Ceiling-jet thickness and vertical distribution along flat-ceilinged horizontal tunnel with natural ventilation

摘要

A series of fire tests was conducted in a 10.0 m (L) x 0.75 m (W) x 0.45 m (H) model tunnel with a rectangular cross section, and detailed measurements were taken of the temperature and velocity within a quasi-steady state fire-driven ceiling-jet running along the centre of a ceiling.