Carol<div><br></div><div>For some reason my space definitions were missing the light-set-point keyword, even though daylight was set to yes. In either case, Jeremy has a good point. Sometimes we lose ourselves in our text files and forget eQUEST has a more intuitive spreadsheet feature !</div>
<div><br></div><div><br></div><div><br><br><div class="gmail_quote">On Thu, Apr 21, 2011 at 1:13 PM, Carol Gardner <span dir="ltr"><<a href="mailto:cmg750@gmail.com">cmg750@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hi Arpan,<br><br>Somewhere it says that if you think you might want to look at daylighting, always check the yes box in the Wizard. Then you will have all the input lines you need. If Jeremy's instructions aren't enough, and you know how to input an .inp deck, then open yours in Wordpad or Notepad and add this string to each space you want to study daylighting in: Pleas note: the numbers are DOE2 defaults and might not match what you want. Also, they were located after the LOCATION = .. line in my .inp deck. Probably doesn't matter, but hey...<br>
<br>
<p><span> </span>DAYLIGHTING<span> </span>= YES</p>
<p><span> </span>LIGHT-REF-POINT1
= ( 39.9, 10, 2.5 )</p>
<p><span>
</span>ZONE-FRACTION1<span> </span>= 0.399</p>
<p><span> </span>LIGHT-SET-POINT1
= 50</p>
<p><span> </span>LTG-CTRL-METHOD1
= DefaultOrSpecified</p>
<p><span>
</span>VIEW-AZIMUTH<span> </span>= 90</p><p>Carol<br></p>
<br><div class="gmail_quote"><div><div></div><div class="h5">On Thu, Apr 21, 2011 at 8:25 AM, Jeremy Poling <span dir="ltr"><<a href="mailto:Jeremy.Poling@transwestern.net" target="_blank">Jeremy.Poling@transwestern.net</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div></div><div class="h5">
<div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">From the help file:</span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<h5>LIGHT-SET-POINT1, LIGHT-SET-POINT2</h5><p>Give the desired illuminance level at LIGHT-REF-POINT1 and LIGHT-REF-POINT2, respectively. Recommended values, which depend on type of activity, occupant age, and other factors, may be found on p. 460ff of the Lighting Handbook, Eighth Edition, 1995, Illuminating Engineering Society of North America. Typical values are shown in <a>Table 28</a>. It is assumed that this lighting level will be produced by the overhead electric lights at full output . These setpoints may be chosen to be lower when the overhead lights provide ambient lighting that is supplemented by task lighting. (The illuminance from task lighting is not included in LIGHT-SET-POINT1 or LIGHT-SET-POINT2.)</p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">The two different keywords allow for two separate control zones within each space/zone defined in the model.</span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Note: you can change this under the “Internal Loads” screen for each zone, either by going to an individual zone or by using the spreadsheet mode – it doesn’t have to be done by editing the INP file.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">If you want to have a place to adjust it easily or to look at parametric analysis of results for different set points, create a global parameter (e.g. “Daylight FC”) of type “Numerical Value” and set it to your current design set point. Then, in either spreadsheet mode or on the daylighting tab for each zone, right click on the “Light Set Point (fc)” value and “Edit/View User Expression”. Type in #PA(“Daylight FC”). Each time you change the value of that global parameter, either in the interface or through a parametric analysis, each system set to use that global parameter will also change.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal"><b><span style="font-size:7.5pt;color:#1F497D">Jeremy R. Poling, PE, LEED AP+BDC</span></b><span style="font-size:11.0pt;color:#1F497D"><br>
<br></span><span style="font-size:11.0pt;color:#1F497D"></span></p><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">From:</span></b><span style="font-size:10.0pt"> <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>Arpan Bakshi<br>
<b>Sent:</b> Thursday, April 21, 2011 10:17 AM<br><b>To:</b> equest-users<br><b>Subject:</b> [Equest-users] Design Light Levels</span></p></div><div><div></div><div><p class="MsoNormal"> </p><p class="MsoNormal">
Hello All</p><div><p class="MsoNormal"> </p></div><div><div><p class="MsoNormal">I am looking through my INP trying to change design light levels for the daylight sensors by keyword if possible. </p></div><div><p class="MsoNormal">
I REALLY don't want to go back into wiz mode !!!</p></div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">Anyone know if there is a keyword for this? Is it somehow set in the PD2, is that why I don't see a foot-candle assignment in the INP?</p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal">Thank you.<br>-- </p><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"> </p></div><div><p><b>Arpan Bakshi</b><i><span> </span></i><span>LEED AP BD+C</span><b></b></p>
</div><p class="MsoNormal"> </p></div></div></div></div></div></div><br></div></div>_______________________________________________<br>
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<br></blockquote></div><font color="#888888"><br><br clear="all"><br>-- <br>Carol Gardner PE<br>
<div></div>
</font></blockquote></div><br><br clear="all"><br>-- <br><div><br></div><div><b><font size="2"><br></font></b></div><div><b><p>Arpan Bakshi<span style="border-collapse:collapse;font-family:arial, sans-serif;font-weight:normal"></span><b style="font-weight:normal"><span style="border-collapse:collapse;font-family:arial, sans-serif;font-weight:normal"><i> </i>LEED AP BD+C</span></b><span style="color:rgb(64, 64, 64);font-size:12px;font-weight:normal"></span></p>
</b></div><br>
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