汪硕峰,纪常伟,焦磊,张旻玥,张擘,黄霄楠.混氢改善汽油机低怠速性能研究[J].农业机械学报,2012,43(5):22-26.
Wang Shuofeng,Ji Changwe,Jiao Le,Zhang Minyue,Zhang Bo,Huang Xiaonan.Effect of Hydrogen Addition on Improving Low Idle Speed Performance of SI Engine[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(5):22-26.
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混氢改善汽油机低怠速性能研究   [下载全文]
Effect of Hydrogen Addition on Improving Low Idle Speed Performance of SI Engine   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2012.05.004
中文关键词:  汽油机  混氢  怠速  燃烧  排放
基金项目:国家自然科学基金资助项目(50976005)
作者单位
汪硕峰 北京工业大学 
纪常伟 北京工业大学 
焦磊 李斯特测试设备上海有限公司 
张旻玥 北京工业大学 
张擘 北京工业大学 
黄霄楠 北京工业大学 
中文摘要:在一台加装了电控氢气喷射系统的四缸汽油机上,试验研究了混氢对发动机低怠速性能的影响。在怠速转速不变、维持进气混合气处于当量比的条件下,在0~6%的范围内逐渐增加氢气在总进气中的体积分数,测试了发动机转速分别为800、700、600r/min时的低怠速性能。试验结果表明,纯汽油机怠速为800r/min时,发动机稳定运行的燃料能量流量Ef为30.8MJ/h,而当混氢分数增加至6.0%、怠速转速降至600r/min时,Ef降低至18.6MJ/h;随进气混氢体积分数的提高,发动机低怠速时的燃烧持续期缩短,HC、CO及NOx排放量降低,循环变动也减小。可见,进气掺氢可有效改善发动机的低怠速性能。
Wang Shuofeng,Ji Changwe,Jiao Le,Zhang Minyue,Zhang Bo and Huang Xiaonan
Beijing University of Technology;Beijing University of Technology;AVL Test Systems Shanghai Co., Ltd.;Beijing University of Technology;Beijing University of Technology;Beijing University of Technology
Key Words:Gasoline engine  Hydrogen  Idle  Combustion  Emissions
Abstract:An experiment was carried out on a four-cylinder spark-ignited (SI) gasoline engine to investigate the effect of hydrogen addition on the engine performance at low idle speed conditions. The engine was run at three idle speeds of 800r/min, 700r/min and 600r/min. At the specified idle speed and stoichiometric conditions, the hydrogen volumetric fraction in the total intake was gradually increased from 0 to about 6%. The experimental results showed that the engine fuel energy flow rate was reduced from 30.8MJ/h at the idle speed of 800r/min and a hydrogen volumetric fraction in the intake of 0 to 18.6MJ/h at the idle speed of 600r/min and a hydrogen volumetric fraction in the intake of 6.0%. For different idle speeds, the engine combustion duration was shortened, cyclic variation was eased and HC, CO and NOx emissions were decreased with the increase of hydrogen volumetric fraction in the intake. All in all, the addition of hydrogen was effective for enhancing the engine performance at low idle speed conditions.

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.

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