Radiative heat transfer methodologies from compartment fires to adjacent walls: A Numerical Investigation

Abstract

In a fire scenario, the externally ventilating flames (EVF) often project beyond the compartment of fire origin and in some cases boundary distances, increasing the likelihood of fire spread between buildings. This work investigates various numerical methodologies to predict radiative heat transfer from compartment fires to adjacent walls at different orientations (20, 40, 60 and 80 degrees). Predictions were compared to empirically derived equations. Results show that code compliant scenarios may still exceed critical heat flux recommendations. Furthermore, the effects of prolonged heat exposure and materials should be considered by designers.