrekar@gmail.com</a>></span> wrote:<br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote"><br clear="all">
<div>dear all, </div>
<div><br></div>
<div>while checking through my simulation reports, i have realized that the the number of cooling unmet hours for one of my projects is 579 hours. this far exceeds the tab of allowable 300 hours. can anybody please explain me the idea behind cooling unmet hours.</div>
<div><br></div>
<div>any help is greatly appreciated.</div>
<div><br></div>
<div>thank you</div>-- <br><font color="#888888">
<div>Regards,<br>Ar. Kirti Pramod Pabrekar.</div>
<div>IGBC AP, LEED India, <br>M. Arch,<br>Environmental Planning and Design.<br></div>
<div> </div>
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<br><br>---------- Forwarded message ----------<br>From: 何宗翰 <<a href="mailto:tzunghan.ho@gmail.com">tzunghan.ho@gmail.com</a>><br>To: Jenny Zhang <<a href="mailto:jenny.zhang@arup.com">jenny.zhang@arup.com</a>><br>
Date: Fri, 26 Aug 2011 18:28:24 +0800<br>Subject: Re: [Equest-users] LEED EAp1 baseline problem<br><div>Thank you, Jenny, your advise is really helpful.</div>
<div> </div>
<div>But I still can't solve the question 3.</div>
<div> </div>
<div>ASHRAE 90.7 2007, G3.1.3.12: The air temperature for cooling shall be reset highter by 5 under the minimum cooling load conditions.</div>
<div> </div>
<div>My question is: I can reset the temperature depend on outside temperature or inside temperature, but I don't know how to reset temperature depend on "load".<br><br>Thank you for your help!</div>
<div> </div>
<div class="gmail_quote">Jenny Zhang <span dir="ltr"><<a href="mailto:jenny.zhang@arup.com" target="_blank">jenny.zhang@arup.com</a>></span> 於 2011年8月26日上午10:36 寫道：<br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote">
<div vlink="purple" link="blue" lang="EN-US">
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125); font-size: 11pt;"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b></span><span style="font-size: 10pt;" lang="JA">何宗翰</span><span style="font-size: 10pt;"><br>
<b>Sent:</b> 2011</span><span style="font-size: 10pt;" lang="JA">年</span><span style="font-size: 10pt;">8</span><span style="font-size: 10pt;" lang="JA">月</span><span style="font-size: 10pt;">26</span><span style="font-size: 10pt;" lang="JA">日</span><span style="font-size: 10pt;"> 9:07<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] LEED EAp1 baseline problem<u></u><u></u></span></p></div>
<div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal">Hello All,<u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal">I am trying to establish the baseline model for LEED NC 3.0, and have some problem as following:<u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal">1. From ASHRAE 90.1 2007 G3.1.2.8, does it mean that I can simulation the supply airflow rate by <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> setting MIN-SUPPLY-T & DESIGN-COOL-T have 20 degree difference and let eQUEST to calculate the <u></u><u></u></p></div></div>
<div>
<p class="MsoNormal"> supply airflow automatically?<span style="color: rgb(31, 73, 125);"> </span><span style="color: red;">YES</span><u></u><u></u></p></div>
<div>
<p class="MsoNormal">2. My baseline HVAC is system No.8, VAV with PFP boxes, so from G3.1.3.12, the supply air temperature reset must depend on the load, but I can't find this setting option in eQUEST, could anybody tell me how to set that?<span style="color: rgb(31, 73, 125);"> </span><span style="color: red;">you could find reset setting options on the ‘air side system’>system>cooling>control and reset.<u></u><u></u></span></p>
</div>
<div>
<p class="MsoNormal">3.Because I am not in a LEED project, could anyone send me the LEED NC3.0 "EAp2 Section 1.4 table.xls" to check if there is anything I loss?<span style="color: rgb(31, 73, 125);"> </span><span style="color: red;">please see the attached file, also you could down it on LEED online Credit Resource.<u></u><u></u></span></p>
</div>
<div>
<div>
<p class="MsoNormal"><span style="color: red;"> <u></u><u></u></span></p></div>
<div>
<p class="MsoNormal"><u></u> <u></u></p></div>
<div>
<p class="MsoNormal">Thanks in advance, <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal">Stan Ho<u></u><u></u></p></div></div></div><font face="monospace">____________________________________________________________<br>Electronic mail messages entering and leaving Arup business<br>systems are scanned for acceptability of content and viruses</font></div>
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<br><br>---------- Forwarded message ----------<br>From: Keith Swartz <<a href="mailto:kswartz@ecw.org">kswartz@ecw.org</a>><br>To: "<a href="mailto:steinvor@msu.edu">steinvor@msu.edu</a>" <<a href="mailto:steinvor@msu.edu">steinvor@msu.edu</a>>, "<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>" <<a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>><br>
Date: Fri, 26 Aug 2011 08:51:45 -0500<br>Subject: Re: [Equest-users] Low Cooling Loads, Big Cooling Electric Consumption<br><div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">Federico,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">Does the proposed building have more insulation and does the building have a fair amount of internal heat gains? Adding insulation to a building with even a moderate amount of internal loads can cause a net annual energy penalty, even though summer and winter peak loads are reduced. The effect is more pronounced if the HVAC system does not have an economizer. Search the archives for a more complete explanation.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"><u></u> <u></u></span></p><div><p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);">________________________________</span><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 10pt;"><u></u><span style="color: rgb(31, 73, 125);">Keith Swartz</span><u></u><span style="color: rgb(31, 73, 125);">, P.E., LEED AP</span></span><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);"><br>Energy Engineer / Senior Project Manager<br></span><b><span style="font-size: 10pt;"><u></u><span style="color: rgb(31, 73, 125);">Energy</span><u></u><span style="color: rgb(31, 73, 125);"> </span><u></u><span style="color: rgb(31, 73, 125);">Center</span><u></u><span style="color: rgb(31, 73, 125);"> of </span><u></u><u></u><span style="color: rgb(31, 73, 125);">Wisconsin</span><span style="color: rgb(31, 73, 125); font-weight: normal;"><br>
</span><span style="font-weight: normal;"><u></u></span><u></u></span></b><u></u><span style="font-size: 10pt;"><u></u><span style="color: rgb(31, 73, 125);">455 Science Drive, Suite 200, </span><u></u><u></u></span><u></u><span style="font-size: 10pt;"><u></u><span style="color: rgb(31, 73, 125);">Madison</span><u></u><span style="color: rgb(31, 73, 125);">, </span><u></u><span style="color: rgb(31, 73, 125);">WI</span><u></u><span style="color: rgb(31, 73, 125);"> </span><u></u><span style="color: rgb(31, 73, 125);">53711<br>
</span><u></u><u></u></span><span style="font-size: 10pt; color: rgb(31, 73, 125);">Phone: <a href="tel:608.238.8276%20x123" value="+16082388276" target="_blank">608.238.8276 x123</a><br>Fax: <a href="tel:608.238.0523" value="+16082380523" target="_blank">608.238.0523</a><br>
<br></span><b><span style="font-size: 10pt; color: rgb(31, 73, 125);">The Buildings Team</span></b><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p></div><div><p class="MsoNormal"><i><span style="font-size: 10pt; color: rgb(31, 73, 125);">Design decisions through energy, economics and emissions analysis.</span></i><span style="color: rgb(31, 73, 125);"><u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style="font-size: 10pt; color: rgb(31, 73, 125);"><a href="http://www.ecw.org/Buildings" target="_blank"><span style="color: blue;">www.ecw.org/Buildings</span></a> <u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="color: rgb(31, 73, 125);"><br></span><b><span style="font-size: 10pt;"><u></u><u></u><span style="color: rgb(31, 73, 125);">Energy</span><u></u><span style="color: rgb(31, 73, 125);"> </span><u></u><span style="color: rgb(31, 73, 125);">Center</span><u></u><span style="color: rgb(31, 73, 125);"> </span><u></u><span style="color: rgb(31, 73, 125);">University<br>
</span><u></u><u></u></span></b><i><span style="font-size: 10pt; color: rgb(31, 73, 125);">Your gateway to sustainable design training and online education programs.<br></span></i><span style="color: rgb(31, 73, 125);"><a href="http://www.ecw.org/university/" title="http://www.ecw.org/university/" target="_blank"><span style="font-size: 10pt; color: blue;">www.ecw.org/university/</span></a></span><span style="font-size: 11pt; color: rgb(31, 73, 125);"><u></u><u></u></span></p>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;"><p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:steinvor@msu.edu" target="_blank">steinvor@msu.edu</a> [mailto:<a href="mailto:steinvor@msu.edu" target="_blank">steinvor@msu.edu</a>] <br>
<b>Sent:</b> Thursday, August 25, 2011 12:09 AM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] Low Cooling Loads, Big Cooling Electric Consumption<u></u><u></u></span></p>
</div><p class="MsoNormal"><u></u> <u></u></p><p> Hello All:<br><br>In a recent project, my model doesn't have a designed HVAC system, so I'm modeling my proposed the same as the baseline. Baseline system is #8 (chilled water) with FPF's, climate zone 1. Even though I'm getting lower cooling loads for the proposed building, the electric load corresponding to cooling the building is higher than the baseline. Fans and pumps consumption is increasing this value. What can be causing this, how can this value be reduced? <br>
<br>Thanks!<u></u><u></u></p><p>Federico <u></u><u></u></p></div></div><br><br>---------- Forwarded message ----------<br>From: <a href="mailto:Aaron.Powers@jci.com">Aaron.Powers@jci.com</a><br>To: <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
Date: Fri, 26 Aug 2011 09:19:03 -0500<br>Subject: [Equest-users] modeling different t-stat allowable float ranges<br>
<br><font face="sans-serif" size="2">Hi Dana,</font>
<br>
<br><font face="sans-serif" size="2">Is your t-stat range a cooling or heating
range? If your system involves both heating and cooling, you will
need a setpoint temperature for both. Other than unitary systems,
your heating and cooling setpoints cannot be the same because the t-stat
will tell its controllers that it both needs to heat and cool to reach
setpoint. In eQuest, I believe the defaults are around 68 F for heating
and 74 F for cooling, which is typical for new systems.</font>
<br>
<br><font face="sans-serif" size="2">As far as letting the temperature float,
there are a couple of ways to do this:</font>
<br><font face="sans-serif" size="2">1. </font>
<br><font face="sans-serif" size="2">Setpoints can be scheduled with a BAS.
Usually, this includes an occupied setpoint and an unoccupied setpoint
setback. For example, a 74 F occupied cooling setpoint and an 82
F cooling setpoint setback after 7 pm. In eQUEST, this can be done
by editing the thermostat schedules. I'm guessing this is not what
you're looking for, but I'm throwing it out there just in case :)</font>
<br><font face="sans-serif" size="2">2.</font>
<br><font face="sans-serif" size="2">Most HVAC controllers are proportional
(P) controllers, which means that they control the HVAC equipment in a
proportional response to the difference between the sensed temperature
and the setpoint. An inherent property of proportional controllers
is that they cannot hit their setpoint exactly, but there will be some
offset. How much this offset is depends on the gain of the controller
when it is programmed by a technician. There is usually a trade-off
between offset and response time. In eQUEST, the offset is called
"Throttling Range" and is accessible in the Basic Specifications
Tab of the Zones dialog. So, a t-stat can be programmed to have a
greater offset or throttling range and the temperature will float more
around each setpoint. For example, if you increase the throttling
range to 4 R in eQUEST with a cooling setpoint of 74 F, the thermostat
will signal 100% response at 76 F and 0 response at 72 F. This will
result in an air temperature which floats more than a system with a throttling
range of 2 R. You may see building occupants complain more about
inconsistent temperatures with an offset of 4 R vs 2 R. Higher end
facilities will sometimes be equipped with a proportional-integral-differential
(PID) thermostat, which eliminates the offset of the proportional controller.
To model a PID controller in eQUEST, you simply reduce the throttling
range to a minimal value.</font>
<br>
<br><font face="sans-serif" size="2">Keep in mind too that when doing a simulation
like this, eQUEST is an hourly steady-state simulation engine with the
ability to approximate some transience. In reality, HVAC controllers
sample at a much faster rate than once per hour, and their response times
are much greater than instantaneous. Also, unfortunately, you cannot use
this as an ECM for LEED as they require equivalent t-stat setpoints in
baseline and proposed cases. Good luck!<br>
</font>
<table>
<tbody><tr>
<td bgcolor="white"><font color="#808080" face="Verdana" size="2"><b>Aaron Powers</b></font><font size="3">
</font>
</td></tr><tr>
<td bgcolor="white"><font color="#808080" face="Verdana" size="1"><b>Johnson
Controls | Building Efficiency</b></font><font size="3"> </font>
</td></tr><tr>
<td bgcolor="white"><font color="#808080" face="Verdana" size="1">Energy Solutions
Engineer</font><font size="3"> </font>
</td></tr><tr>
<td bgcolor="white"><font color="#808080" face="Verdana" size="1">6935 Appling
Farms Pkwy # 112, Memphis, TN 38133</font><font size="3"> </font>
</td></tr><tr>
<td bgcolor="white"><font color="#808080" face="Verdana" size="1"><a href="tel:901%20359%204255" value="+19013594255" target="_blank">901 359 4255</a></font><font size="3">
</font>
</td></tr><tr>
<td bgcolor="white"><a href="mailto:aaron.powers@jci.com" target="_blank"><font color="blue" face="Verdana" size="1"><u>aaron.powers@jci.com</u></font></a><font size="3">
</font></td></tr></tbody></table>
<br>
<p><font size="3"> </font><font face="Calibri" size="2">We are interested
in modeling an ECM where we allow the temperature to float between a larger
range (70-74 or 70-76) versus a tighter range (say 71-73). I would like
to compare variations in building energy consumption for a few different
t-stat ranges. The model itself was built previously, so I’m hoping this
might just involve changing a couple numbers. Has anyone done this? Any
input would help. Thanks,</font>
<br><font face="Calibri" size="2"> </font>
<br><font face="Calibri" size="2">-Dana </font>
<br><font face="Calibri" size="2"> </font>
<br><font color="#5f5f5f" face="Arial" size="1"><b>Mr. Dana Etherington, E.I.T.,
LEED AP BD+C </b>| <b>CRB </b>| One Kendall Square Ste B2202 | Cambridge,
MA 02139</font>
<br><font color="#5f5f5f" face="Arial" size="1"><b>Main:</b> <a href="tel:617-475-3050" value="+16174753050" target="_blank">617-475-3050</a> <b>|
Direct:</b> <a href="tel:617-475-3061" value="+16174753061" target="_blank">617-475-3061</a> | <b>Mobile:</b> <a href="tel:617-583-3009" value="+16175833009" target="_blank">617-583-3009</a> | <b>Fax:</b> <a href="tel:617-475-3052" value="+16174753052" target="_blank">617-475-3052</a>
| <b>Ext: 6061</b></font>
<br><font color="#5f5f5f" face="Arial" size="1"><b>Email:</b> </font><a href="mailto:dana.etherington@crbusa.com" target="_blank"><font color="#5f5f5f" face="Arial" size="1"><u>dana.etherington@crbusa.com</u></font></a><font color="#5f5f5f" face="Arial" size="1">
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