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스파크 점화기관 냉간 시동시 플라즈마 광촉매 복합장치와 스월 2차 공기분사에 의한 탄화수소 화합물 저감에 관한 실험적 연구
이택헌(Taek-heon Lee),신영기(Yoonggy Shin),전광민(Kwang Min Chun) 한국자동차공학회 2002 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2002 No.5_1
In addition to the previous studies about model gases and engine-out hydrocarbon reaction through the plasma photocatalyst combined reactor, secondary air injection effects and synergy effects with the reactor were investigated. With secondary air injection only, the combustion products such as acetylene increased most highly because the large amounts of these components under rich condition at cold stan were not oxidized sufficiently due to the initially lower frame temperature from secondary air dilution. But the fuel components such as iso-pentane were reduced to 50% maximum. Olefins did not show any peculiar trends and, when excess 0₂secondary air was injected, additional oxidations were measured in small amounts.<br/> In the simultaneous application with plasma-photocatalyst reactor, there were not remarkable changes with the non-fuel components and fuel paraffins compared with the secondary injection only However the olefinic components were dramatically decomposed more than 95% except iso-butylene which was decomposed by 80%.<br/>