국내 최대 기계 및 로봇 연구정보

국내학술대회

314

국내학술대회 제목 게시판 내용
제목(국문)	EGR cooler Fouling이 냉각 성능에 미치는 영향에 관한 연구
제목(영문)	A study of the Effect of EGR cooler fouling on cooling efficiency
저자	남연우 (Younwoo Nam ,자동차부품연구원 ) ▷공저자네트워크등록하기 오광철 (Kwangchul Oh ,자동차부품연구원 ) ▷공저자 네트워크 보기 김덕진 (Dukjin Kim ,자동차부품연구원 ) ▷공저자 네트워크 보기 김종훈 (Jonghun Kim ,자동차부품연구원 ) ▷공저자네트워크등록하기 이천환 (Chunhwan Lee ,자동차부품연구원 ) ▷공저자네트워크등록하기 이춘범 (Chunbeom Lee ,자동차부품연구원 ) ▷공저자네트워크등록하기
초록	Understanding the exhaust gas recirculation (EGR) cooler fouling in diesel engine is important factor in the durability characteristic of the EGR system. We develope the test rig and PM feeder using carbon black to examine the effect of fouling on EGR cooler devices those were consisted of flat and spiral type tube. The EGR cooler fouling process is a complex interaction involving heat exchanger shape, boundary condition, constitutes, chemistry and operating mode. As the soot deposited to EGR cooler, these formed a thin deposit layer that was less heat exchange than the fresh status of tube enclosing the exhaust gas, resulting in lower heat exchange effectiveness in both type coolers. But these deposits caused different results in pressure drop, it is increased in flat type, but decreased in spiral type of EGR cooler. A cause was estimated from a change of the flow structure and a decrease of contac area as the EGR cooler fouling.
저널명	한국자동차공학회 춘계학술대회 ▷관련저널보기
VOL	9
PAGE	38
발표년도	2009
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