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论文类型：期刊论文

发表时间：2016-01-01

发表刊物：POWDER TECHNOLOGY

收录刊物：SCIE、EI

卷号：287

页面范围：239-247

ISSN号：0032-5910

关键字：Rotary kiln; Granular flow kinetic theory; Heat transfer; Two-fluid model; Computational Fluid Dynamics (CFD)

摘要：A two-fluid approach and diverse heat transfer models are applied to a two-dimensional cross-section of a rotary kiln coupled with granular flow kinetic theory, which treats random granular motion as thermal molecular motion. The models are validated by comparison with the available experimental data. The results show that the bed surface velocity characteristic peak is located at the center and down the edges. The highest temperature is found at the bed surface and the temperature gradient in the bed is lower than that in the rotary kiln wall. The main factors that affect the temperature distribution are the initial gas temperature and rotational speed of the kiln. (C) 2015 Elsevier B.V. All rights reserved.