エキサイプレックス蛍光法によるディーゼル噴霧内の燃料蒸気濃度分布の画像計測

概要

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To measure the fuel vapor concentration in an unsteady evaporating spray, the exciplex-forming method, which produces spectrally separated fluorescence from the liquid and vapor phase, was applied in this study. Two experiments were conducted to investigate the qualitative and quantitative applicability of the technique in a high-temperature and high-pressure atmosphere during the fuel injection period. In one experiment, we examined the thermal decomposition of TMPD (NNN' N'-tetramethyl-P-phenylene-diamine) dopant in a high-temperature and high-pressure atmosphere during a period of time shorter than 10 ms. In the other, we calibrated the relationship between fluorescence intensity and vapor concentration of TMPD at different temperatures. Then, the distributions of fuel vapor concentration in diesel sprays were measured.
一般社団法人日本機械学会の論文
1994-01-25