[BLDG-SIM] 90.1 Appendix G fan power

[Ellen Franconi]

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

  _____  

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


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