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직접분사 조건에서 충돌벽면이 미치는 영향에 대한 LPG와 CNG의 분무 및 연소 특성 연구

A Study on Characteristics of Spray and Combustion of LPG and CNG about the Effect of Impingement-wall under Direct Injection Condition

  • 정성식 (동아대학교 기계공학과) ;
  • 황성일 (동아대학교 기계공학과 대학원) ;
  • 염정국 (동아대학교 기계공학과) ;
  • 김성희 (동아대학교 기계공학과 대학원)
  • 투고 : 2015.06.06
  • 심사 : 2015.07.08
  • 발행 : 2015.08.31

초록

Liquefied petroleum gas and compressed natural gas haven been regarded as promising alternative fuels because of no smoke, and they are also clean fuel for spark-ignited engine. In spark-ignited direct-injection engine, direct injection technology can increase engine volumetric efficiency significantly and also reduce necessity of throttle valve. This study designed combustion chamber equipped with visualization system. To improve ignition probability, the study designed to help three types of impingement-walls to form mixture. In doing so, LPG CNG-air mixture could be easily formed after spray-wall impingement and ignition probability increased too. The results of this study could contribute as basic resources of spark-ignited direct injection LPG and CNG engine design and optimization extensively.

키워드

참고문헌

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