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<font size="+1">LEED doesn't deal with process loads. Typically it
is not something you can have much effect on. The process defines
how much heat you have to deal with and normally it is not
negotiable. Economically your main technique is to load shift.
Time of use electrical billing (TOU) if in effect will further
reinforce this technique. If you have cheap natural gas available
and a large enough load absorption chillers become an option as
well. Economizer use and free cooling can be very effective. As
far as your project goes and myself knowing very little about the
actual project you seem to be on the right track. You are using a
legitimate technique to load shift. There aren't really any
"rules" except to design an energy efficient system which is
inexpensive to run. As far as your set up of your model I would
use zones to correspond to the planned expansions. Your first
zone would represent Day 1 conditions without any techniques used
to reduce server loads. Your last will correspond to the full
design. You will need to get some idea of how they plan to expand
and enhance the server performance but just start with a plain
baseline for them. Looking at your unit combinations I would go
with more zones myself, break down Day one conditions into 2 or 3
zones. It is easier to combine zones later than try to add more.
You will probably be able to provide input on their proposed
expansion plan and the timing as well once you have a model
running. You want to keep your model flexible so it is easy to
adjust as you learn more about the system without having to start
over. Because there are discrete equipment sizes both for HVAC
systems and servers you could assist in planning the expansions by
optimizing the size of each addition and by having a certain
amount of over capacity to handle smaller additions to the servers
without adding to the HVAC system. You would also optimize the
size of the extra capacity to minimize inefficiencies in the part
load running. You would be able to add their strategies for
reducing the process load to the model. Make sure you keep a copy
of the model before you start to run different ideas. Some things
suggested may require you to back up to the base model. With
copies along your process you just jump back to where you need to
restart your model creation without going right back to the
beginning. Servers are a little different from people. You have
to remove all the heat all the time. They have to be operational
24/7 no if ands or buts, 100% up time.<br>
Bruce Easterbrook P.Eng.<br>
Abode Engineering<br>
</font><br>
On 20/06/2011 01:24 AM, Shuichi Hendrickson wrote:
<blockquote
cite="mid:7F375B16C5455542AC9B6247C74FDB86034E5F@grpandmbx01.mail.erm55.com"
type="cite">
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<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Patrick, Will, John
and all</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Thank you all for
the quick responses to my original post.</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Based on your
comments, I have a couple more questions that I hope
someone may have insight into.</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">It seems that due to
the large process equipment energy usage for datacenters,
others have experienced that showing significant energy
reduction through HVAC alone is difficult. Following from
this, for the purposes of LEED it appears that is would be
best to find some strategy to minimize process loads in
the model or somehow show a process load reduction.</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">1) For the project
I am working on, we are starting off with 3 X 600RT CWH
chillers + 2 X 600RT dual mode (CHW and Ice) chillers on
Day 1, but with an additional 1 x 600RT CHW + 2 X 600RT
dual mode units are planned for full future design cooling
capacity. Correspondingly, the Server (process equipment)
will be installed in stages as well.
</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Does anyone know
what if there are any rules as to what point in project
development the model should be based on? My original plan
was to model at full design capacity, but I am thinking
now that it would be better to model Day 1 conditions if
permissible to lower the denominator in the energy
reduction calculation.</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">2) The client is
considering using Server Virtualization technology for the
IT equipment. I understand that this is a much more
efficient means of operating server equipment and I am
considering using this as a basis for showing process
energy reduction based on a CIR I have come across (CIR
2441). The CIR was originally submitted for a remodelling
project, so the process reduction would have been shown
versus the originally installed equipment. </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Does anyone have any
thought or experience any with showing this type of
process reduction for a LEED-NC project? I am imagining
the baseline will be based on servers without
virtualization. I don’t really know enough about
“Virtualization” at this stage to really quantify what
energy reduction, if any, could be expected. Some long
conversations with the IT designer are warranted, but
would appreciate if any one has any thoughts to share.</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Again, any thoughts
will be greatly appreciated.</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Thanks in advance,</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB">Shuichi</span></font></p>
<p class="MsoPlainText"><font size="2" face="Courier New"><span
style="font-size: 10pt;" lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<b><font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray; font-weight: bold;"
lang="EN-GB">Shuichi Hendrickson</span></font></b></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="EN-GB">Environmental
Engineer, LEED AP</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color: black;"
lang="EN-GB"><br>
</span></font><b><font size="2" color="gray" face="Book
Antiqua"><span style="font-size: 10pt; font-family:
"Book Antiqua"; color: gray; font-weight:
bold;" lang="EN-GB">ERM Japan</span></font></b></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="EN-GB">The Landmark
Tower
</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;">Yokohama</span></font><font
size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;"> 19F</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;">2-2-1-1, Minatomirai,
Nishi-ku</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="DE">Yokohama, 220-8119,
Japan</span></font><span lang="DE"></span></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color: black;"
lang="DE"><br>
</span></font><font size="2" color="gray" face="Book
Antiqua"><span style="font-size: 10pt; font-family:
"Book Antiqua"; color: gray;" lang="DE">T:</span></font><font
size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="PT-BR"><a
moz-do-not-send="true"
href="tel:%2B81%280%2945-640-3780" target="_blank"><span
lang="DE">+81(0)45-640-3780</span></a></span></font><font
size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="DE">
<br>
F:</span></font><font size="2" color="gray" face="Book
Antiqua"><span style="font-size: 10pt; font-family:
"Book Antiqua"; color: gray;" lang="PT-BR"><a
moz-do-not-send="true"
href="tel:%2B81%280%2945-640-3781" target="_blank"><span
lang="DE">+81(0)45-640-3781</span></a></span></font><font
size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="DE"><br>
</span></font><font size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color: black;"
lang="EN-GB"><a moz-do-not-send="true"
href="mailto:shuichi.hendrickson@erm.com"
target="_blank"
title="mailto:shuichi.hendrickson@erm.com
mailto:first.lastnamemasashi.hishiyama@erm.com
mailto:first.lastname@erm.com"><span lang="DE">shuichi.hendrickson@erm.com</span></a></span></font><font
size="2" color="black" face="Arial"><span style="font-size:
10pt; font-family: Arial; color: black;" lang="DE">
<br>
</span></font><font size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color: black;"
lang="EN-GB"><a moz-do-not-send="true"
href="http://www.erm.com/" target="_blank"
title="http://www.erm.com/"><span lang="DE">www.erm.com</span></a></span></font><font
size="2" color="black" face="Arial"><span style="font-size:
10pt; font-family: Arial; color: black;" lang="EN-GB">
</span></font><span lang="DE"></span></p>
<p class="MsoNormal" style=""><i><font size="2" color="gray"
face="Book Antiqua"><span style="font-size: 10pt;
font-family: "Book Antiqua"; color: gray;
font-style: italic;" lang="EN-GB">Ranked No1
All-Environmental Firm: ENR Magazine (2004, 2005, 2006,
2007)<br>
Environmental Adviser of the Year: Acquisitions Monthly
(2005, 2006, 2008)</span></font></i></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="1" color="teal" face="Webdings"><span
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</span></font><font size="1" color="teal" face="Arial"><span
style="font-size: 8pt; font-family: Arial; color: teal;"
lang="EN-US">Please consider the environment before
printing this email</span></font></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span
style="font-size: 10pt; font-family: Tahoma;
font-weight: bold;" lang="EN-US">From:</span></font></b><font
size="2" face="Tahoma"><span style="font-size: 10pt;
font-family: Tahoma;" lang="EN-US"> Will Mak
[<a class="moz-txt-link-freetext" href="mailto:wmak@epsteinglobal.com">mailto:wmak@epsteinglobal.com</a>] <br>
<b><span style="font-weight: bold;">Sent:</span></b>
Friday, June 17, 2011 11:15 PM<br>
<b><span style="font-weight: bold;">To:</span></b>
Patrick Keeney; Shuichi Hendrickson<br>
<b><span style="font-weight: bold;">Cc:</span></b>
<a class="moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b><span style="font-weight: bold;">Subject:</span></b>
RE: [Equest-users] Data Center Modelling and Ice Storage</span></font><span
lang="EN-US"></span></p>
</div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;"> </span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Segoe
UI"><span style="font-size: 10pt; font-family: "Segoe
UI"; color: rgb(31, 73, 125);" lang="EN-US">Side note
that you may want to keep in mind that’s been brought up
here is how you model the data center process loads. If
the loads are too large, you may have a difficult time
meeting the prerequisite.
</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Segoe
UI"><span style="font-size: 10pt; font-family: "Segoe
UI"; color: rgb(31, 73, 125);" lang="EN-US"> </span></font></p>
<p class="MsoNormal"><b><font size="3" color="#c75b12"
face="Segoe UI"><span style="font-size: 12pt; font-family:
"Segoe UI"; color: rgb(199, 91, 18);
font-weight: bold;" lang="EN-US">William Mak, LEED AP
BD+C</span></font></b><font size="1" color="#1f497d"
face="Segoe UI"><span style="font-size: 9pt; font-family:
"Segoe UI"; color: rgb(31, 73, 125);"
lang="EN-US"><br>
</span></font><font size="1" color="black" face="Segoe UI"><span
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color: black;" lang="EN-US">Mechanical Design Engineer</span></font><font
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color: black;" lang="EN-US"><br>
</span></font><font size="1" color="#1f497d" face="Segoe UI"><span
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lang="EN-US">EPSTEIN</span></font></b><font size="1"
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125);" lang="EN-US"><br>
</span></font><font size="1" color="black" face="Segoe UI"><span
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color: black;" lang="EN-US">Architecture<br>
</span></font><font size="1" color="#c75b12" face="Segoe UI"><span
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Engineering<br>
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<p class="MsoNormal"><font size="1" color="black" face="Segoe
UI"><span style="font-size: 8pt; font-family: "Segoe
UI"; color: black;" lang="EN-US">Sustainability<br>
<br>
600 West Fulton Street<br>
Chicago, Illinois 60661-1259<br>
<br>
D: (312) 429-8116<br>
F: (312) 429-8800</span></font><font size="1"
color="#1f497d" face="Segoe UI"><span style="font-size: 8pt;
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<p class="MsoNormal"><font size="1" color="black" face="Segoe
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style="font-size: 8pt; font-family: "Segoe UI";
color: rgb(0, 112, 192);" lang="EN-US">
<a moz-do-not-send="true"
href="mailto:wmak@epsteinglobal.com">wmak@epsteinglobal.com</a></span></font><font
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color: black;" lang="EN-US"><br>
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UI"><span style="font-size: 8pt; font-family: "Segoe
UI"; color: rgb(199, 91, 18);" lang="EN-US">
<a moz-do-not-send="true"
href="http://www.epsteinglobal.com/"><font
color="#c75b12"><span style="color: rgb(199, 91, 18);">www.epsteinglobal.com</span></font></a></span></font><font
size="1" color="black" face="Segoe UI"><span
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color: black;" lang="EN-US"><br>
<br>
</span></font><font size="2" color="#00b050" face="Webdings"><span
style="font-size: 10pt; font-family: Webdings; color:
rgb(0, 176, 80);" lang="EN-US">þ</span></font><font
size="1" color="black" face="Segoe UI"><span
style="font-size: 8pt; font-family: "Segoe UI";
color: black;" lang="EN-US"> Epstein is a firm believer in
sustainability. We ask that you please consider the
environment before printing this e-mail.</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Segoe
UI"><span style="font-size: 10pt; font-family: "Segoe
UI"; color: rgb(31, 73, 125);" lang="EN-US"> </span></font></p>
<div style="border-right: medium none; border-width: 1pt medium
medium; border-style: solid none none; border-color: rgb(181,
196, 223) -moz-use-text-color -moz-use-text-color; padding:
3pt 0mm 0mm;">
<p class="MsoNormal"><b><font size="2" face="Tahoma"><span
style="font-size: 10pt; font-family: Tahoma;
font-weight: bold;" lang="EN-US">From:</span></font></b><font
size="2" face="Tahoma"><span style="font-size: 10pt;
font-family: Tahoma;" lang="EN-US">
<a class="moz-txt-link-abbreviated" href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b><span
style="font-weight: bold;">On Behalf Of
</span></b>Patrick Keeney<br>
<b><span style="font-weight: bold;">Sent:</span></b>
Friday, June 17, 2011 9:06 AM<br>
<b><span style="font-weight: bold;">To:</span></b>
Shuichi Hendrickson<br>
<b><span style="font-weight: bold;">Cc:</span></b>
<a class="moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b><span style="font-weight: bold;">Subject:</span></b>
Re: [Equest-users] Data Center Modelling and Ice Storage</span></font></p>
</div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US"> </span></font></p>
<div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US">Hi Shuichi,</span></font></p>
</div>
<div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US"> </span></font></p>
</div>
<div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US">Below is a link to
an additional source from a previous post that helps
explain how to model UFAD and/or displacement
ventilation. Their method is very similar to yours, in
that you split the equipment loads between the plenum
and the space. In particular, there is a section which
explains pretty clearly how to model UFAD in eQUEST.
This may be repeat info to you, but it may be able to
help.
</span></font></p>
</div>
<div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US"><a
moz-do-not-send="true"
href="http://www.archenergy.com/ieq-k12/Public/Proj2_Deliverables/D2.9c_FinalDVDesignGuide_2006-0630.pdf">http://www.archenergy.com/ieq-k12/Public/Proj2_Deliverables/D2.9c_FinalDVDesignGuide_2006-0630.pdf</a></span></font></p>
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style="font-size: 12pt;" lang="EN-US"> </span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US">Best, Patrick</span></font></p>
</div>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US"><br>
<br>
</span></font></p>
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<div>
<p class="MsoNormal"><font size="3" face="Times New Roman"><span
style="font-size: 12pt;" lang="EN-US">On Fri, Jun 17,
2011 at 3:07 AM, Shuichi Hendrickson <<a
moz-do-not-send="true"
href="mailto:Shuichi.Hendrickson@erm.com">Shuichi.Hendrickson@erm.com</a>>
wrote:</span></font></p>
<div>
<div>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">Hello all,</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">I am attempting to model a data center
in eQuest for LEED. This will be a first attempt at
modelling a data center for me and I am in hopes
someone could provide some sage advice on the
subject. </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">My understanding is that the data
center will be a standard hot/cold aisle
configuration with underfloor cooling (UFAD). The
CRACs are on CHW and the CHW plant consists of
multiple chillers, as well as, dedicated chillers
for ice storage.</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">Recognizing that eQuest doesn’t
consider fluid air dynamics or temperature
stratification resultant from UFAD, I am considering
using the UFAD modelling guidance in the EDR Design
Guidelines: HVAC Simulation Guidance (<a
moz-do-not-send="true"
href="http://www.energydesignresources.com/resources/publications/design-guidelines/design-guidelines-hvac-simulation-guidelines.aspx"
target="_blank">http://www.energydesignresources.com/resources/publications/design-guidelines/design-guidelines-hvac-simulation-guidelines.aspx</a>)</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">This document addresses UFAD, but not
specific to data center or hot/cold aisle. What Ive
gotten out of the guidance is that for comfort UFAD
applications, the upper portion of a room (non
occupied ) space is defined as plenum and the
internal loadings for the room are apportioned
between the occupied zone and plenum. It seems to me
that this method could be appropriate for hot/cold
aisle scenarios as well, with the hot aisle as the
plenum and cold as space. From the guidance
equipments loads are suggested to be apportioned 67%
space 33% plenum for comfort applications.
</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">My understanding of hot/cold aisle
configurations is that cold air is supplied on the
front side of the server racks, pulled through the
racks by the server internal cooling fans, and
exhausted in to the hot aisle. Following from this
logic it seems to me that the equip load should
apportioned mostly to the plenum (hot aisle).
</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">Does anyone have a better suggestion
for load proportioning for a datacenter? Am I over
complicating this?</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">My next challenge is modelling the Ice
storage. I have 6 chillers of which 2 are dual mode
CHW and Ice making. My guess is that I will have to
model the dual mode units as 4 chillers (2 for CHW
and 2 for ice) because of the different efficiencies
and supply temps, while somehow using to the equip
controls to make sure the chillers are not operating
simultaneously.
</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">This will be another first attempt for
me. If anyone knows of any useful modelling guidance
docs or has any advice on this it would be highly
appreciated.</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB">Thank you in advance and regards,</span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style=""><font size="2" face="Arial"><span
style="font-size: 10pt; font-family: Arial;"
lang="EN-GB"> </span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<b><font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray; font-weight: bold;"
lang="EN-GB">Shuichi Hendrickson</span></font></b></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="EN-GB">Environmental
Engineer, LEED AP</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color:
black;" lang="EN-GB"><br>
</span></font><b><font size="2" color="gray"
face="Book Antiqua"><span style="font-size: 10pt;
font-family: "Book Antiqua"; color:
gray; font-weight: bold;" lang="EN-GB">ERM Japan</span></font></b></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="EN-GB">The
Landmark Tower
</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;">Yokohama</span></font><font
size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;"> 19F</span></font></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="PT-BR">2-2-1-1,
Minatomirai, Nishi-ku</span></font><span
lang="PT-BR"></span></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray;" lang="PT-BR">Yokohama,
220-8119, Japan</span></font><span lang="PT-BR"></span></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color:
black;" lang="PT-BR"><br>
</span></font><font size="2" color="gray" face="Book
Antiqua"><span style="font-size: 10pt; font-family:
"Book Antiqua"; color: gray;" lang="PT-BR">T:<a
moz-do-not-send="true"
href="tel:%2B81%280%2945-640-3780" target="_blank">+81(0)45-640-3780</a>
<br>
F:<a moz-do-not-send="true"
href="tel:%2B81%280%2945-640-3781" target="_blank">+81(0)45-640-3781</a><br>
</span></font><font size="2" color="black"
face="Arial"><span style="font-size: 10pt;
font-family: Arial; color: black;" lang="EN-GB"><a
moz-do-not-send="true"
href="mailto:shuichi.hendrickson@erm.com"
target="_blank"
title="mailto:shuichi.hendrickson@erm.com
mailto:first.lastnamemasashi.hishiyama@erm.com
mailto:first.lastname@erm.com"><span lang="PT-BR">shuichi.hendrickson@erm.com</span></a></span></font><font
size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color:
black;" lang="PT-BR">
<br>
</span></font><font size="2" color="black"
face="Arial"><span style="font-size: 10pt;
font-family: Arial; color: black;" lang="EN-GB"><a
moz-do-not-send="true" href="http://www.erm.com/"
target="_blank" title="http://www.erm.com/"><span
lang="PT-BR">www.erm.com</span></a></span></font><font
size="2" color="black" face="Arial"><span
style="font-size: 10pt; font-family: Arial; color:
black;" lang="EN-GB">
</span></font><span lang="PT-BR"></span></p>
<p class="MsoNormal" style=""><i><font size="2"
color="gray" face="Book Antiqua"><span
style="font-size: 10pt; font-family: "Book
Antiqua"; color: gray; font-style: italic;"
lang="EN-GB">Ranked No1 All-Environmental Firm:
ENR Magazine (2004, 2005, 2006, 2007)<br>
Environmental Adviser of the Year: Acquisitions
Monthly (2005, 2006, 2008)</span></font></i></p>
<p class="MsoNormal" style="text-align: justify;">
<font size="1" color="teal" face="Webdings"><span
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