SFPE Handbook | Ch. 14 | Eq. 14.2 & 14.3

HRR for heat detector response

Calculates the heat release at which a heat detector submerded in the ceiling jet will activate

Reference

Hurley, M.J., et al., 2016. SFPE Handbook of Fire Protection Engineering. 5th ed. Springer.

Equations

\dot{Q} = \left((T-T_\infty) \cdot \dfrac{H^{\frac{5}{3}}}{16.9}\right)^{\frac{3}{2}} or \dot{Q} = \left(\dfrac{(T-T_\infty) \cdot \left(\dfrac{r}{H}\right)^{\frac{2}{3}} \cdot H^{\frac{5}{3}}}{5.38}\right)^{\frac{3}{2}}

OpenFire

HRR for heat detector response

Equations

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