[Trace-users] Chilled Water Pumps in TRACE

Snarski, Marty msnarski at shwgroup.com
Thu May 27 05:30:19 PDT 2010

Hello, All.


I'm hoping someone out there can help me with this.


When trying to model the chilled water pumps in TRACE, I see in Appendix
G, G3.1.3.10, of course it says 22 W/gpm.


What I've done in the past (similar to what I do for the Hot Water
pumps, is sum up the Cooling Coil Capacities, use the good old
Q=500(GPM)dT, to get my GPM, and then multiply that by 22.  My question
is, that if the cooling capacity is greater than 300, it's supposed to
be modeled as primary/secondary.  What is the most appropriate way to
model the energy breakdown in Trace?





Martin Snarski   LEED(r) AP 
Mechanical Engineer 



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