文献类型：期刊文献

中文题名：垃圾焚烧炉炉排气固两相燃烧数值模拟

英文题名：CFD Model of Gas-Solid Combustion in Moving Grate MSW Incinerator

作者：Shan, Peng[1]; Xia, Zihong[1]; Chen, Caixia[1]; Du, Hailiang[2]; Huang, Jie[2]; Bai, Li[2]

机构：[1] School of Resources & Environmental Engineering, East China University of Science and Technology, Xuhui District, Shanghai, 200237, China; [2] Shanghai SUS Environment Co., Ltd., Qingpu District, Shanghai, 201703, China

年份：2020

卷号：40

期号：2

起止页码：601

外文期刊名：Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering

收录：EI(收录号：20200908234579)

语种：中文

外文关键词：Granular materials - Kinetic theory - Waste incineration - Computational fluid dynamics - Computation theory - Gases - Evaporation

摘要：Computational fluid dynamics (CFD) modelling is an important method to investigate MSW combustion, and is helpful for the design and operation of incinerators. Modelling in-bed thermal conversions plays a key role in the moving grate incinerator simulation. In the present work, an in-bed gas-solid combustion model based on the FLUENT platform was proposed. The rheological properties of the solid phase were described by the kinetic theory of granular flows (KTGF). Moisture evaporation, devolatilization, volatile gas combustion, and char-O2 combustion were taken into account. Maximum continuous rating (MCR) case shows that the evaporation mainly occurs in the drying section of grate, and the bed temperature is about 400K; volatile is released and ignited in the combustion section with a maximum temperature of 1400K; char is burnt in the third section with a temperature of 900K. The bed top conditions of MCR case were then used for 3D steady furnace simulation. The temperature results were verified by the on-site measurements. Case 80% and case 110% were also simulated, the results are as expected. A realistic grate structure was considered and direct grate-furnace coupling is realized, which provides an efficient and practical method for CFD simulation for industrial moving grate MSW incinerators. ? 2020 Chin. Soc. for Elec. Eng.