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AGi32 is a good bet. It has a relatively user-friendly, CAD-like interface. It'll give you virtually any outputs you want and it allows you to import any luminaire data from the major luminaire manufacturers. Having used it for the first time a few months ago, I'd say you can learn the basics within a few hours. To figure out if direct illumination "leaving the windows", you can set up a grid of points on the window surface for which it will tell you the illuminance. You can download a free demo that'll give you five runs or so. Here's a fairly complete list of other lighting analysis software:<br><br>http://www.eere.energy.gov/buildings/tools_directory/subjects.cfm/pagename=subjects/pagename_menu=materials_components/pagename_submenu=lighting_systems<br><br>Liam O'Brien<br><br><blockquote><hr>From: prabhat.greenbuildings@gmail.com<br>To: bldg-sim@lists.onebuilding.org<br>Date: Tue, 19 Feb 2008 09:14:07 +0530<br>Subject: [Bldg-sim] Interiors lighting<br><br>
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<div><font face="Arial" size="2">Deal all</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">I need to model an interiors llighting (luminaire
arrangement) for an office building and have to ensure that no direct beam
illumination goes out of the glazing.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">any suggestion on the best tool/method to do
it.</font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2">Regards</font></div>
<div><font face="Arial" size="2"></font> </div>
<div>Prabhat Barnwal<br>Kalpakrit Sustainable Environments Pvt. Ltd.<br>Corp.
Office: 610-A, Udyog Vihar, Phase V, Gurgaon 122016, Haryana, India<br>Tel:
+91.124.4309490-92 Fax: +91.124.4309493<br>Cell: +91.9898663086<br>E-mail : <a href="mailto:prabhat@kalpakrit.com">prabhat@kalpakrit.com</a><br><font face="Arial" size="2">;</font></div>
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