<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Cambria;
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;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
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;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</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]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>I
think this is a wonderful time to be in the HVAC industry. New tools are
changing the outdated, over simplified tools and methods used in the past (and
present). I would like to make one comment on the below message. The sentence “</span><span
style='font-family:"Cambria","serif";color:black'>Building occupants are
intolerant of too hot and too cold.” This is one good example of the
changing attitudes in the building industry. Resent research suggest that this sentence
should really read “ Building occupants <i>with no control over their
environment</i> are intolerant to too hot or too cold”. When
occupants know they can control their environment (maybe with a window) they
will dress accordingly and expand their comfort zone. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>On a
“right sizing” note, I do believe if owners would like to get
aggressive and truly right size equipment they will also need to shoulder the
possible risks, i.e. 10 or 20 hours out of the year you may not be able to
keep your cooling set point. Its energy modeling that will quantity these
risks and size these systems, not a side ruler and a design day (hour).<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>This
exchange has been a nice change of pace from locating weather files. It’s
very interesting to learn other current points of view in our industry,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Cambria","serif";color:black'>Best
Regards,</span><span style='font-family:"Cambria","serif";color:black'><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:10.0pt;font-family:"Arial","sans-serif";
color:black'>Brad Acker, P.E.<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>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Carol
Gardner<br>
<b>Sent:</b> Monday, May 24, 2010 12:07 PM<br>
<b>To:</b> eQUEST Users List; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] Right sizing of equipment aka sleeping giant<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>All,<br>
<br>
Should always be the goal but it is soooo hard to define. I have worked on tiny
commercial buildings as well as huge commercial buildings. All types. Right
sizing is always my goal and as far as I know is always the goal of the ME's.
It was mine when I did HVAC design work. Building occupants are intolerant of
too hot and too cold. And, in a building of any size with more than one person
in it you will find disagreement about whether it is too hot or too cold at
least some of the time. So what do you do? Especially if you are just the
hapless, overworked, under paid energy modeler? You can see my project list if
you want to. If you listen closely you will hear whatever opinion you want to
hear about me and my work. Thank god for VFDs, VRVs and EC motors, eh?<br
clear=all>
<br>
-- <br>
Carol Gardner PE<o:p></o:p></p>
</div>
</body>
</html>