龚金科,吁璇,伏军,刘云卿,余明果.柴油机喷油助燃再生系统微粒捕集器油气匹配研[J].农业机械学报,2010,41(4):1-5.
.on Fuel-air Matching Forms in Burner-type Diesel Particulate Filter[J].Transactions of the Chinese Society for Agricultural Machinery,2010,41(4):1-5.
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柴油机喷油助燃再生系统微粒捕集器油气匹配研   [下载全文]
on Fuel-air Matching Forms in Burner-type Diesel Particulate Filter   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  柴油机  喷油助燃再生系统  微粒捕集器  油气匹配
基金项目:
龚金科  吁璇  伏军  刘云卿  余明果
湖南大学
中文摘要:基于自行设计的微粒捕集器(DPF)喷油助燃再生系统,对燃烧器内以不同油气比混合燃烧后气体与柴油机排气混合形成的高温废气温度进行试验研究,并采用过滤体孔道内的热再生模型,对DPF喷油助燃再生过程进行数值模拟,模拟结果与DPF再生试验数据吻合良好。根据再生过程的仿真结果,以怠速工况下DPF再生时过滤体壁面峰值温度、温度梯度及再生时间等为条件,研究喷油助燃再生方式下燃烧器的油气配比问题,怠速工况下再生时油气比取0.25~0.16时能够实现合理匹配。
Key Words:
Abstract:Based on self designed burner-type system diesel particulate filter (DPF), the temperature of both gas in burner mixed with combusted combustion gas by several fuel-air matching forms and diesel exhaust gas was experimentally studied. The pyrogenation regeneration model for a channel of DPF was used to obtain the regeneration computational result, which is verified to match with experimental results well. Further, according to simulation results, the problem of fuel-air matching forms on idle condition was analyzed in regeneration performance requirements, such as wall maximum temperature, temperature gradient, regeneration time and so on, to achieve the reasonable matching for burner-type DPF.

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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