[Equest-users] Fan Motor Efficiency Change

[John Aulbach]

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

________________________________

PartnerEnergy
1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745
www.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] 
>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] 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 | jaulbach at ptrenergy.com
> 
> 
> 
> 
>
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Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel.  416-203-7465
Fax. 416-946-1005


      
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