司鹏鹍,张惠明,杨志勇,张自立,焦运景,程辉.燃烧室结构对稀燃天然气发动机性能的影[J].农业机械学报,2009,40(4):53-57.
.of the Combustion Chamber Structure on the Lean Burn CNG Engine Performance[J].Transactions of the Chinese Society for Agricultural Machinery,2009,40(4):53-57.
摘要点击次数: 2738
全文下载次数: 8
燃烧室结构对稀燃天然气发动机性能的影   [下载全文]
of the Combustion Chamber Structure on the Lean Burn CNG Engine Performance   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  天然气发动机  燃烧室  稀薄燃烧  性能
基金项目:
司鹏鹍  张惠明  杨志勇  张自立  焦运景  程辉
天津大学
中文摘要:阐述了稀燃天然气发动机缸内不同气体运动及其产生机理,分析了缸内气体运动对发动机燃烧过程的影响。针对稀燃天然气发动机的燃烧过程,设计了不同结构形状和尺寸的燃烧室,并分别通过数值模拟和试验方法,就不同结构的燃烧室对天然气发动机性能的影响进行了研究。结果显示,产生湍流强度大的燃烧室燃烧速度快,动力性和经济性较好,而NOx排放量也较大。
Key Words:
Abstract:This paper presented the different mass motion and the mechanism, analyzed the effect of the mass motion on the combust process of the engine. Combustion chambers with different structure and size that fit the combustion of the lean burn CNG engine were given and the effect of the chambers with different structure on the performance of CNG engine was studied through numerical study and experiment. The result shows that the combustion of lean burn engine with high turbulence chamber is fast, provides more power and economic performance, but high NOx emissions.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器