Abstract
Experiments have been carried out in a specially designed 36 m2 compartment. The experimental results show the main phenomena during the fire and smoke propagation in the compartment before sprinkler activation and additionally the interaction between the hot flue gases in the smoke layer and the water spray. The axial temperature profiles at three characteristic positions inside the compartment were measured. A comparison of a standard sprinkler and a High-Pressure Water Mist system (HPWM) revealed two different phenomena, which are flue gas scrubbing and recirculation motion, respectively – both eventually leading to an increased smoke obscuration inside the compartment.
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