提高非常规污染物测量精度的方法研究  

Study on the Method of Improving the Measurement Accuracy of the Unregulated Pollutants

作　　者：于全顺 谭建伟 钟科 葛蕴珊 郝利君 

机构地区：[1]北京理工大学汽车动力性与排放测试国家专业实验室,北京海淀区100081 [2]北京电动车辆协同创新中心,北京朝阳区100081 [3]重庆铁马工业集团有限公司军品设计研究所,重庆九龙坡400050

出　　处：《实验科学与技术》2017年第5期38-41,共4页Experiment Science and Technology

基　　金：清华大学大气环境国家重点实验室开放基金(SCAPC201403)

摘　　要：为了研究提高非常规污染物测量精度的方法,选取合适车辆进行试验,取测试系统中CVS稀释通道采样点、收集气袋采样点和气泵出口采样点三个位置进行数据采集,使用固相萃取-高效液相色谱仪对醛酮化合物进行分析。实验结果表明:相比稀释通道采样点和气泵出口采样点,排气分析仪气袋采样点处气体浓度均匀稳定,适合浓度较低的非常规污染物采集,在此处采集能够降低实验误差,提高测量精度。To study the unregulated pollutants more accurately,several appropriate vehicles were tested. Three positions were selected for data collection,such as the CVS dilution tunnel sampling point,air bag sampling point and the air pump outlet sampling point of the pump outlet. The aldehydes and ketones were analyzed by solid phase extraction-high performance liquid chromatography（ HPLC）. Experiments show that compared with the sampling point of the dilution tunnel and the air pump outlet sampling points,the gas concentration at the sampling point of the exhaust gas analyzer is uniform and stable,and it is suitable for the collection of unconventional pollutants with low concentration. Collecting here can reduce the experimental error and improve the measurement accuracy.

关 键 词：非常规污染物 测量精度 方法策略 排放 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]