乙醇/柴油发动机乙醇乙醛排放测试系统的设计与应用  

Design and application of measure system for ethanol and acetaldehyde emissions from engine fueled with ethanol/diesel blends

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作  者:洪伟[1] 吕庆胜[1] 谭满志[1] 郭英男[1] 艾森林[2] 

机构地区:[1]吉林大学汽车工程学院,长春130022 [2]车辆排放与节能重庆市市级重点实验室,重庆400039

出  处:《吉林大学学报(工学版)》2006年第6期885-888,共4页Journal of Jilin University:Engineering and Technology Edition

基  金:国家重点基础研究发展规划项目(2001CB209206)

摘  要:介绍了利用气相色谱分析技术分析发动机尾气的方法。采用在线直接进样、袋式采样和吸收采样3种采样方式进行了对比试验。设计了冰浴去离子水吸收乙醇和乙醛的两级采样系统和气相色谱分析系统。实验结果表明,建立的色谱分析方法可成功对乙醇和乙醛进行有效分离,乙醇和乙醛的检测限分别为0.19μg/mL和0.18μg/mL,满足试验要求,实现了对乙醇柴油发动机排气中乙醇和乙醛的分离测量。Gas chromatography (GC) technology was used to analyze the ethanol and acetaldehyde in engine exhaust gas. Three sampling methods were compared including direct sampling, bag sampling and absorption sampling. An analysis system was established which use a gas chromatograph as analyzer and a two-stage absorption advice as sampling system in which the deionized water in the ice water bath was used to absorb the ethanol and acetaldehyde. Ethanol and acetaldehyde are successfully separated and measured by the system and the detection limits are 0.19μg/mL and 0. 18μg/mL respectively. Separation and measurement of the ethanol and acetaldehyde in actual ethanol/diesel engine exhaust are realized.

关 键 词:动力机械工程 乙醇/柴油发动机 测试技术 乙醇排放 乙醛排放 气相色谱 

分 类 号:TK411.71[动力工程及工程热物理—动力机械及工程]

 

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