지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Carbon monoxide (CO) is not only an important intermediate species in chemical reaction mechanisms of hydrocarbon fuel combustion, but also a crucial pollutant species emitted from automotive engines. To better understand the physical processes impacting CO emissions, the development of laser-based measurement techniques that can visualize in-cylinder CO distributions is desirable. Among these techniques, Laser-Induced Fluorescence (LIF) is a sensitive and species-selective detection technique capable of good spatial resolution. However, some technical matters such as deep UV excitation, severe pressure dependency of the LIF signal, and potential interference from other species have been major challenges for CO LIF application. This study is focused on investigating the feasibility of CO two-photon LIF in a direct-injection diesel engine operating at typical pressure and temperature conditions with commercial grade diesel fuel. Spectroscopic analysis shows that the CO fluorescence signal can be separated from C₂ Swan band or broadband fluorescence from PAHs when the signal is collected near 483 nm. The signal-to-noise ratio of CO LIF deteriorate rapidly as pressure is increased, following P<SUP>-1.49</SUP> which matches the theoretical signal pressure dependency.
목차
ABSTRACT
1. 서론
2. CO two-photon LIF
3. 실험장치 및 방법
4. 실험결과
5. 결론
후기
참고문헌
부록
참고문헌 (11)
참고문헌 신청
1. [학술지(정기간행물)] - Heywood / 1988 / Internal Combustion Engine Fundamentals : 592 ~
2. [학술지(정기간행물)] - Dec, J.E., Sjoberg, C / 2003 / parametric study of HCCI combustion-the sources of emissions at low loads and the effects of GDI fuel injection
3. [학술지(정기간행물)] - Kook, S / 2005 / The influence of charge dilution and injection timing on low-temperature diesel combustion and emissions
4. [학술지(정기간행물)] - Colban, W.F / 2007 / On the cyclic variability and sources of unburned hydrocarbon emissions in low temparature diesel combustion systems
5. [학술지(정기간행물)] - Dally, B.B / 2003 / Two-photon laser-induced fluorescence measurement of CO in turbulent non-premixed bluff body flames 132 : 272 ~ 274
2. [학술지(정기간행물)] - Dec, J.E., Sjoberg, C / 2003 / parametric study of HCCI combustion-the sources of emissions at low loads and the effects of GDI fuel injection
3. [학술지(정기간행물)] - Kook, S / 2005 / The influence of charge dilution and injection timing on low-temperature diesel combustion and emissions
4. [학술지(정기간행물)] - Colban, W.F / 2007 / On the cyclic variability and sources of unburned hydrocarbon emissions in low temparature diesel combustion systems
5. [학술지(정기간행물)] - Dally, B.B / 2003 / Two-photon laser-induced fluorescence measurement of CO in turbulent non-premixed bluff body flames 132 : 272 ~ 274
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UCI(KEPA) : I410-ECN-0101-2009-431-019456073