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<DIV><SPAN class=567433413-22022006><FONT face=Arial color=#0000ff size=2>Hi
Joe,</FONT></SPAN></DIV>
<DIV><SPAN class=567433413-22022006><FONT face=Arial color=#0000ff size=2>I am
very happy about the fast response to my problem. As you said I will modify the
10 missing hours for Melbourne directly in the IWEC new file. I will also get a
new disk from ASHRAE.</FONT></SPAN></DIV>
<DIV><SPAN class=567433413-22022006><FONT face=Arial color=#0000ff size=2>Many
thanks to you, Dru Crawley and the others !!!</FONT></SPAN></DIV>
<DIV><SPAN class=567433413-22022006><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=567433413-22022006><FONT face=Arial color=#0000ff
size=2>Laurier Nichols</FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Message d'origine-----<BR><B>De :</B> BLDG-SIM@GARD.COM
[mailto:BLDG-SIM@GARD.COM]<B>De la part de</B> Joe
Huang<BR><B>Envoyé :</B> 21 février, 2006 19:07<BR><B>À :</B>
BLDG-SIM@GARD.COM<BR><B>Objet :</B> [BLDG-SIM] Problems with IWEC weather
files packed for DOE-2 (was Problem with Melbourne weather
file)<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>After looking into Laurier's problem with the
DOE-2 packed version of the IWEC weather file for Melbourne, I've determined
the problem arises due to: (1) IWEC using the 9999 flag for missing
pressures, and (2) the TMY2DCD routine in the DOE-2 weather packer (doewth)
not checking for missing value flags and thus reading the 9999 flag literally
as 9999 milibars. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I then checked into all 225 DOE-2 packed
IWEC files (*.bin), and found that 49 of them have occurences of the same
problems, ranging from one such hour to extreme cases where presssure is
missing (and thus interpreted on the *.bin files as 9999 millibars) for
all 8760 hours. Assuming that others who have "packed" IWEC for DOE-2
used the same method as I, i.e., modifying the IWEC files to TMY2 format and
then packing them as TMY2 files, be warned that many of these files will have
bogus pressures. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am in the process of modifying doewth to take
care of this glitch, either by interpolating between the closest available
pressure recordings, or simply using a default pressure based on the station
elevation, but wanted to warn people as soon as possible. I will update
BLDG-SIM when this patch is completed.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Joe</FONT></DIV>
<DIV>----- Original Message ----- </DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Laurier.Nichols@dessausoprin.com
href="mailto:Laurier.Nichols@dessausoprin.com">Laurier Nichols</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> Monday, February 20, 2006 4:45
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [BLDG-SIM] Problem with
Melbourne weather file</DIV>
<DIV><BR></DIV><!-- Converted from text/rtf format -->
<P><FONT face=Arial size=2>The IWEC file for Melbourne (Australia) has a
major problem with the atmospheric pressure in June and July.</FONT> </P>
<P><FONT face=Arial size=2>The file is idenified as 948660.IWC</FONT> </P>
<P><FONT face=Arial size=2>The pressure is not according to the standardized
IWEC fromat. The value is 9999 instead of hundreds of Pascal</FONT> </P>
<P><FONT face=Arial size=2>The file I have is from the disk of IWEC files
from ASHRAE. This disk was purchase 3 to 4 years ago.</FONT> </P>
<P><FONT face=Arial size=2>It took several hours to find the cause of
erronous results from DOE-2 simulations.</FONT> </P>
<P><FONT face=Arial size=2>Please let me know if this problem was solved for
the available files from Energyplus.</FONT> </P>
<P><FONT face=Arial size=2>Let me know also if anybody found other problems
with any of the IWEC weather files.</FONT> </P>
<P><FONT face=Arial size=2>Laurier Nichols</FONT> <BR><FONT face=Arial
size=2>Dessau-Soprin</FONT> <BR><FONT face=Arial size=2>Montreal, Quebec
Canada</FONT> <BR><FONT face=Arial
size=2>laurier.nichols@dessausoprin.com</FONT> </P><BR><FONT
size=3><BR><BR>****************************************************************************<BR>Ce
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