Post-flashover compartment fires-application of a theoretical model

Numerical solutions of the post‐flashover fire are considered and a computer program is presented. The solutions are compared with experiment and the sensitivity of the solutions to a number of variables is discussed. It is shown that increasing the ventilation may either increase or decrease fire intensity, and the importasnce of the ventilation controlled phase of the fire is discussed. Application of the model to calculate the expected time‐temperature history is illustrated and its significance is discussed. The deterministic approach is compared with a new method for calculating the most severe fire by letting one variable take any value between certain limits. The latter method is called pessimization. The significance for designers is noted.