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Abstract

This work aims to study the effective parameters on forced ventilation by which the fire can be put under control. There are many parameters which specify the forced ventilation such as angle of louvers 'supply air grill'; this parameter was investigated experimentally using a modified test rig in order to supply different ventilation rates into the compartment with different angle of louvers 'supply air grill' while different types of fuel with different masses were used. In this paper was concerned on benzene fuel of 13.2 gram when the fuel mass less than 13.2 g no clear differences in temperature distribution. To perform this study a modified test room was designed. Results of the study show that the effect of angle of louvers 'supply air grill' and ventilation rate on fire depression (minimum fire duration) in a compartment is mainly represented in the high values of angle of louvers 'supply air grill' by 75° (equivalent ventilation factor 0.0215 m2) and low values of speed of extracting fans (equivalent ventilation rate 0.067 m³/s) for benzene (gasoline fuel) at different fuel masses. Also, results indicate that a decreasing in angle of louvers 'supply air grill' and increasing in ventilation rates result in undesirable effects as the fire duration increased.

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