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Hello,

I'm using Energy+ (self-taught) to help us design a small home in the countryside. I have an L-shaped open plan kitchen+living space that I split into two rectangular zones using an AirBoundary wall (making them convex to have FullInteriorAndExteriorWithReflections running). I am also using AirflowNetwork to simulate natural ventilation.

Somewhere on the internet (I can't find the link anymore) I read that I could use an AirflowNetwork:MultiZone:Surface:Crack with the AirBoundary wall to have the air flowing through it.

Doubts:

1 - is it indeed okay to emulate a big opening with an AirflowNetwork:MultiZone:Surface:Crack?

2 - If so, what would be reasonable values of Air Mass Flow Coefficient and Air Mass Flow Exponent? I could not find an example for this case in the ExampleFiles.

Thank you.

Hello,

I'm using Energy+ (self-taught) to help us design a small home in the countryside. I have an L-shaped open plan kitchen+living space that I split into two rectangular zones using an AirBoundary wall (making them convex to have FullInteriorAndExteriorWithReflections running). I am also using AirflowNetwork to simulate natural ventilation.

Somewhere on the internet (I can't find the link anymore) I read that I could use an AirflowNetwork:MultiZone:Surface:Crack with the AirBoundary wall to have the air flowing through it.

Doubts:

1 - is it indeed okay to emulate a big opening with an AirflowNetwork:MultiZone:Surface:Crack?

2 - If so, what would be reasonable values of Air Mass Flow Coefficient and Air Mass Flow Exponent? I could not find an example for this case in the ExampleFiles.

Thank you.

Hello,

I'm using Energy+ (self-taught) to help us design a small home in the countryside. I have an L-shaped open plan kitchen+living space that I split into two rectangular zones using an AirBoundary wall (making them convex to have FullInteriorAndExteriorWithReflections running). I am also using AirflowNetwork to simulate natural ventilation.

Somewhere on the internet (I can't find the link anymore) I read that I could use an AirflowNetwork:MultiZone:Surface:Crack with the AirBoundary wall to have the air flowing through it.

Doubts:

1 - is it indeed okay to emulate a big opening with an AirflowNetwork:MultiZone:Surface:Crack?

2 - If so, what would be reasonable values of Air Mass Flow Coefficient and Air Mass Flow Exponent? I could not find an example for this case in the ExampleFiles.

Thank you.