<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="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 11 (filtered medium)">
<style>
<!--
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
text-align:justify;
line-height:150%;
font-size:11.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:Arial;
color:windowtext;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="2050" />
</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><font size=2 face=Arial><span style='font-size:10.0pt;
line-height:150%;font-family:Arial'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
line-height:150%;font-family:Arial'>Using DOE2.1E, I am trying to simulate DHW
energy usage that uses utility plant steam and a steam/hot water converter.
Utility plant steam is also used as the heat source for the building’s
hydronic heating systems. We can simulate the steam use for the
building’s hydronic systems by specifying a steam utility rate without
assigning a boiler. With this arrangement, we then proceed to add a domestic
hot water heater but steam is not allowed in the program as a fuel source for
the DHW heater. If we were to create a HW boiler and use it to emulate the DHW
heater, we can choose a steam meter for it but the program defaults to natural
gas as energy source regardless of the type of meter selected. A big problem
with this method is that the program will use the HW boiler to satisfy the
building’s hydronic loads and not for DHW use. I’ll start thinking
along the lines of Load Assignment but am not very familiar with the
programming language associated with it. I do know that DOE2.1E forbids the use
of load assignments for DHW heaters.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
line-height:150%;font-family:Arial'>If anyone has an idea of how to tackle this
or has had similar experience, please don’t hesitate to reply.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
line-height:150%;font-family:Arial'>Thanks!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
line-height:150%;font-family:Arial'>-Ivy<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
line-height:150%;font-family:Arial'><o:p> </o:p></span></font></p>
</div>
<PRE>
===========================
You received this e-mail because you are subscribed
to the BLDG-SIM@GARD.COM mailing list. To unsubscribe
from this mailing list send a blank message to
BLDG-SIM-UNSUBSCRIBE@GARD.COM
</PRE></body>
</html>