[Equest-users] Fan Motor Efficiency Change
Michael Andelman
mike at andelmanlelek.com
Thu Jul 29 09:39:46 PDT 2010
Shaded pole motors are typically around 20% efficiency; PSC typically 50%-65% efficiency. ECM motors average are around 75% efficiency.
Mike Andelman
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Thursday, July 29, 2010 12:21 PM
To: Chris Jones; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Fan Motor Efficiency Change
Chris:
These are fractional HP motors. Small motors used to be 84%, but with Electrical commutating motors, I have no idea.
John R. Aulbach, PE, CEM
Senior Energy Engineer
_____
Partner Energy
1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745
<http://www.ptrenergy.com/> www.ptrenergy.com <mailto:%7C%20jaulbach at ptrenergy.com> | jaulbach at ptrenergy.com
_____
From: Chris Jones <cj at enersave.ca>
To: equest-users at lists.onebuilding.org
Sent: Thu, July 29, 2010 8:58:01 AM
Subject: Re: [Equest-users] Fan Motor Efficiency Change
Not entirely on topic but what is a typical fan coil motor efficiency? I have been using 25%.
At 02:11 PM 7/28/2010, John Aulbach wrote:
Thank you, Jeremy. By "plug and chug", that seemed to be the Parameter that changed in running a test building through Standard, High, and Premium Efficiency.
Wouldn't it be nice if some of this stuff was discussed more in the Manuals ??
John
From: Jeremy McClanathan <jmcclanathan at CDiengineers.com>
To: John Aulbach <jra_sac at yahoo.com>; Demba Ndiaye <Demba.Ndiaye at setty.com>; "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>
Sent: Wed, July 28, 2010 10:56:45 AM
Subject: RE: [Equest-users] Fan Motor Efficiency Change
I account for motor eff by changing the total eff, where total eff = motor eff * mech eff. I believe the keyword for total eff in the inp file is SUPPLY-EFF for supply fans.
___________________________________________
Jeremy McClanathan, LEED® AP
CDi ENGINEERS
4200 194th St SW, Ste 200, Lynnwood, WA 98036
P 425-672-1071 | F 425-778-8769
P Please consider the environment before printing this email.
From: John Aulbach [ <mailto:jra_sac at yahoo.com> mailto:jra_sac at yahoo.com]
Sent: Wednesday, July 28, 2010 10:51 AM
To: Demba Ndiaye; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Fan Motor Efficiency Change
Thank you, Demba.
But this is for a PUMP. Not a FAN.
John
From: Demba Ndiaye <Demba.Ndiaye at setty.com>
To: John Aulbach <jra_sac at yahoo.com>; "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>
Sent: Wed, July 28, 2010 10:39:34 AM
Subject: RE: [Equest-users] Fan Motor Efficiency Change
John,
In the INP, it is the “MOTOR-CLASS” input. You see in the INP something like:
FLOW = 300
NUMBER = 1
HEAD = 80
MECH-EFF = 0.776
MOTOR-CLASS = HI-EFF
CAP-CTRL = ONE-SPEED-PUMP
_____________
Demba NDIAYE
From: equest-users-bounces at lists.onebuilding.org [ <mailto:equest-users-bounces at lists.onebuilding.org> mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Wednesday, July 28, 2010 12:34 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Fan Motor Efficiency Change
I should know this one, but draw a blank.
The Wizard asks if you want Standard, Hi Efficiency, or Premium Efficiency motors for your fan system.
How do those show up in the .INP file? That will give me a clue as to what Parameters to modify for changing to PE motors.
Thanks.
John R. Aulbach, PE, CEM
Senior Energy Engineer
Partner Energy
1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745
www.ptrenergy.com <http://www.ptrenergy.com/> | <mailto:%7C%20jaulbach at ptrenergy.com> jaulbach at ptrenergy.com
This email message, including any attachments, is for the sole use of the intended recipient and may contain confidential, proprietary, and/or privileged information, as well as content subject to copyright and other intellectual laws. If you are not the intended recipient, you may not disclose, use, copy, or distribute the email message or its attachments. If you believe you have received this email message in error, please contact the sender by reply email, immediately delete this email and destroy copies.
_______________________________________________
Equest-users mailing list
http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
To unsubscribe from this mailing list send a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel. 416-203-7465
Fax. 416-946-1005
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20100729/d168aa1d/attachment.htm>
More information about the Equest-users
mailing list