<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META content="MSHTML 5.50.4926.2500" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=021092623-07082003>Question answered...</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=021092623-07082003></SPAN></FONT> </DIV>
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Jeff Hirsch
[mailto:Jeff.Hirsch@DOE2.com]<BR><B>Sent:</B> Thursday, August 07, 2003 4:17
PM<BR><B>To:</B> Aulbach, John<BR><B>Subject:</B> Re: [bldg-sim] Another DOE-2
question..<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>LS-F (and LS-E), you must remember, list the load
components for a NET heating or cooling load;</FONT></DIV>
<DIV><FONT face=Arial size=2>thus a reduction of lighting load will probably
cause a change in the hours of net heating and cooling</FONT></DIV>
<DIV><FONT face=Arial size=2>load for both the spaces and the whole building ...
thus, when you then look at the occ/equ contributions</FONT></DIV>
<DIV><FONT face=Arial size=2>to the net load, they may change greatly even
though the total occ/equ loads are very close to the same</FONT></DIV>
<DIV><FONT face=Arial size=2>(not exactly as we are talking about net load to
the spaces when some goes out the windows and walls</FONT></DIV>
<DIV><FONT face=Arial size=2>via direct radiation to the surface then conduction
out the other side.)</FONT></DIV>
<DIV><BR>---<BR>Jeff Hirsch<BR>James J. Hirsch & Associates<BR>Building
Performance Analysis Software & Consulting<BR>12185 Presilla
Road<BR>Camarillo, CA 93012-9243 USA<BR>phone: (805)
553-9000<BR>fax: (805) 532-2401<BR>email: <A
href="mailto:Jeff.Hirsch@DOE2.com">Jeff.Hirsch@DOE2.com</A><BR>web: <A
href="http://DOE2.com">http://DOE2.com</A></DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=JAulbach@semprasolutions.com
href="mailto:JAulbach@semprasolutions.com">Aulbach, John</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=bldg-sim@gard.com
href="mailto:bldg-sim@gard.com">bldg-sim@gard.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, August 07, 2003 12:40
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [bldg-sim] Another DOE-2
question..</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2><SPAN class=336003319-07082003>By the way, I
resolved my previous OSA question. Thanks to all who
contributed..</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=336003319-07082003>Same school. A
Base Case and a Retrofit Case.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=336003319-07082003>Base Case is a
central plant with 20 some air units, fixed economizer.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=336003319-07082003>Retrofit Case are
individual Air heat Pumps, WITH economizer. Also a <STRONG>Lighting
Retrofit</STRONG> (same operating hours).</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=336003319-07082003>The
<STRONG>LS-F</STRONG> report shows a <STRONG>DOUBLING </STRONG>of the
contribution of Occupancy AND Equipment on the load. Same building envelope,
occupancy and equipment density, same operating schedules. And the
program does NOT yet know that the SYSTEM has changed.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=336003319-07082003>Any
ideas?</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=336003319-07082003></SPAN></FONT> </DIV>
<DIV><FONT color=#0000ff size=4><STRONG>John R. Aulbach, PE,
CEM</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG>Project Engineer</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG>Sempra Energy Solutions</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG>555 West Fifth Street</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG>Mail Location 27F3</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG>Los Angeles, CA 90013</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG>Tel: (213) 244-8551 Cell (213)
219-4875</STRONG></FONT></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<P align=left><B><FONT face="Courier New" size=1>"Sempra Energy Solutions is
not the same company as SDG&E/ SoCalGas, the Utilities. Sempra
Energy Solutions is not regulated by the California Publi</FONT><FONT
face="Courier New" size=1>c Utilities Commission, and you do not have to buy
Sempra Energy Solutions products or services to continue to receive quality
regulated service from the Utilities." </FONT></B></P>
<DIV> </DIV><PRE>======================================================
You received this e-mail because you are subscribed
to the BLDG-SIM@GARD.COM mailing list. To unsubscribe
from this mailing list send a blank message to
BLDG-SIM-UNSUBSCRIBE@GARD.COM
</PRE></BLOCKQUOTE><PRE>
======================================================
You received this e-mail because you are subscribed
to the BLDG-SIM@GARD.COM mailing list. To unsubscribe
from this mailing list send a blank message to
BLDG-SIM-UNSUBSCRIBE@GARD.COM
</PRE></BODY></HTML>