An Investigation into Laser Diagnostic Technique of Liquid Droplets : Part 2 Measurement of Evaporation Rate Constant In Hot Spray
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概要
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A measurement method for spray droplet evaporation rate constant was shown. In this study a novel laser diffraction technique was applied to the investigation of spray vaporizations. Measurements were made of local spatial size and distribution in volume element within a quasi two dimentional spray generated from Fan Spray nozzle. Detected diffracted total light energy and its relative diffracted light energy were defined. To predict the evaporation rate constant, the detected relative light energy was compared with the total light energy in vaporizing spray in hot gas stream. For ethanol cloud spray, evaporation rate constant was given as 0.04-0.1mm^2/s (373K-573K). It is found that this method is available to estimate the evaporating rate constant of liquid spray.
著者
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Arai Takakage
Department Of Mechanical Engineering Gunma University
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NAKAYAMA Mitsushige
Department of Mechanical Engineering, Gunma University
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Nakayama Mitsushige
Department Of Mechanical Engineering Gunma University
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