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<DIV><FONT face=Arial size=2><SPAN class=320024015-05072005>NREL researchers
<SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Craig
Christensen and Jay Burch </SPAN>put together a useful correlation for mains
water temperature for the Building America Benchmark. It is in the
conference paper:</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320024015-05072005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=320024015-05072005><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Hendron,
R., Anderson, R., Christensen, C., Eastment, M., and Reeves, P.<SPAN
style="mso-spacerun: yes"> </SPAN>2004.<SPAN
style="mso-spacerun: yes"> </SPAN>"Development of an Energy Savings
Benchmark for All Residential End-Uses", <U>Proceedings of SimBuild 2004</U>,
IBPSA-USA National Conference, Boulder, CO, August 4 - 6, 2004.
</SPAN></SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320024015-05072005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=320024015-05072005>The correlation is
also now in EnergyPlus V1.2.2 and documented in the Engineering
Reference.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320024015-05072005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=320024015-05072005>Brent</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=320024015-05072005></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=320024015-05072005></SPAN></FONT> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> postman@gard.com
[mailto:postman@gard.com]<B>On Behalf Of </B>Rich Brown<BR><B>Sent:</B>
Wednesday, June 29, 2005 12:26 PM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] Inlet water
temperatures<BR><BR></FONT></DIV><!-- Converted from text/enriched format -->
<DIV>For the purposes of modeling residential water heating energy use, </DIV>
<DIV>can anyone suggest a source for annual average water inlet temps </DIV>
<DIV>(from the municipal water system)? </DIV>
<DIV>I've been using the annual average outdoor dry-bulb (offset by a few
degrees) </DIV>
<DIV>or estimated shallow ground temperatures in the TMY2 files, but these
don't </DIV>
<DIV>seem to give plausible values in cold climates like Alaska </DIV>
<DIV>(annual averages are well below freezing, even at 4m depth). </DIV>
<DIV>(a related question might be how they get piped water in places with
ground </DIV>
<DIV>temperatures that low). </DIV><BR>
<DIV>thanks, </DIV>
<DIV>Rich Brown </DIV>
<DIV><SMALL>---------------------------------------------------------------
</DIV>
<DIV>Rich Brown * REBrown@lbl.gov </DIV>
<DIV>Energy Analysis Department * Phone: (510) 486-5896 </DIV>
<DIV>Lawrence Berkeley National Laboratory * Fax: (510) 486-4247 </DIV>
<DIV>---------------------------------------------------------------</SMALL></DIV></BLOCKQUOTE><PRE>
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