[bldg-sim] Simulation of Ice Storage in Equest
David S Eldridge
DSE at grummanbutkus.com
Mon Dec 5 07:26:17 PST 2005
Make two separate chillers, and have them scheduled for availability
such that the one with the performance curves for ice is available
during your ice-build times, and the "standard" performance machine is
available during other times.
I haven't looked at an ice-building performance curve yet, but even if
the curves are similar, the EIR and capacity for the two cases will be
different.
Hope this helps!
David
--------------------------------------------------------------
David S. Eldridge, Jr.
Project Engineer
LEED v2.0 Accredited Professional
Grumman/Butkus Associates
820 Davis St., Suite 300
Evanston, IL 60201
847.328.3555 ext. 224
dse at grummanbutkus.com
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________________________________
From: bldg-sim at gard.com [mailto:bldg-sim at gard.com] On Behalf Of
Gang Wu
Sent: Sunday, December 04, 2005 8:33 PM
To: bldg-sim at gard.com
Subject: [bldg-sim] Simulation of Ice Storage in Equest
Hi folks,
I am simulating a partial ice-storage system using Equest. One
of the
chillers in the plant has to operate under low temperature to
make ice
during off-peak hours, while during on-peak hours it runs under
high
temperature to supply chilled water to coils. To my knowledge it
shoulf
be a dual-condition chiller, screw or centrifugal type.
I am wondering how I can model this dual-condition chiller in
Equest.
Can one performance curve represent the chiller's performance of
making
both ice and chilled water? If my understanding is correct,
each
chiller in Equest can only be assigned with one performance
curve.
I highly appreciate if any expert provide some successful
examples of
both ice-storage simulation and that dual-condition chiller
curve.
Best,
Glenn Wu
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