Fire Safety Science Digital Archive

A new method is proposed to determine the thermal interface height for transient development in forced-ventilation enclosure fires. The method is based on the assumption of a vertical temperature gradient in the hot upper region and is based on mathematical considerations. The results of this new method are compared with the experimental data obtained during recent experiments on forced-ventilation enclosure fires carried out in IPSN facilities. These results are also compared to those obtained by the mass equivalency method [I] and show that the new method leads to better predictions of interface height and temperature profiles.