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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'>Thanks Jim,<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'>Your idea regarding a “wish list”
for new features in eQUEST is a good one. It might be best to post requests to
either the <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>,
or send them directly to me at <a href="mailto:Steve.Gates@doe2.com">Steve.Gates@doe2.com</a>.
It would be best to not burden the main bldg-sim list with requests specific to
eQUEST. <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'> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>James Hess<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, June 25, 2008
6:29 AM<br>
<b><span style='font-weight:bold'>To:</span></b> steve.gates@doe2.com;
bldg-sim@lists.onebuilding.org; equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Equest-users] Spam:
eQUEST condensing boiler</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="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Steve,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Glad to hear this,
as this will be a good feature for eQuest. In the past when we’ve
performed analysis on condensing boilers, we used performance data from Aerco’s
website, such as: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><a
href="http://www.aerco.com/products/benchmark3-specs.shtml">http://www.aerco.com/products/benchmark3-specs.shtml</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>There is a link at
the top for the efficiency curves that take into account return temperature and
part load. You should check with Aerco regarding using the data, but I’m
sure you guys could work out a deal with them and other boiler manufacturers,
similar to what you guys did with ClimateMaster, to enable us to use custom
curves for specific boilers.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>It would be nice to
have the capability to directly simulate the condensing boilers in eQuest.
It would save us a bunch of additional steps that we currently use. The
current method we use for simulating condensing boilers is to first pull all
hourly heating load and temperature data into a spreadsheet. Then, we
calculate the efficiency for each hour based on the load and temp conditions,
and the Aerco performance curves. Then, we use all of those calcs to
calculate the annual average efficiency, and then we enter that number into eQuest
along with a custom PLR curve and zero standby and start-up times. The
custom PLR curve is a “y = m*x + B” type where m = 1 and B = 0 so
that the effects of part load are eliminated, since my annual average
efficiency number already takes this into account. I believe
this is similar to what Marlin showed us in a training class about 2 years ago.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>We usually come up
with annual average efficiencies of about 90 to 91 %, which seem reasonable.
Higher efficiencies are available in theory, but they bump up against the fact
that there is usually not much heating load when you can get away with the
lower temperatures required for the higher efficiencies. Therefore, the
really high efficiencies (when present) don’t have much of an effect on
the annual average number.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Hope this helps!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>One question; if you
guys are in the process of adding a few bells and whistles to the eQuest
program, would you mind if we (eQuest-users) submitted additional “wish
lists” items via this forum?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Thanks!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>James<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><b><i><font size=2 color="#00b050" face="Times New Roman"><span
style='font-size:10.0pt;color:#00B050;font-weight:bold;font-style:italic'>James
A. Hess, PE, CEM</span></font></i></b><font color="#00b050"><span
style='color:#00B050'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:10.0pt;color:#1F497D'>Energy Engineering Team Leader</span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:10.0pt;color:#1F497D'>TME, Inc.</span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:10.0pt;color:#1F497D'>5800 Evergreen Drive</span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:10.0pt;color:#1F497D'>Little Rock, AR 72205</span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#1f497d" face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:#1F497D'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#1f497d" face="Times New Roman"><span
style='font-size:7.5pt;color:#1F497D'>ph 501-666-6776</span></font><font
color="#1f497d"><span style='color:#1F497D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#1f497d" face="Times New Roman"><span
style='font-size:7.5pt;color:#1F497D'>fax 501-663-8888<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color="#1f497d" face="Times New Roman"><span
style='font-size:7.5pt;color:#1F497D'>cell 501-351-4667<o:p></o:p></span></font></p>
<p class=MsoNormal><u><font size=1 color=blue face="Times New Roman"><span
style='font-size:7.5pt;color:blue'><a href="mailto:email@tmecorp.com">jhess@tmecorp.com</a></span></font></u><u><font
size=2 color="#1f497d" face=Calibri><span style='font-size:11.0pt;font-family:
Calibri;color:#1F497D'><o:p></o:p></span></font></u></p>
<p class=MsoNormal><u><font size=1 color=blue face="Times New Roman"><span
style='font-size:7.5pt;color:blue'><a href="http://www.tmecorp.com/">www.tmecorp.com</a><o:p></o:p></span></font></u></p>
</div>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<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'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Steven Gates<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, June 24, 2008 7:32
PM<br>
<b><span style='font-weight:bold'>To:</span></b> bldg-sim@lists.onebuilding.org;
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Spam:[Equest-users]
eQUEST condensing boiler<o:p></o:p></span></font></p>
</div>
</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 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The eQUEST development team is in the process of
implementing a condensing boiler. We are looking for performance data, both for
the effect of entering temperature on fuel consumption, as well as the impact
of part load operating conditions on fuel consumption. If you have
information you are willing to share, please contact me.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Steve Gates<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(916) 638-1203<o:p></o:p></span></font></p>
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