[BLDG-SIM] equest - select eir & hir questions
Dahlstrom, Aaron
ADahlstrom at AKF-ENG.com
Thu Nov 29 09:15:04 PST 2007
Kevin,
The 90.1-04 Users Manual offers some good guidance on EER to EIR
conversions.
Check out pp 11-17 thru 11-19 for formulas, descriptions, and example
calculations.
Aaron Dahlstrom
AKF Engineers, LLP
1500 Walnut Street, Suite 1400
Philadelphia, PA 19102
Phone: (215) 282-2169
Fax: (215) 735-6706
<mailto:adahlstrom at akf-eng.com> adahlstrom at akf-eng.com
-----Original Message-----
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Kevin
Kyte
Sent: Thursday, November 29, 2007 10:31 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] equest - select eir & hir questions
I need to be schooled in electric input ratio and heat input ratio for
all equipment types: Airside and waterside.
Airside - packaged units: Where does one find a COP for a DX cooling
unit? I have only seen SEER or EER. Then I have seen this equation
from archive files,
Cooling EIR = 0.941 * (1/(SEER/3.413)). Is this the correct equation?
It was taken from the link:
http://www.gard.com/ml/bldg-sim-archive/msg01626.html.
How about conversion of EER to SEER? I think I understand HIR = btu
input/btu output?
Waterside - chillers: chiller EIR = 1/ COP, I was also told EIR =
chiller kW *3413 / capacity. Is this the same, which is correct?
HIR = heat input/ cooling capacity. Isn't COP the Output / input? So
wouldn't HIR be 1/ COP then. This is quite confusing and going nowhere
for me, would someone please clarify.
Kevin Kyte, LEED AP
Jr. Mechanical Engineer
RobsonWoese, Inc.
T: 716-636-1800
F: 716-636-1856
==================
You received this e-mail because you are subscribed
to the BLDG-SIM at GARD.COM mailing list. To unsubscribe
from this mailing list send a blank message to
BLDG-SIM-UNSUBSCRIBE at GARD.COM
===========================
You received this e-mail because you are subscribed
to the BLDG-SIM at GARD.COM mailing list. To unsubscribe
from this mailing list send a blank message to
BLDG-SIM-UNSUBSCRIBE at GARD.COM
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20071129/04606d40/attachment-0002.htm>
More information about the Bldg-sim
mailing list