Bed-to-immersed tube heat transfer in a circulating fluidized bed

被引：14

作者：

Ahn, GR ^{[1
]}

Han, GY ^{[1
]}

机构：

[1] SUNGKYUNKWAN UNIV, DEPT CHEM ENGN, SUWON 440746, SOUTH KOREA

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 1997年 / 30卷 / 03期

关键词：

heat transfer; fluidized bed; suspension density; heat transfer coefficient; particle size effect;

D O I：

10.1252/jcej.30.421

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Heat transfer characteristics between bed and the immersed tube has investigated in a circulating fluidized bed. The test facility has the dimension of 2.5 m height and 5.0 cm diameter. The operating ranges of experiment covered the superficial gas velocity of 2.0-6.0 m/sec., solid circulation rate of 20-100 kg/m(2) s. Four different sizes of sand particles were employed as the bed material. The effects of operating variables on the heat transfer coefficient were examined. The experimentally determined heat transfer coefficient was correlated in terms of effective suspension density and the qualitative analysis of heat transfer coefficient was made in conjunction with the hydrodynamic characteristics.

引用

页码：421 / 426

页数：6

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