Big Green: Natural Ventilation

[BROOKS, PETER]

Mark

An Architects solution would be to look at the site orientation, for sun
and wind patterns. Design a "solar chimney" based on solar heated hot
air rising and exhausting. This should be placed so the prevailing winds
in warm weather will supplement the effect. Provide make up air vent
with damper to close during colder weather. Orient the windows to
provide solar gain to warm the passage and some thermal mass to prevent
drastic temp fluctuations. 

Sounds easy, but it's not. 600 feet is a long passage, but it is a
transition space where people will not be for a long time. This is a
good project for fine tuning a natural ventilation system.

 

Peter Brooks AIA, LEED AP     

 

________________________________

From: biggreen-bounces at lists.biggreen.org
[mailto:biggreen-bounces at lists.biggreen.org] On Behalf Of Zoeteman, Mark
R.
Sent: Thursday, September 07, 2006 8:24 AM
To: BigGreen
Subject: Big Green: Natural Ventilation

 

Is anyone aware of a method to introduce natural ventilation through a
structure passively? We want to ventilate a 600 foot long, 12 foot wide,
elevated enclosed walkway without adding complex motors and contols.
Manual operable windows are not an option as this is a municipal owned
walkway and maintenance staff is not available to open/close windows. Is
their a gravity-based damper arrangement that might work, introduce air
low and relieve high on opposite side? Location is northern climate,
therefore system would need to close during cold outdoor air
temperatures.

Mark Zoeteman 
FTC&H, Inc. 
(616) 464-3739 
mrzoeteman at ftch.com 

 

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