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Brian:
I was
taught a trick by an old dog, Mr.. Bruce Birdsall of Lawrence Berkeley Labs, who
was in on the original creation of DOE-2. along with Fred Winkleman, Jeff
Hirsch, and Fred Buhl. HELLO to all of these
people.
Bruce
told me to use an induction system in the guest rooms (I was heavily into Hilton
Hotels at the time). Such a system allowed primary and secondary heating and
cooling coils, and by using the bypass ratio, allowed outside air to
entrain. I don't have time to research the exact bypass ration, or all the stuff
I did (it was in DOE-2.1C version).
But
that would allow you to use outside air with virtually a fan coil system, either
two or four pipe. Then the corridor air is on it's own loads and
system.
Try
it.
-----Original
Message-----
From: Brian Fountain
[mailto:greensim@xxxxxxxxxx]
Sent: Wednesday, December 10, 2003 1:15
PM
To: BLDG-SIM@xxxxxxxx
Subject: [BLDG-SIM] Simulating
in-suite HRV's on FC type systems using eQUEST
I am using eQUEST to model a
high-rise multi-unit residential building (in a cold climate). The
mechanical system most likely for selection will include 2-pipe fan coils
(with a supplementary electric coil) in the suites and a corridor make-up air
unit. The in-suite fan coils under consideration have an outdoor air
intake and an air-to-air heat exchanger to recover heat from the suite
washroom exhaust. This is not how the FC fan coil system is set up in
DOE 2.2 - and there is no provision for heat recovery at the fan-coil
level. I am using the OA-FROM-SYS keyword which moves the entire
ventilation load to the corridor make-up air system where heat recovery can be
applied. Doing this appears to greatly improve the energy performance of
the building. I am wondering if modeling the system in this was is
over-stating performance of the heat recovery.
I am wondering if there is
experience within the group to better model such a system. Any
assistance would be greatly appreciated.
Kind regards,
Brian Fountain,
P.Eng.
Energy Engineer
GreenSim
(905)639-6014 --
voice
(905)639-0443 --
fax
bfountain@xxxxxxxxxx
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