Comparative Analysis of PM10/PM2.5 Laboratory Sampling for Ultra-low Emission of Coal-Fired Power Plants

doi:10.11930/j.issn.1004-9649.202006319

Abstract

Abstract: In the ultra-low emission facilities of coal-fired power plants, in order to explore the cause of different PM₁₀/PM_2.5 measurement results from the particle samplers adopted with different principles, the correlation and stability of the sampling results of the cyclone separator and virtual impactor were tested and compared. In addition, the influence of humidity on the two sampling methods was verified and analyzed, which were all based on particle sampling experiment verification simulation system and automatic filter membrane batch weighing system in the mass concentration environment of 0~6 mg/m³. The results show that the test results of the two sampling methods of cyclone separator and virtual impactor are highly correlated. The stability and reproducibility of the cyclone separator in dry environment is better than that of the virtual impactor. However, the humidity shows stronger effect on the cyclone separator than the virtual impactor. Particularly in the case of PM₁₀/PM_2.5 detection in ultra-low emission power plants, appropriate sampling methods should be selected in consideration of environmental differences.

Key words: ultra-low emission, PM₁₀ and PM_2.5, sampling, cyclone separator, virtual impactor

HUI Lifeng. Comparative Analysis of PM₁₀/PM_2.5 Laboratory Sampling for Ultra-low Emission of Coal-Fired Power Plants[J]. Electric Power, 2021, 54(2): 190-196.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202006319

https://www.electricpower.com.cn/EN/Y2021/V54/I2/190

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Comparative Analysis of PM₁₀/PM_2.5 Laboratory Sampling for Ultra-low Emission of Coal-Fired Power Plants

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