球体蓄热体的热饱和时间  

Heat Saturating Time of Solid Sphere Regenerator

作　　者：吕情恒[1] 程素森[1] 杨天钧[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《北京科技大学学报》2004年第4期366-368,共3页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50144005)

摘　　要：以加热炉中烟气出口处蓄热体为研究对象,建立了一维非稳态导热过程的数学模型,采用有限差分法进行模型的离散化.使用C++语言开发了计算球体蓄热体热饱和时间的程序,确定了蓄热体热饱和时间与各种影响因素之间的关系.结果表明,对流换热系数的增加会缩短蓄热体的热饱和时间,而蓄热体热容、密度及其半径的增加均使得蓄热体的热饱和时间线性增加.The regenerator in the outlet of a reheating furnace was studied. A one-dimensional unsteady state model was set up, and discretization was gotten through finite difference method. A program of computing the heat saturating time of the solid sphere regenerator was developed by C++ language. The relationship between the heat saturating time and the factors which influence the time was determined. It is shown that the heat saturating time decreases when the heat convection coefficient increases; whereas the increase of heat capacity, density and diameter of regenerator make the heat saturating time increase linearly.

关 键 词：蓄热体 热饱和时间 数学模型 

分 类 号：TF777[冶金工程—钢铁冶金]