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논문 기본 정보

자료유형
학술저널
저자정보
박재현 (Department of Integrated Particulate Matter Management, Kangwon National University) 이명화 (Department of Integrated Particulate Matter Management, Kangwon National University, Department of Environmental Engineering, Kangwon National University)
저널정보
한국입자에어로졸학회 PARTICLE AND AEROSOL RESEARCH PARTICLE AND AEROSOL RESEARCH 제19권 제4호
발행연도
2023.12
수록면
145 - 154 (10page)
DOI
10.11629/jpaar.2023.19.4.145

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Granular bed filters are widely used to remove particulate matter in flue gas and are filled with various shapes of packing material. The packing material plays an important role in determining the overall collection performance, such as pressure drop and collection efficiency. The pressure drop of a granular bed filter has been calculated using the Ergun equation, while the collection efficiency has been predicted using the log-penetration equation based on the single sphere theory. However, a prediction equation of collection efficiency for a granular bed filter filled with non-spherical packing materials has not been suggested yet. Therefore, in this study, three different shapes of packing materials (sphere, cylinder, and irregular) were prepared to propose a prediction equation. The pressure drop and collection efficiency in a granular bed filter filled with each shape of packing material were measured experimentally and compared with theoretically predicted values. We found that experimentally measured pressure drops matched well with values theoretically predicted using the Ergun equation considering the shape factor. However, experimental collection efficiencies were higher than theoretical ones predicted by the log-penetration equation using the single sphere theory. We modified the log-penetration equation by employing a shape factor and found a good relationship between experimental and theoretical collection efficiencies.

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