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I'm working on a system that uses an open loop ground well tied to a
loop-to-loop heat pump (see screen shot below) with Lake/Well loop type
and GSX type. This heat pump serves hot and cold water loops tied to
fan coils. The "ground temp" is water being pulled out of a deep
aquifer and set to 50 deg year round.<br>
<br>
I have gotten the model to run without errors, but I am getting very
high pump energy use from the ground loop. The head and pump sizing
seem high but reasonable, but the flow seems way too high. I'm getting
540 gpm peak and was expecting closer to 300 gpm. This results in 18%
of electricity use going to pumps, 17% going to heating and cooling
combined.<br>
<br>
Any suggestions?<br>
<br>
<img src="cid:part1.06010208.07070207@lseng.com" alt="" width="482"
height="386"><br>
<div class="moz-signature"><br>
<span
style="font-size: 11pt; font-family: Arial; color: black; font-weight: bold;">
Jacob Goodman
</span><span
style="font-size: 8pt; font-family: Arial; color: rgb(102, 102, 102); font-weight: normal;">,
LEED AP, Green Building Specialist
</span><br>
<span
style="font-size: 8pt; font-family: Arial; color: rgb(102, 102, 102); font-weight: normal;">
v:509.280.7051 i:<a href="http://www.lseng.com" border="0"><span
style="color: rgb(102, 102, 102);"><font color="#666666">www.lseng.com</font></span></a></span><br>
<span
style="font-size: 11pt; font-family: Arial; color: rgb(109, 146, 140); font-weight: bold;">
L&S
</span><span
style="font-size: 11pt; font-family: Arial; color: rgb(109, 146, 140); font-weight: bold; letter-spacing: 1pt;"> Engineering
Associates, Inc.
</span><br>
<span
style="font-size: 8pt; font-family: Arial; color: rgb(102, 102, 102); font-weight: normal;">'High
Performance Design'</span>
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