Combustion Characteristics of a Helmholtz-Type Valveless Self-Excited Pulse Combustor
Combustion characteristics of a Helmholtz-type valveless self-excited pulse combustor with continuous supply of gas and air were studied. The physical and mathematical models are established based on the actual pulse combustor, and the combustion characteristics are simulated with CFD. The results s...
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Published in | Applied Mechanics and Materials Vol. 291-294; pp. 1719 - 1722 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
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Trans Tech Publications Ltd
01.01.2013
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Abstract | Combustion characteristics of a Helmholtz-type valveless self-excited pulse combustor with continuous supply of gas and air were studied. The physical and mathematical models are established based on the actual pulse combustor, and the combustion characteristics are simulated with CFD. The results show that the possible re-ignition sources for the pulse combustion may be three. The first source may be the hot remnant gas near gas/air mixture. The second re-ignition source may be the high-temperature combustion chamber wall. The third ignition source is the unburned mixture. The pressure, temperature and mass fraction of propane in the combustion chamber have the phase relations and the combustion process stimulates the acoustic oscillation. |
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AbstractList | Combustion characteristics of a Helmholtz-type valveless self-excited pulse combustor with continuous supply of gas and air were studied. The physical and mathematical models are established based on the actual pulse combustor, and the combustion characteristics are simulated with CFD. The results show that the possible re-ignition sources for the pulse combustion may be three. The first source may be the hot remnant gas near gas/air mixture. The second re-ignition source may be the high-temperature combustion chamber wall. The third ignition source is the unburned mixture. The pressure, temperature and mass fraction of propane in the combustion chamber have the phase relations and the combustion process stimulates the acoustic oscillation. |
Author | Qian, Yu Fen Xu, Ti Hai Xu, Yan Ying |
Author_xml | – givenname: Yan Ying surname: Xu fullname: Xu, Yan Ying email: xyylwzj@163.com organization: Harbin Institute of Technology : School of Energy Science and Engineering – givenname: Ti Hai surname: Xu fullname: Xu, Ti Hai email: xutihai@163.com organization: Guodian Shuangyashan Power Generation Co.,Ltd : Contract Center – givenname: Yu Fen surname: Qian fullname: Qian, Yu Fen email: 13940372388@163.com organization: Liaoning Academy of Safety Since : The boiler tubes Research |
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Keywords | Re-Ignition Source Phase Relations Combustion Characteristic Helmholtz-Type Valveless Self-Excited Pulse Combustor |
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Title | Combustion Characteristics of a Helmholtz-Type Valveless Self-Excited Pulse Combustor |
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