| 模式采样法采集尾气中BaP的研究 |
| 摘要点击 772 全文点击 819 投稿时间：1995-02-14 |
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| 中文关键词 模式采样法 多环芳烃(PAH) BaP 柴油机尾气 台架实验 尾气采样 |
| 英文关键词 operomode sampling polycyclic arcmatte hydrocarbons benzo-a-pyrene exhausts of diesel engines diesel engine test cycle bench test |
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| 中文摘要 |
| 用模式取样法采集汽车柴油发动机尾气中多环芳烃,并重点对BaP采样方法进行研究。结果表明,该法采样时间仅l—2s,采样体积为330ml(s·次),回收率77.6%,9次重复的变异系数为29.6%。测得BaP的数据与国际ISO规定的CVS定容取样法可比。 |
| 英文摘要 |
| A new method,operomode sampling method was presented for the first time for collecting polycyclic aromatic hydrocarbons (PAHs) in the exhaust from diesel engines. With benzo-a-pyrene (BaP) as a main index,the efficiency,precision and accuracy of the sampling technique were investigated. Results show that the operomode sampling method was a simple,rapid and reliable method. During the bench test of diesel engines it could be used to collect PAHs compounds quickly from exhausts of diesel engines under different operating modes such as idle motion,free acceleration etc. The BaP data measured were comparable with those from the constant volume sampling (CVS) method. |
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