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자료유형
학술저널
저자정보
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제19권 제3호
발행연도
2003.6
수록면
297 - 306 (10page)

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Works were focused on back pressure characteristics of ceramic fiber filter on DPF(Diesel Particulate Filter) system and experiments were performed to select appropriate filter which can filter particulates. Filters were installed on metal-support tube which has openings for exhaust as flow. Ceramic fiber filters with high specific surface area and adequate high temperature strength are commercially available for filtration of diesel particulates and in-situ hot regeneration. Thus, ceramic blanket and ceramic board which are used as insulating media were applied to filter and filteration apparatus was installed on exhaust as line connected to 2.0L diesel engine.
Alternating filter structure to adapt DPF system, collection efficiency test of diesel particulates was measured. In case of ceramic blanket, pressure drop was low, caused by the destruction of soft structures. Also, particulate collection efficiency was decreased depending on loading time. In case of ceramic board, structure design was altered to reduce back pressure on DPF system.
Structure design was altered to induce Z-flow by making 10mm and 5mm holes on the surface of media. Alteration of 5mm hole showed that media have low back pressure but particulate collection efficiency was 77%, while 10mm hole showed that of 90%.

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