[Bldg-sim] FW:

[Michael Tillou]

The increase in heating energy is most likely the result of additional
boiler energy required to offset the reduced motor/pump heat being
transfered to the working fluid when you switched from a constant volume to
a variable volume pumping scheme.
 
Mike
 
Michael Tillou, PE, LEED
P: 413-458-9870 C: 413-652-1087
 

  _____  

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Shruti
Kasarekar
Sent: Friday, February 22, 2008 12:09 AM
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] FW:


Hello All,

I am modeling a 2 pipe FCU and when I change the 3 way valves to 2 way w/ a
VFD on Pump, I see a considerable increase in Space Heating. I checked that
the load on my coils is changing. Why? I did not change any other
parameters. Any ideas?

Thanks.

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