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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>What about building an internal wall to represent the light shelf?
Would this have an effect on the daylight calculation algorithm in
eQUEST? It takes into account reflection off of internal walls
right? Paul, if you’re saying the effects of light shelves are
primarily aesthetic and comfort-related, would you make any modifications in
eQUEST to account for having them in the space, or is the amount of daylight
eQUEST calculates essentially unaffected by the light shelf?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><b><i><span
style='font-size:10.0pt;color:#1F497D'>Jay Keazer, EI</span></i></b><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;color:#1F497D'>Energy Engineer</span><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;color:#1F497D'>TME, Inc.</span><span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;color:#1F497D'>2039 N Green Acres Road</span><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;color:#1F497D'>Fayetteville, AR 72703</span><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:7.5pt;color:#1F497D'>ph 479.521.8634</span><span
style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:7.5pt;color:#1F497D'>fax 479.521.1014<o:p></o:p></span></p>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><u><span
style='font-size:7.5pt;color:blue'><a href="mailto:email@tmecorp.com">jkeazer@tmecorp.com</a></span></u><u><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></u></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
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 style='margin:0in;margin-bottom:.0001pt'><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>Paul
Erickson<br>
<b>Sent:</b> Friday, November 21, 2008 2:45 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org; Amol Mehta; Timothy Howe; Demba
Ndiaye<br>
<b>Subject:</b> Spam:Re: [Equest-users] Light Shelves<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'>Mehta/Demba,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'>Before taking the approach of
increasing "the proportion of your space that benefits from daylighting as
a result of the deeper light penetration allowed by the shelves," you
should use a detailed daylight simulation program to determine if any extra
credit should be attributed to your chosen light shelves. Though
conceptual renderings and many designers tend to suggest there is great deep
daylight benefit, most daylighting experts suggest the real benefits to
be the reduction in direct solar radiation striking occupants and the
fact that the bounced light dispels shadows/contrast areas on the ceiling near
the window, enhancing the overall ambient lighting of the space.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'>Regards,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'><br>
Paul<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p>
</div>
<div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Paul Erickson</span><span
style='font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Sustainable Team
Leader</span><span style='font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Affiliated
Engineers, Inc</span><span style='font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'><a href="http://www.aeieng.com/"><span
style='font-size:10.0pt'>www.aeieng.com</span></a><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>608.236.1112</span><span
style='font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>303.859.7523 - c</span><span
style='font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span lang=NL
style='font-size:13.5pt;font-family:Webdings;color:green'>P</span><span
lang=NL style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:navy'>
</span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:green'>P</span><span lang=NL style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:green'>lease consider the environment before printing this</span><span
lang=NL style='font-size:10.0pt;font-family:"Verdana","sans-serif";color:navy'>
</span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:green'>message.</span><span style='font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p>
</div>
</div>
</div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><span
style='font-family:"Tahoma","sans-serif"'><br>
<br>
>>> "Demba Ndiaye" <Demba.Ndiaye@uoit.ca> 11/20/2008
4:45 PM >>><br>
One possibility is to model daylighting as usual and increase the<br>
proportion of your space that benefits from the daylighting as a result<br>
of the deeper light penetration allowed by the shelves.<br>
<br>
_____________<br>
Demba Ndiaye<br>
<br>
-----Original Message-----<br>
From: equest-users-bounces@lists.onebuilding.org<br>
[mailto:equest-users-bounces@lists.onebuilding.org] On Behalf Of Howe,<br>
Timothy<br>
Sent: Thursday, November 20, 2008 5:21 PM<br>
To: Amol Mehta; equest-users@lists.onebuilding.org<br>
Subject: Re: [Equest-users] Light Shelves<br>
<br>
Not possible as of yet. <br>
<br>
-----Original Message-----<br>
From: equest-users-bounces@lists.onebuilding.org<br>
[mailto:equest-users-bounces@lists.onebuilding.org] On Behalf Of Amol<br>
Mehta<br>
Sent: Thursday, November 20, 2008 5:17 PM<br>
To: equest-users@lists.onebuilding.org<br>
Subject: [Equest-users] Light Shelves<br>
<br>
Hi <br>
<br>
I am trying to model Light Shelves in E-Quest for day lighting. Can you<br>
please help me on this? Thanks<br>
<br>
<br>
Amol Mehta | Mechanical Engineer | P2S Engineering, Inc.<br>
T 562 497 2999 | F 562 497 2990 | M 858 354 6250 5000 East Spring<br>
Street, 8th Floor, Long Beach, CA 90815 -----Original Message-----<br>
From: equest-users-bounces@lists.onebuilding.org<br>
[mailto:equest-users-bounces@lists.onebuilding.org] On Behalf Of<br>
equest-users-request@lists.onebuilding.org<br>
Sent: Thursday, November 20, 2008 12:04 PM<br>
To: equest-users@lists.onebuilding.org;<br>
equest-users@lists.onebuilding.org;<br>
equest-users@lists.onebuilding.org; equest-users@lists.onebuilding.org<br>
Subject: Equest-users Digest, Vol 8, Issue 22<br>
<br>
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Today's Topics:<br>
<br>
1. PIU vs. VAV in eQuest (Matthew Dubrovich)<br>
2. Re: PIU vs. VAV in eQuest (Kevin Madison)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Thu, 20 Nov 2008 09:06:50 -0700<br>
From: "Matthew Dubrovich" <mdubrovich@emcengineers.com><br>
Subject: [Equest-users] PIU vs. VAV in eQuest<br>
To: <equest-users@lists.onebuilding.org><br>
Message-ID:<br>
<216F285E03BAC04B9F6E6F17D4C7405E121B6684@VS6.EXCHPROD.USA.NET><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
For those that are on both the BLDG-SIM and this list, I apologize for<br>
the repost...<br>
<br>
<br>
<br>
<br>
<br>
Question on PIU vs. VAV systems in eQuest...<br>
<br>
<br>
<br>
If a PIU system has only SVAV boxes and all other parameters are<br>
identical, does the PIU act like a VAV in eQuest? Only changing the<br>
system type in my model seems to have a significant impact on energy<br>
usage and I can't track down why that is. The difference is significant<br>
enough that with App. G System 7 VAV w/RH, the choice between PIU and<br>
VAV has an effect on the number of points. Any thoughts would be<br>
appreciated.<br>
<br>
<br>
<br>
<br>
<br>
Thanks,<br>
<br>
<br>
<br>
Matt<br>
<br>
<br>
<br>
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Message: 2<br>
Date: Thu, 20 Nov 2008 09:00:21 -0800<br>
From: Kevin Madison <kevinjm5000@yahoo.com><br>
Subject: Re: [Equest-users] PIU vs. VAV in eQuest<br>
To: Matthew Dubrovich <mdubrovich@emcengineers.com><br>
Cc: equest-users@lists.onebuilding.org<br>
Message-ID: <492597A5.50208@yahoo.com><br>
Content-Type: text/plain; charset=windows-1252; format=flowed<br>
<br>
Matt -<br>
You may be observing the result of the different default for<br>
"THERMOSTAT-TYPE" for zones served by each system. The default for
VAVS<br>
is "REVERSE-ACTION" while it is "PROPORTIONAL" for PIU.
Take a look in<br>
the DOE-2 documentation for descriptions of each of these and how this<br>
property affects ZONE terminal unit and SYSTEM operation.<br>
- Kevin<br>
<br>
Kevin Madison<br>
Madison Engineering PS<br>
Seattle WA<br>
<br>
<br>
Matthew Dubrovich wrote:<br>
><br>
> For those that are on both the BLDG-SIM and this list, I apologize for<br>
<br>
> the repost?<br>
><br>
> Question on PIU vs. VAV systems in eQuest?<br>
><br>
> If a PIU system has only SVAV boxes and all other parameters are <br>
> identical, does the PIU act like a VAV in eQuest? Only changing the <br>
> system type in my model seems to have a significant impact on energy <br>
> usage and I can?t track down why that is. The difference is <br>
> significant enough that with App. G System 7 VAV w/RH, the choice <br>
> between PIU and VAV has an effect on the number of points. Any <br>
> thoughts would be appreciated.<br>
><br>
> Thanks,<br>
><br>
> Matt<br>
><br>
> ----------------------------------------------------------------------<br>
> --<br>
><br>
> _______________________________________________<br>
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