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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'>Expanding on what Bruce said, consider
that equipment nameplate electric values tend to be substantially higher than in
real life. If you are currently using nameplate equipment values as the basis
for your <st1:place w:st="on">Watts</st1:place> / sf model inputs, it could be
unrealistically increasing both the electric energy consumption of the
equipment itself and the energy required to condition the space. <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'>FYI, if you have an ASHRAE 2009
Fundamentals Handbook, check out Tables 6 and 7 on pages F18.11 for nameplate
and recommended heat gain rates from typical medical equipment (or see
attached). You’re probably not modeling each individual blanket warmer (I
hope!) but it gives you an idea of how substantially actual conditions can
differ from nameplate. <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'>As Bruce also mentioned, make sure a
utilization schedule is applied to whatever peak value you come up with so that
it is not running at 100% all the time. It sounds from your email like you may
already have a schedule applied to prevent them from being “used”
very often though… <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'>Brian<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight:bold'>From:</span></font></b><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'> Fred Betz [mailto:fbetz@aeieng.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, October 25, 2011
6:25 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Bruce Easterbrook; Chen,
Ke-Huang<br>
<b><span style='font-weight:bold'>Cc:</span></b>
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Equest-users]
Medical equipments</span></font><font color=black><span style='color:windowtext'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color=black 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'>Chen,<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'>I do a lot of LEED
modeling in health care. You should be seeing between 20% and 35% for the
electrical process load. <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'>If you have a lot of
large equipment; CT’s, MRI’s, etc. then you’ll be closer to
the 35%. If you have a small clinic or medical office building that shares
equipment between locations, then you’ll be closer to 20%. <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'>Another
consideration is that your large equipment might be water cooled. If
that’s the case, you should put about 10-15% of the electric load in the
space, and then 85-90% of the load as an external load similar to exterior
lights. Make sure to put an equivalent cooling load on you chilled water loop
as a process load. <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 that 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'>Fred<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>
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size=2 color="#660000" face=Calibri><span style='font-size:10.0pt;font-family:
Calibri;color:#660000;text-transform:uppercase;font-weight:bold'>Fred Betz</span></font></b><b><font
size=1 color="#333333" face=Calibri><span style='font-size:9.0pt;font-family:
Calibri;color:#333333;font-weight:bold'> </span></font></b><font
size=1 color="#333333" face=Calibri><span style='font-size:9.0pt;font-family:
Calibri;color:#333333'>PhD., LEED AP <br>
</span></font><font size=2 color="#333333" face=Calibri><span
style='font-size:10.0pt;font-family:Calibri;color:#333333;text-transform:
uppercase'>Sustainable Systems Analyst</span></font><font size=1
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color:#333333'><o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 color=black face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;color:windowtext;font-weight:bold'>From:</span></font></b><font
size=2 color=black face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;
color:windowtext'> Bruce Easterbrook [mailto:bruce5@bellnet.ca] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, October 23, 2011
9:35 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Chen, Ke-Huang<br>
<b><span style='font-weight:bold'>Cc:</span></b>
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Equest-users]
Medical equipments<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face="Times New Roman"><span
style='font-size:13.5pt'>Hi Chen,<br>
I don't do much medical work or LEED but the medical equipment should be
modelled like a process load and have it's own schedule you can
manipulate. 60% sounds like a lot. With it's own schedule you can
change it to reflect its actual loads and locations in the building.
Process loads, like industrial loads don't effect LEED. But they do
effect the sizing of your HVAC equipment. So you do have to model them
realistically. You could put them on their own sub meter as well. This
might make separating from the LEED parts of your project simpler. LEED
or not, your building has to work well. That is your primary focus.
60% is a big effect, make sure it is realistic and make sure your systems can
handle it.<br>
Bruce Easterbrook P.Eng.<br>
Abode Engineering<br>
</span></font><br>
On 23/10/2011 4:35 AM, Chen, Ke-Huang wrote: <o:p></o:p></p>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Dear eQUEST users,</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>I am trying to build a LEED Health Care model
and have a question about the electric of medical equipments. After I
modeled the equipments, the electric consumption of Misc. Equip. is about
60% of total electric but the medical equipments are not used very frequently.
Do I have to add the medical equipments to the model or where can
I plan a schedule for the medical equipments? Did anyone have the
experience of modeling a LEED Health Care model? It's my first time building a
Health Care model, is there anything I need to look over ? Any
suggestion will be appreciated.</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Best regards,</span></font><o:p></o:p></p>
</div>
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style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><strong><b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial'>KeHuang Chen</span></font></b></strong><o:p></o:p></p>
</div>
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<p class=MsoNormal><strong><b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial'>System Engineer</span></font></b></strong><o:p></o:p></p>
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<p class=MsoNormal><strong><b><font size=2 color=black face=Arial><span
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<pre><font size=2 color=black face="Courier New"><span style='font-size:10.0pt'>_______________________________________________<o:p></o:p></span></font></pre><pre><font
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