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신명철(Myung-Chul Shin),김세원(Se-Won Kim),류태우(Tae-U Ryu) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
This work focuses on the use of flame chemiluminescence for sensing applications in monitoring of a turbulent flame. The optical emissions from a turbulent swirl gas flame were investigated using Photomultipliertube(PMT) and spectrometer system. The goal of this research is to analyse the relationship between flame chemiluminescence intensity and burner operating conditions. The chemiluminescent emissions of OH*, CH*, and C₂* were measured at various equivalence ratios and thermal inputs. The effects of equivalence ratios and NOx emission characteristics on the radical emission intensities (CH*/OH*, C₂*/CH*, C₂*/OH*) were investigated experimentally.
미분탄 순산소 버너의 화염 안정성 파악을 위한 실험적 연구
최종균(Chong-Gun Choi),나익환(Ik-Hwan Na),채태영(Tae Young Chae),류태우(Tae-U Yu),양원(Won Yang),강태석(Tae Seok Kang),김태형(Tae Hyung Kim),서상일(Sangil Seo),류승관(Seung Kwan Ryu) 한국연소학회 2009 KOSCOSYMPOSIUM논문집 Vol.- No.39
Oxy-coal combustion is one of the key technologies for CO2 capture in coal power plants. In this study, flame stability of an oxy-puverized coal flame was investigated in two burners: a 300 ㎾ pulverized coal burner in KITECH and a 1 ㎿MW pulverized coal burner in KEPRI. Flame attachment characteristics were observed visually for air and oxy-fuel conditions, and effect of various ratios of primary and secondary oxidants was also investigated. We found that the operating conditions of oxy-PC flame should be determined more carefully than those of air-PC flame, observing characteristics of the flame attachment in various conditions. Based on the information, stable flame could be achieved for various oxygen concentrations in the oxdizer stream. However, more investigation should be performed for design of a real-scale oxy-PC burner.
권승진(Seung Jin Kwon),김세원(Se Won Kim),신명철(Myung Chul Shin),류태우(Tae U Ryu),김용모(Yong Mo Kim) 한국연소학회 2006 KOSCOSYMPOSIUM논문집 Vol.- No.-
This study is measurement of radicals in gas & light oil diffusion flame focused on burner exit. The goal of this study is to analyse the relationship between flame chemiluminescence(OH, CH, C₂) intensities and flame conditions. The investigation performed turbulent diffusion flame of commercial burner in varying the excess air ratio from 1.0 to 1.8. The optical emissions were measured by photomultiplier(PMT) using optical band pass filter and spectrometer system. The effects of excess air ratio and NOx emission characteristics on the radical emission intensities were investigated experimentally.