Vents design for Natural ventilation 1

[msb01]

Hi,
I am designing a solar passive home. The sunspace on south gets heated and I would like to transfer this warm air to another rooms using vents (No forced ventilation). I was thinking of providing a 2 m2 vents between sunspace and one of the rooms. My question is : How much CFM can be pass through a 2 ft2 vent? is there a way to find it out? I apprecaite any ideas/suggestions..
thanks,
MSB

 

[willard3]

To determine the CFM, you will need energy to overcome the pressure drop.

Where is this energy coming from, stack effect?

 

[msb01]

Yes, that is the intention. The warm air from sunspace will drive the flow..
thanks
MSB

 

[willard3]

Here's a stack effect calculator:

http://www.chuck-wright.com/calculators/stack_effect.html