[Equest-users] EER
Nick Caton
ncaton at smithboucher.com
Wed Mar 2 13:39:41 PST 2011
James,
Kelsey's right - in detailed mode such efficiency measures entered in
wizard mode get split into fan energy (kW/CFM) and heating (EIR/HIR) &
cooling (EIR) efficiencies. If entering values for heating/cooling
efficiency - pay mind to whether fan energy is included in your EER
figures (it usually is), and follow Kelsey's advice to zero out the fan
energy if so.
If you're not in detailed yet, heating and cooling efficiencies are
handled most simply using Wizard Screen 3 of ##:
~Nick
NICK CATON, E.I.T.
PROJECT ENGINEER
Smith & Boucher Engineers
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
www.smithboucher.com
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Kelsey
VanTassel
Sent: Wednesday, March 02, 2011 3:28 PM
To: James Hurley; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] EER
You assign the cooling EIR (inverse of COP) under system>cooling>unitary
power. Technically, you should define the efficiency of the compressor
separately from the fan power, otherwise eQUEST will double-count the
fan energy. If you use an overall system EER, then you should set the
fan power (kW/cfm) to zero.
Furnace efficiency (heat input ratio) is specified under
system>heating>unitary power.
Kelsey Van Tassel
Mechanical Engineer | kvantassel at sustaineng.com
608.836.4488 ext. 20 | Fax: 608.836.4477
Sustainable Engineering Group
901 Deming Way, Suite 201
Madison, WI 53717
www.sustaineng.com <http://www.sustaineng.com/>
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of James
Hurley
Sent: Wednesday, March 02, 2011 3:07 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] EER
Where in eQuest can you assign an EER of a DX coil or the Efficiency of
a furnace?
JAMES HURLEY
Kohler Ronan, LLC | www.kohlerronan.com <http://www.kohlerronan.com>
jhurley at kohlerronan.com <mailto:jhurley at kohlerronan.com>
1370 Broadway, New York, NY 10018
212.695.2422 F 212.695.2423
301 Main Street, Danbury, CT 06810
203.778.1017 F 203.778.1018
Please consider the environment before printing this e-mail.
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