魏立江,马雁,韩国鹏,姜淑君,李云强,姚春德.重型柴油机进气预混甲醇实现国Ⅳ排放标准研究[J].农业机械学报,2015,46(6):269-274.
Wei Lijiang,Ma Yan,Han Guopeng,Jiang Shujun,Li Yunqiang,Yao Chunde.Realizing National Phase Ⅳ Emission Standard of Heavy-duty Diesel Engine by Using Premixed Methanol/Diesel Dual Fuel[J].Transactions of the Chinese Society for Agricultural Machinery,2015,46(6):269-274.
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重型柴油机进气预混甲醇实现国Ⅳ排放标准研究   [下载全文]
Realizing National Phase Ⅳ Emission Standard of Heavy-duty Diesel Engine by Using Premixed Methanol/Diesel Dual Fuel   [Download Pdf][in English]
投稿时间:2014-07-22  
DOI:10.6041/j.issn.1000-1298.2015.06.039
中文关键词:  重型柴油机  甲醇  双燃料  排放特性
基金项目:国家高技术研究发展计划(863计划)资助项目(2012AA111719)和高等学校博士学科点专项科研基金资助项目(20120032130009)
作者单位
魏立江 天津大学 
马雁 潍柴动力股份有限公司 
韩国鹏 天津大学 
姜淑君 潍柴动力股份有限公司 
李云强 潍柴动力股份有限公司 
姚春德 天津大学 
中文摘要:在一台6缸重型柴油机上,进行了进气预混甲醇/柴油双燃料(PMDDF)燃烧、结合氧化催化转换器(DOC)和微粒氧化催化转换器(POC)实现国Ⅳ排放标准的研究。同时还对进气预混甲醇对发动机燃烧过程以及燃油经济性的影响进行了研究。结果表明:在发动机动力性保持不变的情况下,按照排放法规的检测方法,采用PMDDF模式,仅使用DOC+POC可以使原机的排放从国Ⅲ提升到国Ⅳ水平,且综合当量燃油消耗率相比原机基本不变。研究中还发现,随着甲醇替代率的增加,PMDDF模式的着火滞燃期延长,燃烧持续期缩短。在大负荷时,PMDDF模式的当量比油耗低于原机,而小负荷时略高于原机。
Wei Lijiang  Ma Yan  Han Guopeng  Jiang Shujun  Li Yunqiang  Yao Chunde
Tianjin University,Weichai Power Co., Ltd.,Tianjin University,Weichai Power Co., Ltd.,Weichai Power Co., Ltd. and Tianjin University
Key Words:Heavy-duty diesel engine  Methanol  Dual fuel  Emission characteristic
Abstract:Premixed methanol diesel dual fuel (PMDDF) is a combustion mode in which methanol is injected from the intake port and then ignited by the direct injected diesel in the cylinder. Many studies have shown that PMDDF mode has the potential to reduce NOx and PM emissions simultaneously. In this study, investigation on realizing national phase Ⅳ emission standard by using PMDDF combustion mode coupling with diesel oxidation catalyst (DOC) and particulate oxidation catalyst (POC) was carried out on a 6-cylinder heavy-duty diesel engine. The effects of premixed methanol on engine combustion process and fuel economy were also investigated. The experimental results showed that with the engine power keeping unchanged, the emission level of the engine was improved from national phase Ⅲ to Ⅳ by using PMDDF combustion mode and the simple aftertreatment DOC+POC. And the specific fuel consumption almost remained unchanged. This technology provided a new route for the realization of national phase Ⅳ emission standard. In addition, it was also found that the ignition delay of PMDDF combustion mode was prolonged and the combustion duration was shortened with the increase of premixed methanol ratio. At high engine load, the brake specific fuel consumption of PMDDF combustion mode was lower than that of baseline engine, but it was slightly higher at low engine load. Therefore, the premixed methanol ratio can be a little higher at high engine load but can not be very high at low engine load. 

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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