| PM10非等速采样的误差分析 |
| 摘要点击 601 全文点击 571 |
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| 中文关键词 |
| 英文关键词 |
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| 中文摘要 |
| 大气中粒子粒径范围很大,但能够危害人体的粒子范围是有限的。多数国家认为小于10μm(空气动力学直径)的粒子对人体有较大的危害。因此,对小于10μm粒子的采样也越来越多地引起各个国家的重视。 |
| 英文摘要 |
| Isokinetic sampling is called the in-stack samplingwhich is different from ambient air sampling. The PM10 in-stack sampling is rather difficult as a fixed flow is used in PM10 sampling. In this article, two methods, varied from the nozzle size and EGR(Exhaust Gas Recirculation) method, have been introduced. Anisokinetic sampling errors and their limits which are caused by the former one have been emphasized. Meanwhile, some other factors which cause errors such as numbers of sampling point and angles of sampling nozzle are briefly illustrated. |
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