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Stair well pressurization

Stair well pressurization

Stair well pressurization

(OP)
Hello,
I know there's a formula to calculate pressurization fan for a stair well, but this formula requires a lot of detail information that I don't have e.g. # of doors, leakage area, walls and ceiling surfaces, etc.

Is there a simpler equation that can be used with only cu-ft of the the space?
Thank you

RE: Stair well pressurization

No

RE: Stair well pressurization

Succinctly put Willard!
I concur.
As an aside, I would recommend against sizing systems based on insufficient data. If you're doing budgetary analysis, make some assumptions and do the calculation or use engineering judgement based on past projects.

RE: Stair well pressurization

(OP)
Thank you

RE: Stair well pressurization

Get your hands on Australian Standard 1668.1
It gives a min m/s velocity across open doors and how many doors deemed open and depending on type of pressurisation system

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