| 尿素-SCR催化器与发动机性能匹配试验研究 |
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| 引用本文： | 郭红松,姜艳,包俊江,景晓军.尿素-SCR催化器与发动机性能匹配试验研究[J].汽车工程,2011,33(12). |
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| 作者姓名： | 郭红松 姜艳 包俊江 景晓军 |
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| 作者单位： | 1. 中国汽车技术研究中心,天津,300162
2. 环境保护部机动车排污监控中心,北京,100122 |
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| 基金项目： | 中国汽车技术研究中心先进柴油机排放测试技术研究项目(10110209)资助 |
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| 摘 要： | 对一台国IV重型柴油机装用不同厂家生产的3种典型商用尿素-SCR催化转化器在台架上进行了动力性、经济性和排放等性能匹配试验,重点研究催化转化器的压降特性、起燃特性、动态响应和转化效率等性能.结果表明,催化器目数越少,其压降越小；起燃温度低,动态响应快的催化器具有较好的NOx控制效果,且在减少NH3、SO2、N2O和NO2排放方面效果也较好.SCR尺寸和结构相同时,发动机动力性和经济性基本不受催化剂配方和涂层工艺的影响.
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| 关 键 词： | 重型柴油机 尿素-SCR催化器 起燃温度 动态响应 |
An Experimental Study on the Performance Matching of Urea-SCR Catalytic Converter with Engine |
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| Guo Hongsong
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Jiang Yan
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Bao Junjiang
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Jing Xiaojun.An Experimental Study on the Performance Matching of Urea-SCR Catalytic Converter with Engine[J].Automotive Engineering,2011,33(12). |
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| Authors: | Guo Hongsong Jiang Yan Bao Junjiang Jing Xiaojun |
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| Institution: | Guo Hongsong1,Jiang Yan2,Bao Junjiang1 & Jing Xiaojun11.China Automotive Technology and Research Center,Tianjin 300162,2.Vehicle Emission Control Center of Environmental Protection Ministry,Beijing 100122 |
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| Abstract: | A power,fuel economy and emission performances matching test is conducted on a stage-IV heavy duty diesel engine equipped with 3 typical commercial urea-SCR catalytic converters produced by different manufacturers,focusing on the study on performances including pressure drop and light-off characteristics as well as the dynamic response and pollutant conversion rates of catalytic converter.The results show that the fewer the mesh number of converter,the smaller its pressure drop;the catalytic converter with ... |
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| Keywords: | heavy-duty diesel engine urea-SCR catalytic converter light-off temperature dynamic response |
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