3213 感熱燐光体を用いたディーゼル機関燃焼室壁面熱流束分布の画像計測(S44-1 エンジンの新しい計測技術とモデリング(1),S44 エンジンの新しい計測技術とモデリング)

概要

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The potential of laser-induced phosphorescence technique for imaging temperature and heat flux distribution on diesel combustion chamber wall was explored with a view towards improving our understanding of heat transfer phenomena in diesel engine. Two-dimensional distribution of temperature on a phosphor-coated quartz chamber wall, onto which a diesel spray flame impinges, was measured under diesel like conditions using a rapid compression and expansion machine (RCEM). The phosphor coated wall was irradiated by a 355nm ND:YAG laser pulse and a phosphorescence image was captured by a CCD camera. Two-dimensional temperature distribution was obtained from pixel-by-pixel ratio of phosphorescence intensities at reference and measured temperatures.
社団法人日本機械学会の論文
2005-09-18