Han Ho Song
서울대학교 기계항공공학부 · 화학공학
한호송 교수의 연구실은 내연기관의 고효율 및 저공해화를 위한 핵심 기술인 HCCI(균질압축점화) 엔진의 저부하 한계 확장과 연료 전처리 기반의 연소 제어 기법을 중심으로 연구를 진행하고 있습니다. 특히, 부가적인 열가소성 반응(예: NVO 동안의 연료 재압축 반응)과 단순 수소화물 연료(예: n-헤프탄, 이옥탄)를 활용한 반응기계학적 분석을 통해 연소 메커니즘을 정량적으로 규명하고자 합니다. 또한, 연료전지와의 하이브리드 시스템 설계 및 열역학적 비가역 손실(예: 엑서지 손실) 분석을 통해 전체 에너지 효율 향상 전략을 모색하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
In-cylinder pre-processing (or recompression reaction) of pilot-injected fuel during negative value overlap (NVO) has been investigated as a method to extend the low-load limit of residual-effected homogeneous charge compression ignition (HCCI). In an effort to elucidate the chemical and thermal effects involved, model calculations have been performed on the recompression reaction and ignition delay of the recompression products using a reduced n-heptane mechanism (160 reactions, 1424 reactions)
Experiments have been reported in the literature in which the low-load limit of a retention-mode HCCI engine operating on gasoline has been significantly extended by pre-processing of the fuel during negative valve overlap. This paper presents experimental studies in which this low-load-limit extension is demonstrated and characterized using simple, single-component hydrocarbon fuels with relatively well-known chemical kinetics. The model fuels were n-heptane and i-octane and this choice was mad
In a previous study, a new hybrid system of molten carbonate fuel cell (MCFC) and homogeneous charge compression ignition (HCCI) engine was developed, where the HCCI engine replaces the catalytic burner and produces additional power by using the left-over heating values from the fuel cell stack. In the present study, to reduce the additional cost and footprint of the engine system in a hybrid configuration, the possibility of engine downsizing is investigated by using two strategies, i.e. the us
