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XIE Yusheng1; LI Qi1; ZHANG Heng1; QIN Jiguang2
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谢裕生1; 李琪1; 张恒1; 秦霁光2
1 Institute of Chemical Metallurgy, Academia Sinica, Beijing
2 Research Institute of Chemical Machinery, Lanzhou, Gansu
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Abstract: In designing fluidized-bed equipment, it is important to determine the TDH (Transport Disengaging Height) for the dilute-phase zone. Until the present time, the empirical curve developed by Zenz and Weil in 1958 has been widely used. In the present paper, on the basis of the equation for the motion of single particle, methods for calculating gas velocity, particle velocity, and particle stagnation time and rising height in gas-solid flow, have been developed through theoretical analysis, resulting in an eight-parameter expression, Eq. (14), for computing TDH. This equation, which contains more parameters than those in any previous work, gives closer fit to experimental results, and is thus recommended for design.
摘要: In designing fluidized-bed equipment, it is important to determine the TDH (Transport Disengaging Height) for the dilute-phase zone. Until the present time, the empirical curve developed by Zenz and Weil in 1958 has been widely used. In the present paper, on the basis of the equation for the motion of single particle, methods for calculating gas velocity, particle velocity, and particle stagnation time and rising height in gas-solid flow, have been developed through theoretical analysis, resulting in an eight-parameter expression, Eq. (14), for computing TDH. This equation, which contains more parameters than those in any previous work, gives closer fit to experimental results, and is thus recommended for design.
XIE Yusheng, LI Qi, ZHANG Heng, QIN Jiguang. A NEW CORRELATION FOR THE TRANSPORT DISENGAGING HEIGHT (TDH) OF FLUIDIZED BED[J]. .
谢裕生, 李琪, 张恒, 秦霁光. A NEW CORRELATION FOR THE TRANSPORT DISENGAGING HEIGHT (TDH) OF FLUIDIZED BED[J]. CIESC Journal.
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