<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
<font size="+1">Correct, you need to model them but they normally
don't vary between the 2 models, just accounted for. LEED does
assess how efficiently your system deals with them for certain
process loads in certain buildings. I was describing a
"industrial type" process load which a big data centre is similar
to.</font> <font size="+1">LEED doesn't really get into this
territory or give credits for it as far as the "industrial"
process load. Now Google is very interested in it because it
impacts their profitability. LEED is more concerned with the
commercial market where first cost rules and down and dirty is the
norm. Traditionally this sector did not pay much (any?) attention
to operating cost. LEED is trying to encourage longer term
thinking when a building is designed and built. Industry normally
thinks long term and includes operating cost in their analysis
over the life cycle of the process. With the increase in the cost
of energy plus the needs of utility companies to reduce their peak
loads or reduce the rate of expansion of this peak load it makes
sense for the government and all the players to be on the "team".
There is a disconnect in the commercial sector to many of the
market forces which would encourage better design. There is also
a huge stock of old properties to be re-furbished. This sector
consumes a large chunk of the nations energy.<br>
Bruce <br>
<br>
<br>
</font>On 20/06/2011 11:37 AM, Will Mak wrote:
<blockquote
cite="mid:88DC4C3C646DD5119B0D0002A537FD6818D1F212@madison.corp.epstein-isi.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<meta name="Generator" content="Microsoft Word 12 (filtered
medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]-->
<style><!--
/* Font Definitions */
@font-face
{font-family:"MS Gothic";
panose-1:2 11 6 9 7 2 5 8 2 4;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Segoe UI";
panose-1:2 11 5 2 4 2 4 2 2 3;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:Webdings;
panose-1:5 3 1 2 1 5 9 6 7 3;}
@font-face
{font-family:"Book Antiqua";
panose-1:2 4 6 2 5 3 5 3 3 4;}
@font-face
{font-family:"\@MS Gothic";
panose-1:2 11 6 9 7 2 5 8 2 4;}
@font-face
{font-family:"Book Antiqua \; color\: gray\;";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Times New\000D\000A Roman";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Segoe\000D\000A UI";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Segoe\000D\000A UI";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Segoe UI \; color\: black\;";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Times\000D\000A New Ro";
panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:Consolas;
color:black;}
span.emailstyle18
{mso-style-name:emailstyle18;
font-family:"Segoe UI","sans-serif";
color:#1F497D;}
span.emailstyle19
{mso-style-name:emailstyle19;
font-family:"Arial","sans-serif";
color:navy;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;
color:black;}
span.EmailStyle23
{mso-style-type:personal-reply;
font-family:"Segoe UI","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size: 10pt; font-family:
"Segoe UI","sans-serif"; color: rgb(31,
73, 125);">Where does it say LEED does not deal with process
loads? It states that you must model the process loads
anticipated on the design on both proposed design and
baseline models.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 10pt; font-family:
"Segoe UI","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-family: "Segoe
UI","sans-serif"; color: rgb(199, 91,
18);">William Mak, LEED AP BD+C</span></b><span
style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: rgb(31, 73, 125);"><br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: black;">Mechanical
Design Engineer</span><span style="font-size: 9pt;
font-family: "Segoe UI","sans-serif";
color: black;"><br>
</span><span style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: rgb(31, 73, 125);"><br>
</span><b><span style="font-size: 10pt; font-family:
"Segoe UI","sans-serif"; color:
rgb(199, 91, 18);">EPSTEIN</span></b><span
style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: rgb(31, 73, 125);"><br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: black;">Architecture<br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: rgb(199, 91, 18);">Interiors</span><span
style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: black;"><br>
Engineering<br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: rgb(199, 91, 18);">Construction</span><span
style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: black;"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 8pt; font-family:
"Segoe UI","sans-serif"; color:
black;">Sustainability<br>
<br>
600 West Fulton Street<br>
Chicago, Illinois 60661-1259<br>
<br>
D: (312) 429-8116<br>
F: (312) 429-8800</span><span style="font-size: 8pt;
font-family: "Segoe UI","sans-serif";
color: rgb(31, 73, 125);"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 8pt; font-family:
"Segoe UI","sans-serif"; color:
black;">E:</span><span style="font-size: 8pt; font-family:
"Segoe UI","sans-serif"; color: rgb(0,
112, 192);"> <a moz-do-not-send="true"
href="mailto:wmak@epsteinglobal.com">wmak@epsteinglobal.com</a></span><span
style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: black;"><br>
W:</span><span style="font-size: 8pt; font-family:
"Segoe UI","sans-serif"; color:
rgb(199, 91, 18);"> <a moz-do-not-send="true"
href="http://www.epsteinglobal.com/"><span style="color:
rgb(199, 91, 18);">www.epsteinglobal.com</span></a></span><span
style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: black;"><br>
<br>
</span><span style="font-size: 10pt; font-family: Webdings;
color: rgb(0, 176, 80);">þ</span><span style="font-size:
8pt; font-family: "Segoe
UI","sans-serif"; color: black;"> Epstein
is a firm believer in sustainability. We ask that you
please consider the environment before printing this
e-mail.<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size: 10pt; font-family:
"Segoe UI","sans-serif"; color: rgb(31,
73, 125);"><o:p> </o:p></span></p>
<div>
<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 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext;">From:</span></b><span style="font-size:
10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;"> Bruce Easterbrook
[<a class="moz-txt-link-freetext" href="mailto:bruce5@bellnet.ca">mailto:bruce5@bellnet.ca</a>] <br>
<b>Sent:</b> Monday, June 20, 2011 10:22 AM<br>
<b>To:</b> Shuichi Hendrickson<br>
<b>Cc:</b> Will Mak; Patrick Keeney;
<a class="moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] Data Center Modelling
and Ice Storage (2)<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size: 13.5pt;">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>
</span><br>
On 20/06/2011 01:24 AM, Shuichi Hendrickson wrote: <o:p></o:p></p>
<div>
<p class="MsoPlainText"><span lang="EN-GB">Patrick, Will, John
and all</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB">Thank you all for
the quick responses to my original post.</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB">Based on your
comments, I have a couple more questions that I hope
someone may have insight into.</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span 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><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span 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><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span 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><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span 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><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span 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><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB">Again, any thoughts
will be greatly appreciated.</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB">Thanks in advance,</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB">Shuichi</span><o:p></o:p></p>
<p class="MsoPlainText"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><b><span
style="font-size: 10pt; font-family: "Book
Antiqua","serif"; color: gray;"
lang="EN-GB">Shuichi Hendrickson</span></b><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;"
lang="EN-GB">Environmental Engineer, LEED AP</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";" lang="EN-GB"><br>
</span><b><span style="font-size: 10pt; font-family:
"Book Antiqua","serif"; color:
gray;" lang="EN-GB">ERM Japan</span></b><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;"
lang="EN-GB">The Landmark Tower </span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;">Yokohama
19F</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;">2-2-1-1,
Minatomirai, Nishi-ku</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;"
lang="DE">Yokohama, 220-8119, Japan</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";" lang="DE"><br>
</span><span style="font-size: 10pt; font-family: "Book
Antiqua","serif"; color: gray;" lang="DE">T:</span><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; 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><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;"
lang="DE"> <br>
F:</span><span style="font-size: 10pt; font-family:
"Book Antiqua","serif"; 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><span
style="font-size: 10pt; font-family: "Book Antiqua ;
color: gray;","serif"; color: gray;"
lang="DE"><br>
</span><span style="font-size: 10pt; font-family:
"Arial","sans-serif";" 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><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";" lang="EN-GB"> </span><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";" lang="DE"><br>
</span><span style="font-size: 10pt; font-family:
"Arial","sans-serif";" 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><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size: 10pt;
font-family: "Book Antiqua","serif";
color: gray;" 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></i><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 8pt; font-family: Webdings; color:
teal;">P</span><span style="font-size: 8pt; font-family:
"MS Gothic","serif"; color: teal;"> </span><span
style="font-size: 8pt; font-family:
"Arial","sans-serif"; color: teal;">Please
consider the environment before printing this email</span><o:p></o:p></p>
<p class="MsoNormal"><span style="" lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family: "Arial","sans-serif";
color: navy;"> </span><o:p></o:p></p>
<div>
<div class="MsoNormal" style="text-align: center;"
align="center">
<hr align="center" size="2" width="100%"></div>
<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family:
"Tahoma","sans-serif";"> Will Mak [<a
moz-do-not-send="true"
href="mailto:wmak@epsteinglobal.com">mailto:wmak@epsteinglobal.com</a>]
<br>
<b>Sent:</b> Friday, June 17, 2011 11:15 PM<br>
<b>To:</b> Patrick Keeney; Shuichi Hendrickson<br>
<b>Cc:</b> <a moz-do-not-send="true"
href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> RE: [Equest-users] Data Center Modelling
and Ice Storage</span><o:p></o:p></p>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;">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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-family: "Segoe
UI","sans-serif"; color: rgb(199, 91,
18);">William Mak, LEED AP BD+C</span></b><span
style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: rgb(31, 73, 125);"><br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif";">Mechanical Design
Engineer</span><span style="font-size: 9pt; font-family:
"Segoe UI","sans-serif";"><br>
</span><span style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: rgb(31, 73, 125);"><br>
</span><b><span style="font-size: 10pt;">EPSTEIN</span></b><span
style="font-size: 9pt; font-family: "Segoe
UI","sans-serif"; color: rgb(31, 73, 125);"><br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif";">Architecture<br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: rgb(199, 91, 18);">Interiors</span><span
style="font-size: 8pt; font-family: "Segoe
UI","sans-serif";"><br>
Engineering<br>
</span><span style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: rgb(199, 91, 18);">Construction</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 8pt; font-family:
"Segoe UI ; color: black;","serif";">Sustainability<br>
<br>
600 West Fulton Street<br>
Chicago, Illinois 60661-1259<br>
<br>
D: (312) 429-8116<br>
F: (312) 429-8800</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 8pt; font-family:
"Segoe UI ; color: black;","serif";">E:</span><span
style="font-size: 8pt; font-family: "Segoe
UI","sans-serif"; color: rgb(0, 112, 192);">
<a moz-do-not-send="true"
href="mailto:wmak@epsteinglobal.com">wmak@epsteinglobal.com</a></span><span
style="font-size: 8pt; font-family: "Segoe
UI","sans-serif";"><br>
W:</span><span style="font-size: 8pt;"> <a
moz-do-not-send="true"
href="http://www.epsteinglobal.com/"><span style="color:
rgb(199, 91, 18);">www.epsteinglobal.com</span></a></span><span
style="font-size: 9pt; font-family: "Segoe
UI","sans-serif";"><br>
<br>
</span><span style="font-size: 10pt; font-family: Webdings;
color: rgb(0, 176, 80);">þ</span><span style="font-size:
8pt; font-family: "Segoe
UI","sans-serif";"> Epstein is a firm
believer in sustainability. We ask that you please
consider the environment before printing this e-mail.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;"> </span><o:p></o:p></p>
<div style="border-right: medium none; border-width: 1pt
medium medium; border-style: solid none none; padding: 3pt
0in 0in; border-color: rgb(181, 196, 223)
-moz-use-text-color -moz-use-text-color;">
<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif";">From:</span></b><span
style="font-size: 10pt; font-family:
"Tahoma","sans-serif";"> <a
moz-do-not-send="true"
href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>
[<a moz-do-not-send="true"
href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Patrick Keeney<br>
<b>Sent:</b> Friday, June 17, 2011 9:06 AM<br>
<b>To:</b> Shuichi Hendrickson<br>
<b>Cc:</b> <a moz-do-not-send="true"
href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] Data Center Modelling
and Ice Storage</span><o:p></o:p></p>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">Hi Shuichi,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">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. <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><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><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Best, Patrick<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">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:<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB">Hello all,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB">Does anyone have a better suggestion
for load proportioning for a datacenter? Am I over
complicating this?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB">Thank you in advance and regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><b><span
style="font-size: 10pt; font-family: "Book
Antiqua","serif"; color: gray;"
lang="EN-GB">Shuichi Hendrickson</span></b><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book
Antiqua ; color: gray;","serif";
color: gray;" lang="EN-GB">Environmental Engineer,
LEED AP</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";"
lang="EN-GB"><br>
</span><b><span style="font-size: 10pt; font-family:
"Book Antiqua","serif"; color:
gray;" lang="EN-GB">ERM Japan</span></b><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book
Antiqua ; color: gray;","serif";
color: gray;" lang="EN-GB">The Landmark Tower </span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book
Antiqua ; color: gray;","serif";
color: gray;">Yokohama 19F</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book
Antiqua ; color: gray;","serif";
color: gray;" lang="PT-BR">2-2-1-1, Minatomirai,
Nishi-ku</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family: "Book
Antiqua ; color: gray;","serif";
color: gray;" lang="PT-BR">Yokohama, 220-8119, Japan</span><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";"
lang="PT-BR"><br>
</span><span style="font-size: 10pt; font-family:
"Book Antiqua","serif"; 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><span style="font-size: 10pt; font-family:
"Arial","sans-serif";"
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><span
style="font-size: 10pt; font-family:
"Arial","sans-serif";"
lang="EN-GB"> </span><span style="font-size: 10pt;
font-family:
"Arial","sans-serif";"
lang="PT-BR"><br>
</span><span style="font-size: 10pt; font-family:
"Arial","sans-serif";"
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><o:p></o:p></p>
<p class="MsoNormal"><i><span style="font-size: 10pt;
font-family: "Book
Antiqua","serif"; color: gray;"
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></i><o:p></o:p></p>
<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 8pt; font-family: Webdings; color:
teal;">P</span><span style="font-size: 8pt;
font-family: "MS
Gothic","serif"; color: teal;"> </span><span
style="font-size: 8pt; font-family:
"Arial","sans-serif"; color:
teal;">Please consider the environment before
printing this email</span><o:p></o:p></p>
<p class="MsoNormal"><span style="" lang="EN-GB"> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div class="MsoNormal" style="text-align: center;"
align="center">
<hr align="center" size="2" width="100%"></div>
<p class="MsoNormal"><span style="font-size: 7.5pt;
font-family: "Arial","sans-serif";
color: gray;"><br>
This electronic mail message may contain information
which is (a) LEGALLY PRIVILEGED, PROPRIETARY IN
NATURE, OR OTHERWISE PROTECTED BY LAW FROM DISCLOSURE,
and (b) intended only for the use of the Addressee (s)
names herein. If you are not the Addressee (s), or the
person responsible for delivering this to the
Addressee (s), you are hereby notified that reading,
copying, or distributing this message is prohibited.
If you have received this electronic mail message in
error, please contact us immediately and take the
steps necessary to delete the message completely from
your computer system. Thank you.<br>
<br>
Please visit ERM's web site: <a
moz-do-not-send="true" href="http://www.erm.com/"
target="_blank">http://www.erm.com</a></span><o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom: 12pt;"><br>
_______________________________________________<br>
Equest-users mailing list<br>
<a moz-do-not-send="true"
href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org"
target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>
To unsubscribe from this mailing list send a blank
message to <a moz-do-not-send="true"
href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><o:p></o:p></p>
</div>
<p class="MsoNormal"><br>
<br clear="all">
<br>
-- <br>
Patrick J Keeney<br>
MArch-MSSD Candidate<br>
410-299-5627<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div class="MsoNormal" style="text-align: center;"
align="center">
<hr align="center" size="2" width="100%"></div>
<p class="MsoNormal"><span style="font-size: 7.5pt; font-family:
"Arial","sans-serif"; color: gray;"><br>
This electronic mail message may contain information which
is (a) LEGALLY PRIVILEGED, PROPRIETARY IN NATURE, OR
OTHERWISE PROTECTED BY LAW FROM DISCLOSURE, and (b) intended
only for the use of the Addressee (s) names herein. If you
are not the Addressee (s), or the person responsible for
delivering this to the Addressee (s), you are hereby
notified that reading, copying, or distributing this message
is prohibited. If you have received this electronic mail
message in error, please contact us immediately and take the
steps necessary to delete the message completely from your
computer system. Thank you.<br>
<br>
Please visit ERM's web site: <a moz-do-not-send="true"
href="http://www.erm.com">http://www.erm.com</a><br>
<br>
</span><o:p></o:p></p>
<pre><o:p> </o:p></pre>
<pre><o:p> </o:p></pre>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Equest-users mailing list<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><o:p></o:p></pre>
<pre>To unsubscribe from this mailing list send a blank message to <a moz-do-not-send="true" href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><o:p></o:p></pre>
</div>
</blockquote>
</body>
</html>