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RE: [EnergyPlus_Support] stack effect
Norm Bourassa at LBNL did this type of analysis for a project of ours that
had a passive thermal tower using COMIS and EnergyPlus. The results
corroborated with our analysis using our ROOM software and hand
calculations. You may want to contact him for insight into the modeling:
NJBourassa@xxxxxxx <mailto:NJBourassa@xxxxxxx>
Peter Alspach
Arup - San Francisco
-----Original Message-----
From: Mohit Mehta [mailto:mohitmehta1@xxxxxxxxx]
Sent: Tuesday, July 01, 2003 7:46 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] stack effect
suggestions please:
large veritcal openings can have air flow moving simultaneously in two
different directions depending on stack effects and wind conditions (for eg.
flow from inside to outside at the top of a window, and from outside to
inside at the bottom) - I/O manual (energyplus)
CAN it also suggest/model that air be coming in from vertical openings on
the lower floors and moving up a stack (modeled as large cracks) to exit out
the tower/chimney or one of the top floors if stack effect/wind pressures
are not conducive??
i am also trying to see if this high mass section (attached) will run
passively in a given climate or whether an installation of extract fans be
required at certain times to facilitate air flow from the perimeter openings
at the lower levels. WOULD this be possible in EnergyPlus (COMIS). if yes,
then how reliable would the results be?
thank you, ~mohit
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