[BLDG-SIM] Stack Effect Calculations

[Leonard Sciarra]

Steve, I do not know if you subscribe to the bldg-sim list serve, but would you be able to shed any light on this?
 
Leonard Sciarra, AIA, LEED ap
312.577.6580 (Dir)
G E N S L E R | Architecture & Design Worldwide
30 West Monroe Street
Chicago IL, 60603
312.456.0123
leonard_sciarra at gensler.com 

________________________________

From: BLDG-SIM at gard.com on behalf of Kevin Burke
Sent: Wed 8/22/2007 10:11 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Stack Effect Calculations



Dear All,

 

I'm currently looking at problems which may arise due to stack effect in a high rise mixed use building in London. Although most tall buildings these days have relatively good air tightness the proposed building will have the possibility of air penetrating the office façades from about 20m to 100m (70ft to 330ft) and again where there is apartments from 180m to 230m (600ft to 760ft). It is also possible that significant infiltration will occur at the top of the building. A number of lift shafts and stairwells under worst case situations allow this air to travel the full or close to the full height of the building. 

I have found a number of papers which discuss this topic but I haven't come across a means of quickly estimating worst case scenario pressure differences for individual lift shaft or stairwells. Does anyone know of a calculation tool or similar which could do this. I have downloaded a program called COMTAMW. Does anyone know if this is a useful programme for proposed buildings where all the parameters are not know and may have to be estimated?

 

Kind Regards,

 

Kevin Burke

 

 

 

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