http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
레이저 유도 선해리 형광법(LIPE)을 이용한 화염내 OH 및 $O_{2}$ 분자의 2차원 농도 분포 측정
진성호,남기중,김회산,장래각,박승환,김웅,박경석,심경훈,김경수,Jin, Seong-Ho,Nam, Gi-Jung,Kim, Hoi-San,Chang, Nae-Kak,Park, Seung-Han,Kim, Ung,Park, Kyoung-Suk,Shim, Kyoung-Hoon,Kim, Gyung-Soo 대한기계학회 1996 大韓機械學會論文集B Vol.20 No.12
Planar images of OH and $O_{2}$ with tunable KrF excimer laser which has a) 0.5 $cm^{-1}$ / linewidth, b) 0.5 nm tuning range, c) 150 mJ pulse energy, and d) 20 ns pulse width are obtained to determine spatial distributions of OH and $O_{2}$ in premixed $C_{3}$H$_{8}$ /O$_{2}$ flame. The technique is based on planar laser induced pre-dissociative fluorescence(PLIPF) in which collisional quenching is almost avoided because of the fast pre-dissociation. Dispersed LIPF spectra of OH and $O_{2}$ are also measured in a flame in order to confirm the excitation of single vibronic state of OH and $O_{2}$, OH and $O_{2}$ are excited on the P$_{2}$(8) line of the $A^{2}$.SIGMA.$^{+}$(v'= 3)-X$^{2}$.PI.(v'||'||'&'||'||'quot;= 0) band and R(17) line of the Schumann-Runge band B$^{3}$.SIGMA.$_{u}$ $^{[-10]}$ (v'= 0)- X$^{3}$.SIGMA.$_{g}$ $^{[-10]}$ (v'||'||'&'||'||'quot;= 6), respectively. Dispersed OH and $O_{2}$ spectra show an excellent agreement with simulated spectrum and previous works done by other group respectively. It is confirmed that OH widely distributed around flame front area than $O_{2}$.
UV Laser Rayleigh Scattering을 이용한 가스 성분의 농도 및 온도 분포 계측에 관한 실험적 연구
진성호(S.H.Jin),남기중(G.J.Nam),김희산(H.S.Kim),장래각(N.K.Chang),박승한(S.H.Park),깅웅(U.Kim),박경석(K.S.Park),김경수(G.S.Kim) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
Rayleigh Scattering Cross Sections(σ_i) of various gases and the temperature distributions of premixed Propane/O₂ flame are measured by high power KrF(248nm) Excimer laser and ICCD camera. Results show that σ_i of O₂ and Propane(C₃H_8) gases agree well in the 5% error range. but σ_i of H₂ has the more or less difference from the calculated value by other groups. This is attributed to the low RS signal of H₂ to noise level(SIN ratio).<br/> The temperature distributions of flame range out between 300K in the air and about 2000K in the burned area. In this temperature range, our system has the about 250K temperature resolution. Because low RS signals in the reaction area with high temperature are affected highly by noises, temperature uncertainty of this area is relatively high to another part of flame.<br/> Experimental results show that UV Rayleigh Scattering can be used for the measurement of mixing ratios of mixed gases and the temperature distributions of flame. Especially. this technique can be applied for the measurement of the mixing ratios of air/fuel before the ignition and the flame structure after the ignition inside the Engine.<br/>
UV Laser Rayleigh Scattering을 이용한 C₃H_8/O₂ 화염에서 가스 성분의 농도 및 온도 분포 계측에 관한 실험적 연구
진성호(S. H. Jin),남기중(G. J. Nam),김회산(H. S. Kim),장래각(N. K. Chang),박승한(S. H. Park),김웅(U. Kim),박경석(K. S. Park),김경수(G. S. Kim) 한국자동차공학회 1997 한국 자동차공학회논문집 Vol.5 No.2
Rayleigh Scattering Cross Sections(σ_i)of various gases and the temperature distributions of premixed C3HJOz flame are measured by high power KrF(248nm) Excimer laser and ICCD cam-era. Results show that σ_i of 0₂, and Propane(C₃H_8) gases agree well in the 5% error range, but σ_i of H ₂ has the more or less difference from the calculated value by other groups. This is attributed to the low RS signal of H ₂ to Nosie level(S/N ratio).<br/> The temperature distributions of flame range out between 300K in the air and about 2000K in the burned area. In this temperature range, our system has the about 250K temperature resolution. Because low RS signals in the reaction area with high temperatue are affected highly by noises, temperature uncertainty of this area is relatively high to another part of flame.<br/> Experimental results show that UV Rayleigh Scattering can be used for the measurement of mixing ratio of mixed gases and the temperature distributions of flame. Especially, this technique can be applied for the measurement of the mixing ratio of air/fuel before the ignition and the flame structure after the ignition inside the Engine.<br/>