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Fire Dynamics Tools | Ch. 9 | Eq. 9.4
Effective Diameter
Calculates the effective diameter of a non-circular fire source
Reference
Fire Dynamics Tools (FDTs): Quantitative Fire Hazard Analysis Methods for the U.S. Nuclear Regulatory Commission Fire Protection Inspection Program. NUREG-1805.
Equations
D = (\frac{4 \cdot A_f}{\pi})^{1/2}