[BLDG-SIM] 90.1 Appendix G fan power

Michael Rosenberg Michael.Rosenberg at state.or.us
Thu Jun 14 13:39:50 PDT 2007


David,

ASHRAE has changed the process for Appendix G since it is informative and not normative. It no longer goes out for public review, nor are official addenda issued. It just gets changed. I am not happy about this, and it may change after the June ASHRAE meeting in Long Beach. Anyway, the corresponding changes to G have been incorporated, and will be released soon in the 2007 version. I am not sure how you deal with it in the meantime
 
Mike


Michael Rosenberg
Oregon Department of Energy
625 Marion St. N.E.
Salem, OR 97301-3742
Phone : (503) 373-7809
Fax: (503) 373-7806

>>> "David S Eldridge" <DSE at grummanbutkus.com> 6/14/2007 1:19:08 PM >>>
Can someone point me to the reference where the addendum ac fan power calculation method is incorporated to Appendix G?

I can see how this would tie into the ECB method, but there isn't anything in the addendum document pointing to Appendix G.

Thanks!

 

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Bill Talbert
Sent: Tuesday, June 12, 2007 2:55 PM
To: BLDG-SIM at gard.com 
Subject: [BLDG-SIM] 90.1 Appendix G fan power

 

The final approved version of addendum ac is currently on the ASHRAE website (http://www.ashrae.org/technology/page/132).

 

Bill Talbert, PE, LEED® AP
Mechanical Systems

Phone: (608) 441-6677
E-mail: btalbert at aeieng.com 

Affiliated Engineers Inc.
5802 Research Park Blvd.
Madison, WI. 53719
Tel. (608) 238-2616
Fax. (608) 238-2614



>>> "Ellen Franconi" <efranconi at archenergy.com> 6/12/2007 2:20 PM >>>

In Addendum ac there is an adjustment for energy recovery for the Baseline. This addendum hasn't been adopted yet but it should be soon. 

 

Ellen Franconi, Ph.D.
Energy Analysis Group Manager
Architectural Energy Corporation 
2540 Frontier Avenue, Suite 201 
Boulder, CO 80301 
303-444-4149 
303-444-4304 fax 
http://www.archenergy.com <http://www.archenergy.com/>  

________________________________

   

From: Michael Andelman [mailto:mike at andelmanlelek.com] 
Sent: Friday, June 08, 2007 1:21 PM
To: BLDG-SIM at gard.com 
Subject: [BLDG-SIM] 90.1 Appendix G fan power 

 

ASHRAE 90.1 2004 Appendix G has pressure credits for filters, but not for energy recovery devices. 

Thus, it would appear that any situation where energy recovery is required, the as designed fan system is at a disadvantage since the baseline fan bhp is calculated without any pressure credit, but the as design system is sized to include the pressure drop through the energy recovery device.  I've looked for interpretations on this, but could not find any.  Does anyone know of a ruling on this? 

 

Thanks, 

Mike 


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________ 

 
 
________________________________________________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 
 
 
==================
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



More information about the Bldg-sim mailing list