PD 7974-1 | Eq. 4 & 33

Maximum HRR in a compartment fire

Calculates the maximum HRR for a compartment fire, comparing fuel-controlled and ventilation-controlled conditions

Reference

BSI, 2019. PD 7974-1: Application of Fire Safety Engineering Principles to the Design of Buildings - Initiation and Development of Fire within the Enclosure of Origin (Sub-system 1). BSI

Equations

Input | Eq. 33

\dot{Q}_{max, \space VC} = 1500 \cdot A_v \cdot H_v^{1/2}

Input | Eq. 4 (Optional)

\dot{Q}_{max, \space FC} = A_f \cdot HRRPUA

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Maximum HRR in a compartment fire

Equations

Input | Eq. 33

Input | Eq. 4 (Optional)

Inputs