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<font size="+1">When I do kitchens I set them up <font size="+1">as
separate HVAC zones. The refrigeration side is not that
critical. The cooler will be a<font size="+1"> fairly <font
size="+1">consistent</font> load 24 h<font size="+1">ours a
day with the main variable being the efficiency of the heat
rejection equipment and the outside temperature variation.
The fr<font size="+1">eezer will/should be well insulated
and won't have much impact on adjacent spaces. </font>The
cooking area is a totally different mater. You will requ<font
size="+1">ire<font size="+1"> exhaust as per NFPA rul<font
size="+1">e<font size="+1">s and make<font size="+1">up
air to match. The cook<font size="+1">ing units
will be fairly cons<font size="+1">istent during
the time they are on<font size="+1"> as far as
the heat the emitted into the space and ca<font
size="+1">n be modelled as proc<font
size="+1">ess equipmen<font size="+1">t</font></font></font>
with a<font size="+1">n appropriate schedule</font>.
The requi<font size="+1">red </font>MUA
will have large variations throughout the
year<font size="+1"> and should be modelled
as it's own zone. This unit and it's
performance will dominate the energy
consumption of the kitchen and eating
area. To not set this area up to make it
available to <font size="+1">analyze</font>
it's energy efficiency and impact is a
disservice to your client. Doing this
also will take into account the impact on
adjacent zones. <font size="+1">E</font>quest
will onl<font size="+1">y allow one <font
size="+1">HVAC unit per zone. Because
the kitchen area is so intense you
really have to set it up as a separate
zone with a separate unit. Once you
have done that then you have all the
tools to track tem<font size="+1">perature,
humidity, performance etc.</font></font></font><br>
<font size="+1">Bruce Easterbrook P.Eng.<br>
<font size="+1">Abode Engineering</font><br>
</font></font></font></font></font></font></font></font></font></font></font></font></font></font>
<div class="moz-cite-prefix">On 26/09/2013 4:39 PM, Lyle Keck wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi
Ramana,
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">One
option would be to create separate meters and input the
process equipment as direct loads (electric or gas
consumption) as you have described. You could then go to
the individual space(s) and under the ‘equipment’ tab define
an internal energy source with the source type set to
‘process’ (internal energy sources deemed process will not
contribute to a utility load). This will effectively create
a heat gain (or loss) within the room and you can assign the
appropriate fraction of sensible/latent gain. This should
allow you to define the input power as direct loads on
meters, and subsequent internal gains in specific spaces.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<table class="MsoNormalTable" style="width:393.75pt" width="525"
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<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:115%"><b><span
style="font-size:10.0pt;line-height:115%;font-family:"Calibri","sans-serif";color:#660000;text-transform:uppercase">LYLE
KECK</span></b><b><span
style="font-size:9.0pt;line-height:115%;font-family:"Calibri","sans-serif";color:#333333">
</span></b><span
style="font-size:9.0pt;line-height:115%;font-family:"Calibri","sans-serif";color:#333333">LEED
AP BD+C, EIT<br>
</span><span
style="font-size:10.0pt;line-height:115%;font-family:"Calibri","sans-serif";color:black;text-transform:uppercase">SUSTAINABLE
SYSTEMS ANALYST</span><span
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<p class="MsoNormalCxSpMiddle"
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style="font-size:9.0pt;line-height:115%;font-family:"Calibri","sans-serif";color:#660000">AEI</span></b><span
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| AFFILIATED ENGINEERS, INC.<br>
1601 Fifth Avenue, Suite 1400 | Seattle, WA 98101<br>
<br>
</span><span
style="font-size:9.0pt;line-height:115%;font-family:"Calibri","sans-serif";color:#660000">P:
206.829.7307 | F: 206.256.0423</span><span
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<p class="MsoNormal"><span
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<p class="MsoNormal"><span
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<p class="MsoNormal"><span
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<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
Ramana Koti [<a class="moz-txt-link-freetext" href="mailto:ramana.koti@gmail.com">mailto:ramana.koti@gmail.com</a>]
<br>
<b>Sent:</b> Thursday, September 26, 2013 7:22 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] process load categorization
in outputs<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Dear all,<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I'm modeling a commercial kitchen under
the LEED for Retail rating system.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Per the end use classifications in the
LEED template Section 1.6 Table EAp2-4, its seems
advisable to have process loads output from eQUEST
separately along the lines of Refrigeration, Cooking,
commercial kitchen equipment.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I currently have all of them lumped
under equipment loads in two different HVAC zones which
makes the program output all the consumption under one
heading 'miscellaneous equipment'. This captures the
equipment's latent and sensible contribution to heating
and cooling loads. (Accurate but no breakdown)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">If I created separate meters and input
the process equipment as direct loads, I'm unable to
assign the heat they emit to any particular HVAC zone
which is unacceptable considering their contribution to
the heating and cooling loads. Kind of a catch-22. This
method also does not allow differentiation between
sensible and latent contributions. (Broken down but not
accurate)<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Is there a workaround?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Thank you,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Ramana.<o:p></o:p></p>
</div>
</div>
</div>
<br>
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