炎溶射法による球状粉末の製造装置における二重管式ノズルからの炎ガスの流速と温度分布の解析

書誌事項

タイトル別名
  • Analysis of Flame Gas Velocity and Temperature Distribution from Double-Pipe Nozzle Jet in a Production Unit for Spherical Particles by Flame Spray Method.
  • ホノオ ヨウシャホウ ニヨル キュウジョウ フンマツ ノ セイゾウ ソウチ ニ

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The production process for spherical particles by flame spraying is a method for exposing solid particles to the combustion flame and to fuse them to make spheres. This process is used for producing ceramic or metal spherical particles. In the development of this process it is very important to analyze the fusing and sphering phenomena of the solid particles quantitatively. A combustion model of the fuel gas flame from the double-pipe nozzle jet was formulated and the flame gas velocity and the axial temperature distribution were calculated by this model. These calculated results were approximately in accordance with the observed flame shapes. It is possible to calculate the heat transfer rate from the flame gas to the solid particles by this model.

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