Influence of particle charging on TEOM measurements in the presence of an electrostatic precipitator
| Autor: | H. Burtscher, T. Nussbaumer, A. Lauber, N. K. Meyer |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Atmospheric Measurement Techniques, Vol 2, Iss 1, Pp 81-85 (2009) |
| Druh dokumentu: | article |
| ISSN: | 1867-1381 1867-8548 |
| Popis: | The efficiency of an electrostatic precipitator (ESP) for reducing wood combustion emissions was investigated. Real-time measurements were conducted by directly reading the change in frequency of the tapered element in a Thermo Scientific 1400a TEOM. These measurements have been shown to be influenced by the charge on the aerosols reaching the tapered element such that the TEOM overestimates mass concentration. This electrostatic effect was crosschecked with particle mass concentration and particle number concentration measurements where no influence was observed. Placing a radioactive neutraliser prior to the TEOM leads to agreement between observed ESP efficiencies as measured by both the TEOM, mass filters and a CPC. |
| Databáze: | Directory of Open Access Journals |
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