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<title>Weather Data -- Joint Frequency Distribution Plots Superimposed on a
Psychrometric Chart</title>
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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'>Joint frequency tables for DB/WB, DB/DP,
DB/enthalpy, and DB/WS are available on the ASHRAE Weather Data Viewer (WDVIEW)
CD-ROM product. The cumulative frequencies and joint frequencies of these
parameters are given by month or for the entire year for each of the 1400+
locations that are listed in the ASHRAE Handbook – Fundamentals. A
description of the CD can be found on the ASHRAE TC4.2 website or at <a
href="http://www.bae.uky.edu/~colliver/Programs/wdview_21.htm">http://www.bae.uky.edu/~colliver/Programs/wdview_21.htm</a>
<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'>The joint frequency data presented in the
CD will then have to be imported into a program than can plot the 3-D data. I
used Excel but other packages may be used.<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'>Hope this helps.<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'>Don Colliver<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>--------------------------------------------------------------------------------</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Donald Colliver, Ph.D., P.E.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>128 C. E. Barnhart
Building 1.859.257.3000 (Tel)</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:place w:st="on"><st1:PlaceType w:st="on"><font size=2
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w:st="on">Kentucky</st1:PlaceName></span></font></st1:place><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>
1.859.257.5671 (Fax)</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Lexington</span></font></st1:City><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>, <st1:State
w:st="on">KY</st1:State> <st1:PostalCode w:st="on">40546-0276</st1:PostalCode>
<st1:country-region w:st="on">USA</st1:country-region></span></font></st1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><a
href="mailto:colliver@bae.uky.edu"><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>colliver@bae.uky.edu</span></font></a><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>--------------------------------------------------------------------------------</span></font><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'><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'> postman@gard.com
[mailto:postman@gard.com] <b><span style='font-weight:bold'>On Behalf Of </span></b>Davidson,
Tom<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, November 16, 2004
10:49 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] Weather Data
-- Joint Frequency Distribution Plots Superimposed on a Psychrometric Chart</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><st1:place w:st="on"><st1:PlaceName w:st="on"><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Dear</span></font></st1:PlaceName><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> <st1:PlaceType
w:st="on">Building</st1:PlaceType></span></font></st1:place><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'> Simulation List,</span></font>
<o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I
think that I've seen joint frequency binned weather data (drybulb, wetbulb)
plotted on a psychrometric chart. Colors may have been used to indicate the
number of hours in each bin.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>It
may well have been a custom application, but if there is a commercial product
that does this, I would be interested in knowing who to contact.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Thank
you,</span></font> <o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Tom
Davidson</span></font> <o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Thomas
A. Davidson, P.E.</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>DLB
Associates Consulting Engineers</span></font> <br>
<st1:Street w:st="on"><st1:address w:st="on"><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>2403 State Route</span></font></st1:address></st1:Street><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> 66</span></font>
<br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Ocean,
NJ 07712-3962</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>phone:
732-774-2000</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>fax:
732-774-5000</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>email:
tdavidson@dlbassociates.com</span></font> <br>
<font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>www.dlbassociates.com
</span></font><o:p></o:p></p>
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12.0pt'><o:p> </o:p></span></font></p>
<pre><font size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><o:p> </o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'>==================<o:p></o:p></span></font></pre><pre><font
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