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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Just a detail to add, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If you have any layer turn off, turn it on
for the radiance calculation and once completed turn it back on for the Apache
calc, otherwise you ll see an error message. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Michael<o:p></o:p></span></font></p>
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10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Rashmi Sonal<br>
<b><span style='font-weight:bold'>Sent:</span></b> 17 August 2009 19:41<br>
<b><span style='font-weight:bold'>To:</span></b> Hammad, Fawwaz;
bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Dimming
Lights ( IES-VE)</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>In Radiance (in the
appropriate rooms):</span></font><font size=2 color=black><span lang=EN-GB
style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>1. Set appropriate
properties for the glazing, walls, ceilings and floors. Take care with the
Radiance glazing parameter 'transmissivity', which is not the same as
transmittance. Radiance provides a utility for converting between the two. The
transmittance should be set to match the normal incidence light transmittance
from the glazing manufacturer. Apply a factor for the frame (Radiance doesn't
do this automatically).</span></font><font size=2 color=black><span lang=EN-GB
style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>2. Create daylight
sensors.</span></font><font size=2 color=black><span lang=EN-GB
style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>3. Run the 'Apache'
daylight simulation to create the illuminance (.ill) file.</span></font><font
size=2 color=black><span lang=EN-GB style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
lang=EN-GB style='font-size:11.0pt;color:black'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>In Apache View:</span></font><font
size=2 color=black><span lang=EN-GB style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>1. Set up an
appropriate formula profile to control electrical lighting as a function
of working plane daylight illuminance e1 (note that e2 is not currently
available). Create weekly or annual profiles using this daily profile, as
appropriate. An example profile is given in the ApPro User Guide (and other
manuals):</span></font><font size=2 color=black><span lang=EN-GB
style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:3.0pt;margin-right:0cm;margin-bottom:
0cm;margin-left:1.0cm;margin-bottom:.0001pt'><font size=2 color=black
face=Arial><span style='font-size:11.0pt;font-family:Arial;color:black'>ramp(e1,0,1,500,.4)
a formula suitable for applying as a dimming profile controlling lighting gain
as a function of available daylight. It modulates the lighting gain as a
function of the illuminance on the working plane, e1. The value of the profile
falls from 1 at zero illuminance to 0.4 at illuminance 500 lux, thereafter
remaining constant at this value. The value 0.4 (which you should set as
appropriate) represents the fraction of the room’s lighting gain which is
not subject to daylight control. The illuminance e1 must be computed using the
link to Radiance.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>Use different formulae
as necessary to cater for conditions in different rooms.</span></font><font
size=2 color=black><span lang=EN-GB style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>2. Apply this profile as
a dimming profile in the room or rooms.</span></font><font size=2 color=black><span
lang=EN-GB style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>3. Run ApacheSim with
the Radiance link turned on.</span></font><font size=2 color=black><span
lang=EN-GB style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:11.0pt;font-family:Arial;color:black'>4. View lighting gains
(turn on the 'sensible internal gains breakdown' output group in the ApacheSim
dialog) and e1 values in <st1:place w:st="on">Vista</st1:place>.</span></font><font
size=2 color=black><span lang=EN-GB style='font-size:11.0pt;color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=1 color=black face=Arial><span style='font-size:8.0pt;font-family:Arial;
color:black'>Rashmi Sonal, LEED AP</span></font><font color=navy><span
lang=EN-GB style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=1 color=black face=Arial><span style='font-size:8.0pt;font-family:Arial;
color:black'>Environmental Designer<br>
Computational and Simulation Analysis (CoSA)<br>
<a href="http://www.burohappold.com" title="http://www.burohappold.com/">www.burohappold.com</a></span></font><font
color=navy><span lang=EN-GB style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=1 color=black face=Arial><span style='font-size:8.0pt;font-family:Arial;
color:black'>Tel: (+1) 212 616 0285</span></font><font color=navy><span
lang=EN-GB style='color:navy'><o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Hammad, Fawwaz<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, August 16, 2009 3:32
AM<br>
<b><span style='font-weight:bold'>To:</span></b> bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] Dimming Lights
( IES-VE)</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-GB
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Century Gothic"><span
style='font-size:10.0pt;font-family:"Century Gothic";color:black'>Dear all,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Century Gothic"><span
style='font-size:10.0pt;font-family:"Century Gothic";color:black'>Does anyone
have an idea to place a dimming light(s) in an IES-VE model? The artificial
light has to supplement the available day lighting to achieve (500 Lux ) in the
space. The dimming light has to be linked to the Apache Sim, so that the
light electricity consumption will show up in the simulation results. Your
step-by-step guidance is highly appreciated. Many thanks<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Century Gothic"><span
style='font-size:10.0pt;font-family:"Century Gothic";color:black'><o:p> </o:p></span></font></p>
<p style='margin:0cm;margin-bottom:.0001pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Best Regards,<o:p></o:p></span></font></p>
<p style='margin:0cm;margin-bottom:.0001pt'><font size=3 color=black
face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color=black face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:black;font-weight:bold'>Fawwaz
Hammad</span></font></b><font color=black><span lang=EN-GB style='color:black'>
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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