[Bldg-sim] Any clues? -- Ceiling Fans in South East Asia

[Leonard Sciarra]

There was just an ashrae journal May 2009.

 

 

Leonard Sciarra 
Senior Associate 
+1 (312) 577.6580 Direct 
 

Gensler 
11 East Madison Street
Suite 300 
Chicago IL 60602 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Cramer
Silkworth
Sent: Thursday, June 25, 2009 8:56 AM
To: bldg-sim at lists.onebuilding.org; near_ej at yahoo.com
Cc: vishnu at kalpakrit.com; sanjay at kalpakrit.com
Subject: Re: [Bldg-sim] Any clues? -- Ceiling Fans in South East Asia

 

Neeraj, 

  

Look into ASHRAE Standard 55, and also the ASHRAE Fundamentals Handbook.
P. Ole Fanger's work is, well, the Standard. And I think Standard 55 is
being updated soon, to better account for air motion effects. I think I
saw something about this in the last issue of the ASHRAE Journal. 

  

http://www.ashrae.org/ 

  

-Cramer 

  

J. Cramer Silkworth 

Transsolar Inc. 

Technical consulting for energy efficiency and user comfort in
buildings. Stuttgart - Munich - New York 

134 Spring Street Suite 601 

New York, NY 10012 

212-219-2255 

silkworth at transsolar.com 

 

________________________________

   From: \ [mailto:near_ej at yahoo.com] 
Sent: Thursday, June 25, 2009 6:14 AM
To: bldg-sim at lists.onebuilding.org
Cc: vishnu at kalpakrit.com; sanjay at kalpakrit.com
Subject: [Bldg-sim] Any clues? -- Ceiling Fans in South East Asia

Dear all,

Is there a (well documented) relationship between convective air flow
against the skin versus the thermal comfort expectation lowered
(theoretical deg. F raised for zone thermostat set-point)?

I am trying to ascertain the cooling benefit of low power high-speed
ceiling fans that are prevalent in South-East Asia. They are especially
useful in better air distribution and heat transfer from the skin of the
occupants via convection. For modeling the strategy is going to be two
fold -- [1] model the actual (low) fan power for the fans in each space
considered, and [2] model a different (higher) thermostat set-point
expectation since thermal comfort cannot be modeled in eQuest. Does this
seem okay? -- Looking for peer validation.

Thanks in advance.

regards,
Neeraj

Neeraj Kapoor
t: +91.99581.70018
Kalpakrit Sustainable Environments Pvt. Ltd.
New Delhi, India





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