LES‐Lagrangian modelling on gasification of combustible solid waste in a spouted bed
LES‐Lagrangian modelling on gasification of combustible solid waste in a spouted bed
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DOI：
10.1002/cjce.21941
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发表时间：
2014-07
影响因子：
2.1
通讯作者：
Jun Xie;Wenqi Zhong;Baosheng Jin
中科院分区：
文献类型：
--
作者：
Jun Xie;Wenqi Zhong;Baosheng Jin
建立了可燃固体废弃物喷动床气化的三维数值模型。考虑了复杂的气固两相流动和化学反应。颗粒运动采用拉格朗日方法，气体运动采用大涡模拟（LES）湍流模型。在直径160 mm、高度900 mm、锥底60°的圆柱形喷动床中进行计算。研究了当量比对产品气组成的影响。对反应器内的流型、温度分布和气体组成进行了讨论。
A three-dimensional numerical model is developed to simulate gasification of combustible solid waste in a spouted bed. Both complex gas–solid flow and chemical reactions are considered. The particle motion is modelled by the Lagrangian method and the gas motion by the large eddy simulation (LES) turbulent model. Calculations were carried out in a cylindrical spouted bed with a diameter of 160 mm, a height of 900 mm, and a conical base of 60°. Effects of equivalence ratio (ER) on product gas compositions were investigated. The flow patterns, profiles of temperatures and gas compositions in the reactor were also discussed.