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Piston effect pressure difference
sfpe_handbook_chapter_50_piston_effect_pressureUpper limit for the piston effect for an elevator with enclosed lobbies
Equations
\Delta P_{u,ir} = \dfrac{\rho}{2} \cdot \left(\dfrac{A_s \cdot A_e \cdot U}{A_a \cdot A_{ir} \cdot C_c}\right)^2