吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (6): 1767-1774.doi: 10.13229/j.cnki.jdxbgxb201706013

• 论文 • 上一篇    下一篇

废气再循环对丁醇/柴油混合燃料发动机的影响

郭亮1, 杨文昭1, 王云开2, 孙万臣1, 程鹏1, 李国良1   

  1. 1.吉林大学 汽车仿真与控制国家重点实验室,长春 130022;
    2.陆军装甲兵学院士官学校 机械工程系,长春 130017
  • 收稿日期:2017-03-01 出版日期:2017-11-20 发布日期:2017-11-20
  • 通讯作者: 孙万臣(1968-),男,教授,博士.研究方向:内燃机燃烧与排放控制.E-mail:sunwc@jlu.edu.cn
  • 作者简介:郭亮(1978-),男,副教授,博士.研究方向:高效清洁汽车发动机技术.E-mail:liangguo@jlu.edu.cn
  • 基金资助:
    国家自然科学基金项目(51476069); 吉林省自然科学基金项目(20150101034JC, 20150101035JC)

Effect of exhaust gas recirculation on internal combustion engine fueled with butanol/diesel blend

GUO Liang1, YANG Wen-zhao1, WANG Yun-kai2, SUN Wan-chen1, CHENG Peng1, LI Guo-liang1   

  1. 1.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2.Department of Mechanical Engineering, NCO Academy of Army Armorecl Insitute, Changchun 130017, China
  • Received:2017-03-01 Online:2017-11-20 Published:2017-11-20

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摘要： 对按特定比例混合制得的具有不同着火性的丁醇/柴油混合燃料的燃烧及排放特性进行了试验研究,分析了丁醇掺混比例、废气再循环量等参数对发动机燃烧和排放的影响规律。试验结果表明:随着丁醇比例的增大,发动机滞燃期延长,预混合燃烧量增大,燃烧定容性有所改善;混合燃料配合使用废气再循环能够实现NOx和烟度的同时降低,但在一定程度上会导致发动机的动力性和燃油经济性变差。通过合理调整燃烧相位与废气再循环(EGR)率的匹配关系,能够在较低的总体排放水平下,恢复因燃用醇类燃料造成的动力性损失,提高发动机效率及燃油经济性。

关键词: 动力机械工程, 丁醇/柴油混合燃料, 燃烧优化, 废气再循环, 排放控制

Abstract: The effect of butanol/diesel blend fuel on combustion and emission characteristics of a compression ignition engine is investigated. The action mechanisms of several boundary parameters, such as butanol fraction, Exhaust Gas Recirculation (EGR) rate and combustion phasing, are analyzed. The results show that with the increase in butanol fraction, the ignition delay is extended and a higher proportion of premixed combustion is obtained, thus, better combustion timeliness can be achieved. The smoke and NOx emissions are reduced simultaneously with a combined application of EGR and blended fuel. However, this compromises the engine output and the indicated thermal efficiency. In order to recover the lost power output due to the joint use of ESR and blended fuel, the combustion phasing is adjusted to match the specific ESR rates used in the tests. With an appropriate strategy, the power output of the engine can be recovered with almost no influence on the overall emission.

Key words: power machinery engineering, butanol/diesel blended fuel, combustion optimization, exhaust gas recirculation(EGR), emission control

中图分类号: 

  • TK421.2
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