LPG와 가솔린 예혼합 압축 착화 엔진의 배기가스 배출물 특성 = Exhaust Emission Characteristics of LPG and Gasoline HCCI Engine

다국어 초록 (Multilingual Abstract)

Variable valve timing is one of the attractive ways to control homogeneous charge compression ignition (HCCI) engine. Hot internal residual gas which is controlled by variable valve timing (VVT) device, makes fuel is evaporated easily, and ignition timing is advanced. Regular gasoline and liquefied petroleum gas were used as main fuel and di-methyl ether (DME) was used as ignition promoter in this research. HCCI engine operating range is limited by high combustion peak pressure and engine noise. High combustion pressure can damage the engine during operation. Operating range and exhaust emissions were compared liquefied petroleum gas (LPG) HCCI engine with gasoline HCCI engine. Operating range of LPG HCCI engine was wider than that of gasoline HCCI engine. And carbon dioxide (CO₂) emission of LPG HCCI engine was lower than that of gasoline HCCI engine. However, carbon oxide (CO) and hydro carbon (HC) emission of LPG HCCI engine were higher than that of gasoline HCCI engine.

목차 (Table of Contents)

• Abstract
  
• 1. 서론
  
• 2. 실험 장치 및 실험 방법
  
• 3. 실험 결과
  
• 4. 결론
  
• 후기
  
• References