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《Journal of Zhejiang University(Engineering Science)》 2005-08
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Temperature profiles of porous media combustor with reciprocating flow system

LI Hao, CHENG Le-ming, WANG En-yu, CHU Jin-hua, LUO Zhong-yang, CEN Ke-fa(State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China)  
Temperature profiles of premixed natural gas combustion in a porous media combustor with reciprocating flow system were studied experimentally. The effects of equivalent ratio, on-off time period of control valve and gas superficial velocity on the temperature profiles were investigated. The on-off period had strong influence on the exit gas temperature of the combustor. As the combustor system ran periodically, the temperatures in the porous media varied periodically also. When the equivalent ratio was in the range of 0.3-1.4, the temperature in the porous media increased to a certain level and then decreased with the increase of equivalent ratio. The temperature in the porous media increased with the increase of gas superficial velocity while the equivalent ratio and the on-off period kept constant. If the equivalent ratio and the gas flux remained unchanging, the temperature in the porous media increased with then decreased with the increase of on-off period and finally reached a certain level. Comparison to the single flow combustion showed that the temperature profiles of the reciprocating flow combustion had smoother distribution.
【Fund】: 国家自然科学基金资助项目(50176043).
【CateGory Index】: TK16
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