서지주요정보
RCEM을 이용한 희박 LPG 혼합물에 대한 고에너지 점화장치의 착화성능 가시화 연구 = A visualization study on ignition performance of high energy ignition system for LPG lean mixture utilizing RCEM
서명 / 저자 RCEM을 이용한 희박 LPG 혼합물에 대한 고에너지 점화장치의 착화성능 가시화 연구 = A visualization study on ignition performance of high energy ignition system for LPG lean mixture utilizing RCEM / 김창업.
저자명 김창업 ; Kim, Chang-Up
발행사항 [대전 : 한국과학기술원, 1993].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

8003689

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 93049

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Lean combustion is one of the most promising methods for increasing engine efficiency and reducing the exhaust emissions from S.I engines. A disadvantage of lean operation, however, is that the burning rate of mixtures is reduced or combustion becomes partial and, sometimes, outright misfiring. Stable flame kemel formation and fast burn are needed to guarantee a successful subsequent combustion under lean-burn operation. High energy ignition system (HEIS) with prechamber was desinged to extend the lean misfire limit and also to improve burning rate of lean mixture. It was tested on a visualized sigle-shot, single-cylinder engine. A shadowgraph method was adopted to visualize the early combustion process. The performances of HEIS were compared with those of normal spark ignition case where the ignition position was at half-radius. Contrary to previous engine test results by others, there was no extension in the lean misfire limit with current homogeneous prechamber combustion. The major difference between the two seemed to be caused by that in the chamber temperatures. However, the stratified prechamber combustion extended lean misfire limit up to $\varphi$ = 0.55 whereas the limit with conventional spark ignition at half-radius was $\varphi$ = 0.66 at 1500 rpm.

서지기타정보

서지기타정보
청구기호 {MME 93049
형태사항 ii, 45 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chang-Up Kim
지도교수의 한글표기 : 김승수
지도교수의 영문표기 : Sung-Soo Kim
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학과,
서지주기 참고문헌 : p. 44-45
주제 Flame visualization.
Liquefied petroleum gas.
Combustion --Research.
Internal combustion engines --Spark ignition.
액화 석유 가스. --과학기술용어시소러스
점화 장치. --과학기술용어시소러스
점화성. --과학기술용어시소러스
내연 기관. --과학기술용어시소러스
섀도 그래프. --과학기술용어시소러스
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