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SFPE Handbook | Ch. 50 | Eq. 50.7
Effective area of elevator shaft
Calculates the effective leakage area for pressurization systems
Reference
Hurley, M.J., et al., 2016. SFPE Handbook of Fire Protection Engineering. 5th ed. Springer.
Equations
A_{e} = \left(\dfrac{1}{A_{sr}}^2 + \dfrac{1}{A_{ir}}^2 + \dfrac{1}{A_{io}}^2\right)^{-0.5}