粒子循環を利用した新型放射管バーナーコールドモデル内の粒子流動特性

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  • Characteristics of Particle Flow Behavior in a Cold Model of Novel Burner with Circulating Fluidized Bed.
  • リュウシ ジュンカン オ リヨウシタ シンガタ ホウシャカン バーナー コールド

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To improve the performance of radiant-tube burners, which are widely used for indirect heating in industrial furnaces, we have devised a new radiant-tube burner that will improve the thermal efficiency and make the radiant tube surface temperature uniform by circulating the heat-resisting particles within the burner.<BR>In this study, we investigated the particle flow behavior in the burner tube and the operating condition of fluidization by using a three-dimensional visualized coldmodel apparatus.<BR>Our research we found the following points regarding development of the combustor : <BR>(1) The circulating fluidized flow and the range of circulating fluidized flow depend strongly on particle bed height and particle diameter.<BR>(2) The pressure in the combustion tube is approximately 12kPa and the pressure oscillation is around 3.5kPa for the state of circulating fluidization.

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