Numerical simulation of the pyrolysis of solid waste in an externally heated rotary kiln

被引：0

作者：

Okazaki, Teruyuki ^{[1
]}

Suzuki, Tomoko ^{[1
]}

Yamamoto, Kenji ^{[1
]}

Nakata, Hiroyuki ^{[1
]}

Fujita, Osamu ^{[1
]}

Oshima, Nobuyuki ^{[1
]}

机构：

[1] Hitachi, Ltd., Hitachi Laboratory, Hitachinaka-shi, Ibaraki, 312-8507

来源：

Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B | 2012年 / 78卷 / 786期

关键词：

Heat transfer; Pyrolysis; Rotary kiln; Waste;

D O I：

10.1299/kikaib.78.338

中图分类号：

学科分类号：

摘要：

A computational model was developed to predict the pyrolysis process of municipal solid waste in externally heated rotary kiln. The model was calculated assuming solid waste and gas are one-dimensional flow. The heat transfer coefficient among solid waste, gas and inner cylinder of kiln, which is variously affected by kiln structure and operation condition, was acquired by a scale model examination. A flexible computational grid was adopted in the model, which could change its shape according to the height of solid waste layer in each time step. The accuracy of this model was verified by comparison with the pilot scale experiments and the actual plant data. The predicted transient temperature profile is in good agreement with experimental data. Compared to the actual plant data, temperature prediction error is less than 10% at inner cylinder wall, pyrolysis gas, and solid waste. © 2012 The Japan Society of Mechanical Engineers.

引用

页码：338 / 352

页数：14

共 9 条

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