Abstract
Fire hazard is one of the major causes of fatalities in the industries and residential areas. The fire hazard in corridors/chambers is caused by the rapid rise of temperatures and presence of high concentrations of toxic gases like CO and smoke. In this study, numerical simulation is conducted with different ventilation conditions to investigate fire behaviour inside the confined area. Fire Dynamic Simulator (FDS) is used for fire simulation studies to predict the fire behaviour inside the corridor. Further, the pyrolysis model is incorporated to study the rate of evaporation of heptane liquid fuel on burning. The size of corridor is 2.5 m long, 1.5 m wide and 1 m high. The vent is at front and back wall to provide the cross-ventilation conditions in case of Test 1. In Test 2 condition, both vents is closed only 5 cm gap has been provided at the centerline of back wall and test 3 one side closed (back wall).The test room is constructed with concrete and bricks. The fire source is created at the corner of the corridor using heptane fuel. The heat release rate, temperature at the different locations: at ceilings and vents and velocity and concentration of O2, CO2, and CO are predicated at different test conditions. The maximum heat release rate is found to be 62 kW, 45 kW, and 69 kW in Test 1, Test 2, and Test 3 respectively. The maximum temperature is found to be 92 °C, 215 °C and 152 °C near to fire source in case of Test 1, Test 2 and Test 3 respectively. In Test 2, has low ventilation conditions, oxygen gets limited to 6%, however in case of Test 1 and Test 3 it maintains at 18% during the test period.
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The authors acknowledge the Late Prof. Shashi for her guidance, Department of Chemical Engineering, IIT Roorkee, Roorkee, India.
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Sahu, D., Bahman, A., Dhurandher, B.K. et al. Numerical studies on fire development inside the corridor. Int J Syst Assur Eng Manag (2022). https://doi.org/10.1007/s13198-022-01712-3
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DOI: https://doi.org/10.1007/s13198-022-01712-3