[Bldg-sim] Appendix G - Fan power

[Tyler Thumma]

That is correct. This issue has been fixed in the updated spreadsheet
attached.

 

Tyler Thumma, EIT, LEED AP

Energy Opportunities, Inc/a 7group Company

1200 E Camping Area Rd, Wellsville, PA 17365

thumma at sevengroup.com

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Rosenberg,
Michael I
Sent: Tuesday, March 08, 2011 12:38 PM
To: jtorres-coto at mbo1.com; 'Sami, Vikram';
'bldg-sim at lists.onebuilding.org'
Subject: Re: [Bldg-sim] Appendix G - Fan power

 

A word of caution if you are using this 2007 tab of this spreadsheet.
The pressure credit is being calculated for the entire supply fan cfm.
It should only be calculated for the design airflow through the device.
While these two airflows can be the same, often they are not. 

 

Mike

 

__________________________

 

Michael Rosenberg, CEM, LEED AP 

Senior Research Scientist

ENERGY & ENVIRONMENT DIRECTORATE 

 

Pacific Northwest National Laboratory 

2032 Todd Street 

Eugene, OR 97405 

(541) 844-1960 

michael.rosenberg at pnl.gov <mailto:michael.rosenberg at pnl.gov>  

www.pnl.gov <http://www.pnl.gov/> 

 

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jorge
Torres-Coto
Sent: Tuesday, March 08, 2011 8:29 AM
To: 'Sami, Vikram'; 'bldg-sim at lists.onebuilding.org'
Subject: Re: [Bldg-sim] Appendix G - Fan power

 

Yes that is correct, the dot means multiplication.

 

The Excel calculator will come in very handy (credit to 7 Group)

 

Jorge E. Torres Coto    

4830 Viewridge Ave.

San Diego, CA 92123

p              858.751.0933

f               858.751.0937

c              858.688.6088

 

________________________________

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Sami,
Vikram
Sent: Tuesday, March 08, 2011 8:11 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Appendix G - Fan power

 

Does the dot in the equation indicate multiplication? So should the
equation read CFMS X 0.0013 + A?

 

The reason I am confused is that they use X in other places. 

 

 

Thanks in advance

We've moved!  Please note our new address. 

Vikram Sami, LEED AP BD+C

Sustainable Design Analyst

1315 Peachtree St. NE, Atlanta, GA 30309

t: 404-443-7462    f: 404.892.5823       e: vikram.sami at perkinswill.com
www.perkinswill.com <http://www.perkinswill.com/> 

Perkins+Will.  Ideas + buildings that honor the broader goals of society

 

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fossil fuel free buildings 

 

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