국내 최대 기계 및 로봇 연구정보

국내학술대회

250

국내학술대회 제목 게시판 내용
제목(국문)	선회형 이유체 노즐에서의 선회각 변화에 따른 분무특성에 관한 실험적 연구
제목(영문)	Effect of Swirl Angle on the Spray Characteristics in Twin-Fluid Swirl Nozzle
저자	우재문 (Jaemoon Woo ,전북대학교 ) ▷공저자네트워크등록하기 최윤준 (Yoonjoon Choi ,전북대학교 ) ▷공저자네트워크등록하기 김덕진 (Deokjin Kim ,자동차부품연구원 ) ▷공저자 네트워크 보기 이지근 (Jeekeun Lee ,전북대학교 ) ▷공저자네트워크등록하기
초록	The regulations to reduce the exhaust emissions from vehicles are becoming increasingly stringent and encompassing more types of vehicles. In the case of heavy duty diesel engines, the Urea-SCR system is currently considered to reduce the NOx emission as a proved technology, and it is widely studied to get the high performance and durability. However, the injection nozzles occur some problems, including the nozzle clogging, deposition of urea-water solution on the inner wall of exhaust pipe. In this study, the effects of swirl angle of twin-fluid swirl nozzle on the spray characteristics were investigated . The spray width, the droplet velocity and size with the variation of swirl angles were measured using a 2-D PDA system. As a results, the axial velocity is decreased with increase of swirl angle. Therefore, the droplet size is a proportional relation with increase of swirl angle.
keyword	Twin-fluid nozzle(이유체 노즐 ), Swirl angle(선회각 ),PDAsystem(위상 도플러 입자분석기 ), Urea-SCR(우레아-선택적 촉매저감법), Droplet size(액체크기)
저널명	한국자동차공학회 추계학술대회 ▷관련저널보기
VOL	08
PAGE	190
발표년도	2008
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