Turbulent burning velocity of stoichiometric syngas flames with different hydrogen volumetric fractions upon constant-volume method with multi-zone model |
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| Affiliation: | 1. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China;2. Beijing Key Laboratory of Powertrain for New Energy Vehicle, Beijing Jiaotong University, Beijing, 100044, China;3. College of Energy Engineering, Zhejiang University, Hangzhou, 310027, China;1. School of Mechanical Engineering, University of Jinan, Jinan, 250022, China;2. State Key Laboratory of Advanced Welding and Joining & School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China;3. Department of Mechanical Engineering, Shandong Jiaotong University, Jinan, 250022, China;1. College of Mechanical and Electrical Engineering, China Jiliang University, Hangzhou 310018, China;2. College of Energy Engineering, Zhejiang University, Hangzhou 310027, China;1. School of Energy and Environment, Anhui University of Technology, Ma’anshan, Anhui Province 243002, China;2. College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, China |
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| Abstract: | Syngas has been widely concerned and tested in various thermo-power devices as one promising alternative fuel. However, little is known about the turbulent combustion characteristics, especially on outwardly propagating turbulent syngas/air premixed flames. In this paper, the outwardly propagating turbulent syngas/air premixed flames were experimentally investigated in a constant-volume fan-stirred vessel. Tests were conducted on stoichiometric syngas with different hydrogen volumetric fractions (XH2, 10%–90%) in the ambience with different initial turbulence intensity (u'rms, 0.100 m/s~1.309 m/s). Turbulent burning velocity was taken as the major topic to be studied upon the multi-zone model in constant-volume propagating flame method. The influences of initial turbulent intensity and hydrogen volumetric fraction on the turbulent flame speed were analysed and discussed. An explicit correlation of turbulent flame speed was obtained from the experimental results. |
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| Keywords: | Stoichiometric syngas Turbulent burning velocity Turbulence effects Fuel composition effects Constant volume method Explicit correlation |
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