[Equest-users] Steam loop pumping energy
Steven Savich
ssavich at systemswestengineers.com
Tue Oct 14 09:26:48 PDT 2008
David,
Tried that. The program ignores the 0 pump power input and calculates the
required power, even with actual flow and head input. PS-C report still
shows pump energy consumption by the heating water loop pump.
FYI I'm using eQuest ver 3-61e. Do later or earlier versions allow this 0
kW workaround?
Steven
Steven Savich
Systems West Engineers
411 High Street
Eugene, OR 97401-2427
(541) 342-7210
(541) 342-7220 (fax)
_____
From: David S Eldridge [mailto:DSE at grummanbutkus.com]
Sent: Tuesday, October 14, 2008 9:09 AM
To: 'Steven Savich'
Subject: RE: [Equest-users] Steam loop pumping energy
You can use the actual flow and head so the program doesn't crash, but enter
a pump power of 0 kW. "Magic" pump motors.
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Steven
Savich
Sent: Tuesday, October 14, 2008 10:52 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Steam loop pumping energy
All,
I'm modeling a university campus building with heat provided by central
plant steam boilers, providing 15# steam. I've done this by eliminating
boilers in the model and attaching a steam meter to the hot water loop.
My problem is with pumping energy. Equest requires that a pump be attached
to the hot water loop, but the actual installation has gravity return
condensate. How do I zero out the pumping energy? I have set pump head =
0, but this gives me pages of error reports. Any other methods?
Thanks,
Steven
Steven Savich
Systems West Engineers
411 High Street
Eugene, OR 97401-2427
(541) 342-7210
(541) 342-7220 (fax)
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