摘要
以焚烧炉中垃圾团块的传热问题为背景,研究含高水分的多孔介质在高温环境下的传热规律。气、固相处于非热平衡态,分别列出其能量方程,且能量方程中考虑辐射项。从描述多孔介质传热的质点方程出发,采用局部容积平均法导出平均化方程,根据经验修正方程中的系数,并列出适当的初始条件和边界条件,用数值计算方法求出垃圾团块中气、固两相的温度场。
For studying the heat transfer of waste lump in incinerator, the lump is regarded as porous media with high level miosture. Because gas phase and solid phase are in heat non-equilibrium state, that equations of energy should be described respectively and contained radiation part. From microcosmic governing equations, the averaged governing equations are got by local volume-averaging technique, and the coefficients in equations are modified through given empirical correlations, then initial and boundary cond...
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2002年第S1期157-160,共4页
Journal of Engineering Thermophysics
基金
广东省自然科学基金团队研究资助项目(No.003045)
深圳市科技计划经费资助项目(No.2000.19)
煤燃烧国家重点实验室开放基金资助项目(No.9804)
关键词
垃圾团块
多孔介质
气、固两相温度分布
waste lump
porous media
temperature profiles of gas phase and solid phase
