충격파관을 이용한 메탄/산소 혼합기의 점화지연시간 측정

• Published in: 한국연소학회지 Vol. 22; no. 1; pp. 8 - 13
• Main Authors: 한희선(Hee Sun Han), 왕위엔강(YuanGang Wang), 김철진(Chul Jin Kim), 손채훈(Chae Hoon Sohn)
• Format: Journal Article
• Language: Korean
• Published: 한국연소학회 2017
• Subjects: 기계공학; Shock tube; Ignition delay time; Methane/oxygen mixture; Shock wave
• ISSN: 1226-0959; 2466-2089
• DOI: 10.15231/jksc.2017.22.1.008

Ignition delay time of methane/oxygen mixture is measured experimentally with the shock tube in order to obtain the data for high pressure conditions where gas turbines and internal combustion engines are operating. The shock tube experiment is validated first over the temperature range of 1400-2000 K at 10 bar and with the various equivalence ratios of 0.5, 1 and 2. The measured ignition delays are compared with the data from the literatures. And then, experiments are conducted for non-explored conditions, i.e., at 40 bar and with the equivalence ratio of 1.5. The present experimental data show a good agreement with the available ones from the literatures and reasonable dependence on pressure and equivalence ratio. In addition, the effects of the temperature and equivalence ratio on ignition delay time are analyzed.