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<p class=MsoNormal>I’m looking at utility data for a building on a college
campus that has a central utility plant. They list cooling energy in ton-hrs
and It seems really high for all buildings across the board. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>However – if you assume that ton-hrs is the metered
chilled water usage and not the chiller energy, its not that bad. For example
if the chilled water usage is 1 ton-hrs, that’s 12,000 BTU’s of cooling
energy delivered. However, if whats being measured is chilled water usage (and
not chiller energy), then 1 ton-hr is not the energy consumed by the chiller –
that should be 12,000BTU/COP of the chiller. So if the chiller COP is 4 –
then that’s only 3,000 BTU’s of energy consumed to deliver that
ton-hr.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>So – to get to the point – does anyone know if
campuses monitor their chilled water usage (in ton-hrs) as chiller energy or
cooling delivered?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>(I hope this makes snese)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-autospace:none'><b><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>Vikram Sami</span></b><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>, LEED AP<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>Sustainable Design Analyst<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>1382 Peachtree St. NE, Atlanta, GA
30309<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'>t: 404-443-7462
f: </span><span lang=ES style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:gray'>404.892.5823 </span><span style='font-size:9.0pt;
font-family:"Arial","sans-serif";color:gray'> e:
vikram.sami@perkinswill.com </span><a
href="http://www.perkinswill.com/"><span style='font-size:9.0pt;font-family:
"Arial","sans-serif";color:gray;text-decoration:none'>www.perkinswill.com</span></a><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:3.0pt;text-autospace:none'><b><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'>Perkins+Will.</span></b><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:gray'> </span><span
style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#ADD425'>Ideas +
buildings that honor the broader goals of society</span><span style='font-size:
9.0pt;font-family:"Arial","sans-serif";color:green'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><b><span style='font-size:8.0pt;
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color:gray'>Years of Design Innovation</span><b><span style='font-size:8.0pt;
font-family:"Arial","sans-serif";color:gray'><o:p></o:p></span></b></p>
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