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<DIV><SPAN class=674005717-17062005><FONT face=Arial color=#0000ff size=2>Hello
All,</FONT></SPAN></DIV>
<DIV><SPAN class=674005717-17062005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=674005717-17062005><FONT face=Arial color=#0000ff size=2>I was
wondering if there is documentation of the "known bugs" for future
reference. This would be extremely benefical if these problems were posted
somewhere online in order to reference this material in the
future.</FONT></SPAN></DIV>
<DIV><SPAN class=674005717-17062005><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=674005717-17062005><FONT face=Arial color=#0000ff
size=2>Thanks,</FONT></SPAN></DIV>
<DIV><SPAN class=674005717-17062005></SPAN> </DIV>
<DIV><SPAN class=674005717-17062005></SPAN><SPAN class=674005717-17062005><FONT
face=Arial color=#0000ff size=2>Mitch</FONT></SPAN> <o:p></o:p></DIV>
<DIV class=Section1>
<P style="MARGIN-BOTTOM: 6pt"><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Mitchell J. Dec</SPAN></B><BR><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Energy Analyst </SPAN><BR><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">503.345.6283 |<U> <SPAN
style="COLOR: blue"><A
href="mailto:mdec@glumac.com">mdec@glumac.com</A></SPAN></U></SPAN> </P>
<P style="MARGIN-BOTTOM: 6pt"><A href="http://www.glumac.com/"><SPAN
style="TEXT-DECORATION: none; text-underline: none"><IMG height=37
src="file://C:\Documents and Settings\MJD\Application Data\Microsoft\Signatures\./Mitch1_files/image001.gif"
width=339 border=0 v:shapes="_x0000_i1025" NOSEND="1"></SPAN></A><o:p></o:p></P>
<DIV style="MARGIN-BOTTOM: 6pt">
<HR style="WIDTH: 247.5pt" align=left width=330 color=#9acb33 noShade SIZE=2>
</DIV>
<P><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">320 SW Washington, Suite
200</SPAN><BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Portland, OR
97204-2640</SPAN><BR><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">T.
503.227.5280 F. 503.274.7674<BR><BR><B><SPAN
style="COLOR: #333333">Thinking. Inside the
building.</SPAN></B></SPAN><BR><U><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial"><A
href="http://www.glumac.com/"
target=_blank>http://www.glumac.com/</A></SPAN></U> </P></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Mahabir Bhandari
[mailto:bhandari@fenestration.com]<BR><B>Sent:</B> Friday, June 17, 2005 7:57
AM<BR><B>To:</B> BLDG-SIM@gard.com<BR><B>Cc:</B> 'Robin
Mitchell'<BR><B>Subject:</B> [BLDG-SIM] Bug in Window 5.2<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Michael,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Thanks for pointing
this out. This is a known bug in WINDOW5. However, you can still use
WINDOW5 with a little modification. The methodology for calculating inside
heat transfer coefficient was changed in WINDOW5 where radiative and
convective part of film coefficients are calculated separately but the DOE2
output report from WINDOW5 only reports convective part. I saw this bug a long
time back and asked <st1:PersonName w:st="on">Jeff Hirsch</st1:PersonName>
about the clarifications, I would like to share his reply with the
group:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Mahabir
Bhandari<o:p></o:p></SPAN></FONT></P>
<P><FONT face="Times New Roman" size=2><SPAN style="FONT-SIZE: 10pt">Mahabir
Bhandari, Ph.D.<BR>Senior Energy Analyst<BR>Carli Inc.<BR>Tel: (413) 256
4647<BR>Fax: (413) 256 4823<BR><BR><BR><BR><BR>STATEMENT OF
CONFIDENTIALITY<BR>The information contained in this electronic message and
any attachments to this message are intended for the exclusive use of the
addressee(s) and may contain confidential or privileged information. If
you are not the intended recipient, please notify Carli Inc. immediately at
either 413-256-4647 or at <st1:PersonName
w:st="on">home@fenestration.com</st1:PersonName>, and destroy all copies of
this message and any attachments.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The problem is an issue with
Window 5 ouput that eQUEST cannot fix;</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Window 5's ouput for the hrout,
hcout , and (hcrin + hcin) reported</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">at the bottom of the ouput is
inconsistent with the reported u-center.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">For example (here is a W5 ouput
table for u-center)</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Overall and <st1:place
w:st="on"><st1:PlaceType w:st="on">Center</st1:PlaceType> of <st1:PlaceName
w:st="on">Glass Ig</st1:PlaceName></st1:place> U-values (W/m2-K)<BR>Outdoor
Temperature
-17.8 C 15.6 C
26.7 C 37.8
C<BR>Solar WdSpd hcout hrout
hin<BR>(W/m2) (m/s)
(W/m2-K)<BR> 0
0.00 4.00 3.54 2.77 3.63 3.63 3.67
3.67 3.75 3.75 4.11 4.11 <BR><STRONG><B><FONT
face="Courier New"><SPAN style="FONT-FAMILY: 'Courier New'">
0 6.71 <FONT color=red><SPAN
style="COLOR: red">30.84 3.30 3.13</SPAN></FONT> 5.88 <FONT
color=green><SPAN style="COLOR: green">5.88</SPAN></FONT> 5.51
5.51 5.52 5.52 6.22 6.22 </SPAN></FONT></B></STRONG><B><SPAN
style="FONT-WEIGHT: bold"><BR></SPAN></B> 783
0.00 4.00 3.64 2.59 3.63 3.63 3.67
3.67 3.75 3.75 4.11 4.11
<BR> 783 6.71 30.84
3.33 3.08 5.88 5.88 5.51 5.51 5.52 5.52 6.22
6.22</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Where the same glass from W4 would
produce</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Overall and <st1:place
w:st="on"><st1:PlaceType w:st="on">Center</st1:PlaceType> of <st1:PlaceName
w:st="on">Glass Window</st1:PlaceName></st1:place> U-values
(W/m2-C)<BR>Outdoor
Temperature
-17.8 C 15.6 C
26.7 C 37.8
C<BR>Solar WdSpd hcout hrout
hin<BR>(W/m2) (m/s)
(W/m2-C)<BR> 0
0.00 12.25 3.43 8.23 5.10 5.30 4.83 4.98
4.82 4.97 5.33 5.57 <BR><STRONG><B><FONT face="Courier New"><SPAN
style="FONT-FAMILY: 'Courier New'">
0 6.71 <FONT color=red><SPAN
style="COLOR: red">25.47 3.33 8.30</SPAN></FONT> 5.95 <FONT
color=green><SPAN style="COLOR: green">6.31</SPAN></FONT> 5.49
5.76 5.46 5.72 6.13 6.51 </SPAN></FONT></B></STRONG><B><SPAN
style="FONT-WEIGHT: bold"><BR></SPAN></B> 783
0.00 12.25 3.48 8.17 5.09 5.28 4.56 4.66
5.06 5.25 5.43 5.69
<BR> 783 6.71 25.47
3.37 8.27 5.94 6.29 5.34 5.58 5.67 5.97 6.22
6.61</SPAN></FONT><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The three film coefficient should
be input into the FILMS-COND</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">keyword in the GLASS-TYPE-CODE
command. For the above</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">window 4 library entry the values
would be:</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">
FILMS-COND= (25.47, 3.33, 8.30)</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">These values are in agreement with
the window 4 report u-center's in the table, but
the</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">above window 5 value for the last
film coeff is not correct (it does not include both
radiative</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">and convective components) as it
does not allow the reproduction of the reported
u-center's</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">of the
table.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">eQUEST, at this time, does not put
a FILMS-COND keyword into the glass-type-code
command</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">due to this W5 probelm; we will
decide what to do at some point (we were waiting for the W5 group
to</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">fix this problem/bug in their
output)</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">For now you could insert a
films-cond keyword using the first two values reported
by</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">W5 and replacing the third with a
value you calculate to get the right u-center
based</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">upon the glass the the other two
values reported by W5 (or just approx with 8.3,</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">but then LS-D will not be
correct)</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> Mike
Tillou [mailto:miket@etcgrp.com] <BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, June 17, 2005 9:02
AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
BLDG-SIM@gard.com<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B>
[BLDG-SIM] Bug in Window 5.2</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi All,</SPAN></FONT>
<o:p></o:p></P>
<P><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Anyone using Window 5 (any
version) to create custom glazing for DOE2 simulations should be very
careful. There is a bug in the output feature of Window 5 that
incorrectly reports the window film coefficients used to calculate the center
of glass U-value. If you use this data in a DOE 2 simulation the
calculated center of glass U-value may be off by as much as 40%. BE
CAREFUL and check the output reports to verify glazing performance if you are
importing Window 5 performance data. Apparently Window 4 does not have
this problem, it worked fine when I tried it.
</SPAN></FONT><o:p></o:p></P>
<P><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I
have been told that LBNL is aware of the problem but to date has not resolved
the issue. </SPAN></FONT><o:p></o:p></P>
<P><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I
have only heard one side of the story (and would be happy to hear the other)
but it seems like this is another chapter in the ongoing saga of DOE2 vs
Energy Plus. I am not saying this is the case, but it is disturbing to
think that software bugs in publicly funded software are not getting fixed for
political reasons.</SPAN></FONT><o:p></o:p></P>
<P><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Unfortunately those of us trying
to use these tools and can't because of issues like this suffer
most.</SPAN></FONT> <o:p></o:p></P>
<P><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sincerely,</SPAN></FONT>
<o:p></o:p></P>
<P><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Disgruntled Modeler.</SPAN></FONT>
<o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P><B><FONT face=Arial size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Michael Tillou,
PE<BR>etc Group, Inc.<BR><st1:address w:st="on"><st1:Street w:st="on">PO Box
7</st1:Street>, <st1:City w:st="on">Williamstown</st1:City>, <st1:State
w:st="on">MA</st1:State> <st1:PostalCode
w:st="on">01267</st1:PostalCode></st1:address><BR>ph. (413) 458-9870 fx.
(413) 458-9875<BR></SPAN></FONT><BR></B><B><FONT face="Arial Narrow"><SPAN
style="FONT-WEIGHT: bold; FONT-FAMILY: 'Arial Narrow'"> </SPAN></FONT></B><FONT
face=Arial><SPAN style="FONT-FAMILY: Arial"> </SPAN></FONT><o:p></o:p></P><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></PRE><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt"><o:p> </o:p></SPAN></FONT></PRE><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">==================<o:p></o:p></SPAN></FONT></PRE><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">You received this e-mail because you are subscribed <o:p></o:p></SPAN></FONT></PRE><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">to the BLDG-SIM@GARD.COM mailing list. To unsubscribe <o:p></o:p></SPAN></FONT></PRE><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">from this mailing list send a blank message to <o:p></o:p></SPAN></FONT></PRE><PRE><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">BLDG-SIM-UNSUBSCRIBE@GARD.COM<o:p></o:p></SPAN></FONT></PRE></DIV><PRE>
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