太阳能热风采暖系统中岩石床蓄热特性研究  

Research on Heat Storage Performance of Rock Bed in Solar Hot Air Heating System

作　　者：付博亨 庄春龙[1] 黄光勤[1] 王楠[1] 席新宇[1] 

机构地区：[1]中国人民解放军后勤工程学院国防建筑规划与环境工程系,重庆401311

出　　处：《兵器装备工程学报》2016年第11期142-145,161,共5页Journal of Ordnance Equipment Engineering

摘　　要：以太阳能热风采暖系统中岩石床为研究对象,建立岩石床的传热数学模型,模拟分析不同结构、材质对岩石床蓄热性能的影响;针对具体工程,应结合当地岩石种类,选取导热系数小,容积比热容大的岩石作为蓄热材料;当岩石大小不均匀时,应沿空气流动方向,按粒径由大至小的顺序摆放岩石;在一定条件下,岩石床堆放高度越高,蓄热速率越快,建议垂直摆放岩石。The study focused on the rock bed in solar hot air heating system,and set up the heat transfer mathematical model,and after analyzed the effects of different structures and materials on the heat storage performance of rock bed. In light of actual condition,lower thermal conductivity and larger specific heat capacity rock should be selected as heat materials acc-ording to the local rock types. When the rock sizes is unevenly,rocks are suggested to arrange from big to small in the air flow direction. Under certain conditions,the rate of heat storage will increase with the height stacking higher,so rocks are suggested to place vertically.

关 键 词：太阳能 岩石床 数学模型 蓄热特性 

分 类 号：TK519[动力工程及工程热物理—热能工程]