1. 天津大学先进内燃动力全国重点实验室
2. 广州汽车集团股份有限公司汽车工程研究院
纸质出版:2025
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付振, 吴坚, 吴广权, 等. 喷嘴与活塞顶形状对氢内燃机性能影响的模拟[J]. 内燃机学报, 2025,(3):251-261.
付振, 吴坚, 吴广权, et al. 喷嘴与活塞顶形状对氢内燃机性能影响的模拟[J]. 2025, (3): 251-261.
付振, 吴坚, 吴广权, 等. 喷嘴与活塞顶形状对氢内燃机性能影响的模拟[J]. 内燃机学报, 2025,(3):251-261. DOI: 10.16236/j.cnki.nrjxb.202503029.
付振, 吴坚, 吴广权, et al. 喷嘴与活塞顶形状对氢内燃机性能影响的模拟[J]. 2025, (3): 251-261. DOI: 10.16236/j.cnki.nrjxb.202503029.
建立了直喷氢内燃机的三维数值模型,针对喷孔个数、安装位置及活塞顶部形状对混合气形成与燃烧性能的影响进行了模拟.结果表明:采用平顶活塞时,偏置喷孔的性能优于中置喷孔,最高指示热效率为47.28%.在此基础上进一步研究了活塞顶部形状对燃烧性能的影响,发现活塞顶部形状对混合气的形成有较大的影响,斜顶活塞与1孔喷嘴组合方案形成的混合气浓度分布会使得滞燃期和燃烧持续期增加,但会减小传热损失,增加做功能力,使指示热效率高于平顶活塞方案.为了进一步验证斜顶活塞的优势,进行了不同当量比下的性能对比,发现斜顶活塞与平顶活塞相比,在当量比为0.3、0.5和0.7时最高指示热效率分别提升了0.29%、0.67%和0.52%.
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School of Mechanical Engineering, Institute of Vehicles and New Energy Technology, North China University of Water Resources and Electric Power, Zhengzhou 450045, China,School of Mechanical Engineering, Institute of Vehicles and New Energy Technology, North China University of Water Resources and Electric Power, Zhengzhou 450045, China,School of Mechanical Engineering, Institute of Vehicles and New Energy Technology, North China University of Water Resources and Electric Power, Zhengzhou 450045, China,School of Mechanical Engineering, Institute of Vehicles and New Energy Technology, North China University of Water Resources and Electric Power, Zhengzhou 450045, China,School of Mechanical Engineering, Institute of Vehicles and New Energy Technology, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.Effects of injection mode on the mixture formation and combustion performance of the hydrogen internal combustion engine[J].Energy,2018.
Lijun Wang,Zhenzhong Yang,Yan Huang,Dong Liu,Junfa Duan,Shuman Guo,Zhaoju Qin.The effect of hydrogen injection parameters on the quality of hydrogen–air mixture formation for a PFI hydrogen internal combustion engine[J].International Journal of Hydrogen Energy,2017.
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