Design, Calibration, and Field Test of a Cyclone for PM 1 Ambient Air Sampling
| Autor: | P. Norton, R. A. Gussman, L. C. Kenny, M. Labickas |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Aerosol Science and Technology. 36:361-365 |
| ISSN: | 1521-7388 0278-6826 |
| DOI: | 10.1080/027868202753504461 |
| Popis: | Ambient air sampling at a flow rate of 16.7 Lpm (1 m 3 /h) has been well established with the adoption, within the USA, of the EPA regulations governing PM 2.5 sampling. Subsequent to the adoption of the new regulation, problems were encountered with the impactor technique utilized for establishing a PM 2.5 cut ( D 50 = 2.5 w m aerodynamic equivalent diameter, A.E.D.). In order to avoid the depression in the cut point engendered by a buildup of collected material on the impactor stage and to extend the operating interval between cleanings, a cyclone was developed to replace the impactor. Although not an adopted standard, PM 1 has a practical appeal in that it represents the smallest cut point that can practically be assessed for long periods of time at high flow rates utilizing inertial techniques. Further relevance is attributed to this cut by interest in particulate matter related to diesel engine emissions. A new version of the sharp cut cyclone (SCC) was constructed with the aim of obtaining a cut poi... |
| Databáze: | OpenAIRE |
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