In this study, fire phenomena in the multi-compartment connected through a vertical opening were experimentally and numerically investigated. Two compartments connected with two vertical openings were tested. One vertical opening(VO1) is installed bet...
In this study, fire phenomena in the multi-compartment connected through a vertical opening were experimentally and numerically investigated. Two compartments connected with two vertical openings were tested. One vertical opening(VO1) is installed between two compartments (i.e., ROOM1 and ROOM2) and one(ROOM2) of compartments has the additional vertical opening(VO2) connected to the outside of compartment. In the cases of fires occurring in ROOM1 and ROOM2, the fire phenomena in fire room and adjacent room were examined. Under three heat release rate(HRR) conditions, the velocity distribution, mass flow rate passing through vertical opening, temperature distribution, and thickness and temperature rise of hot gas layer were measured and analyzed. The numerical simulation data were quantitatively compared with the experimental data and the dependences of hot gas layer thickness and temperature rise on HRR were checked. In addition to HRR effect, the effects of compartment wall material and widths of VO1 and VO2 were explored. Moreover, the previous correlation to predict the hot gas temperature rise in adjacent room was assessed and previous correlation found to underpredict the present data. Hence, based on the present data, new prediction correlations for the hot gas temperature rises in fire room and adjacent rooms were proposed.