环境工程学报2012，Vol.6Issue(11)：4191-4196,6.
垃圾焚烧炉炉拱改造与燃烧优化的数值模拟
Numerical simulation of combustion and arch structure in MSW incinerator
摘要
Abstract
The phenomena of ignition delay,incomplete combustion and high carbon content in residual ash are common problems encountered in incinerators burning high moisture wastes.In order to solve these problems,a coupling approach of FLIC and FLUENT was applied in the simulation of in-bed combustion and out-of-bed burnout.The impact of rear furnace arch height and deflector on the burnout characteristics was investigated by a series of numerical simulations,and improved designs were proposed.The comparison of radiation intensity from the furnace arch,mass fraction of volatiles and temperature along the direction of grate length and the velocity vector diagram,between the original design and the new scheme of furnace arch and deflector,was performed.It comes to the conclusion that either reducing the rear arch height or using deflector can put the ignition distance forward.With the methods mentioned above,the result shows that the distance of ignition is shortened by 1.1 m.关键词
垃圾焚烧炉/燃烧/炉拱/挡板/数值模拟Key words
waste incinerator/combustion/furnace arch/deflector/numerical simulation分类
能源科技引用本文复制引用
李秋华,夏梓洪,陈彩霞,张小可..垃圾焚烧炉炉拱改造与燃烧优化的数值模拟[J].环境工程学报,2012,6(11):4191-4196,6.基金项目
国家自然科学基金资助项目 （）
上海市科委资助项目 （）
