Experimental analysis of effect of initial pressure on hydrogen combustion
1. Engineering Economy and Management Training Center, Chongqing University of Technology, Chongqing 400054, China; 2. Nuclear Power Institute of China, Chengdu, Sichuan 610041, China
Abstract：The hydrogen combustion test loop was constructed, and the experimental data of hydrogen combustion temperature, pressure and burnout rate at different initial pressures were obtained. The velocity of hydrogen flame propagation was obtained by calculating the relationship between extreme value of temperature curve of thermocouple and time. The effects of initial pressure on the flame propagation speed, the maximum combustion temperature, the peak pressure and the hydrogen burnout rate of hydrogen combustion were investigated. The results show that the flame propagation rate is increased, and the maximum temperature is decreased with the increasing of initial pressure at low hydrogen volume concentration. At high hydrogen volume concentration, the flame propagation rate is decreased slightly, and the maximum temperature is increased with the increasing of initial pressure. The initial pressure has slight effect on the maximum temperature in the combustion process. The peak pressure is increased with the increasing of initial pressure, and the initial pressure has no effect on the burnout rate of hydrogen.
2018, Vol. 39 
