等量比較法による舶用燃料の油滴の燃焼特性に関する研究

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  • The Research on the Combustion Characteristic of Marine Fuel Droplets by the Equivalent-Comparison Method
  • トウリョウ ヒカクホウ ニ ヨル ハクヨウ ネンリョウ ノ ユテキ ノ ネンシ

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The conventional method for investigating the combustion characteristics of fuel of single oil droplet are not capable of treating the marine fluid fuel in use today such as marine heavy fuel oil, fluid catalytic cracked bottom based oil, etc.. For instance, the method of analyzing the variation of oil droplet diameter with time is no longer applicable, since the heavy oil droplet expands and contracts complexly and randomly during combustion. Another popular technique is the mass method, which observes the mass variation with time. Yet the ascending gas current and the vibration of the suspending filament render the results very undependable. Hence, a new way for studying the combustion phenomenon of highly carbonized and viscous low grade marine fuel of single oil droplet is in urgent need.<BR>In this investigation, the author suggested a new method by measuring in an insulated constant volume combustion chamber the equivalent integral area corresponding to the change rate of temperature and the processing time difference of various sample oil droplets comparing to the standard cetane fuel droplet under the same initial conditions, thence deriving the combustion rate and related characterestics.<BR>The results of this investigation showed that this new method is reliable and is applicable to low grade marine fluid fuel as well as to high grade fluid fuel.

収録刊行物

  • 日本舶用機関学会誌

    日本舶用機関学会誌 22 (12), 756-767, 1987

    公益社団法人 日本マリンエンジニアリング学会

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