温室中岩床蓄热性的分析  

A ANALYSIS OF HEAT STORAGE CHARACTERISTIC FOR ROCK BED IN PASSIVE SOLAR GREENHOUSE

作　　者：陈威[1] 刘伟[1] 许国良[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《工程热物理学报》2004年第4期679-681,共3页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展规划项目资助(No.G2000026303);国家自然科学基金项目资助(No.59976010);教育部博士点基金项目资助(No.2000048731)

摘　　要：本文针对被动式太阳温室岩床蓄热系统,分析了岩床孔隙率、粒径和材料对岩床蓄热的影响。岩床应分层铺设, 岩床上部孔隙率、粒径相对较大;超过一定深度后,铺设孔隙率、粒径小的岩石;热容量(pc)和导热系数影响岩床平均温 度日变幅和热惯性。In this paper, the effects of bed porosity, rock size and rock material on the heat storage of bed have been studied .The rock bed needs to be divided into two layers, the larger bed porosity and rock exists in the upper, in the excess of a certain depth, the smaller rock and bed porosity is in the bed. The specific heat capacity and thermal conductivity have a remarkable effect on the average temperature of rock bed versus time

关 键 词：太阳能利用 蓄热 岩床 

分 类 号：TK124[动力工程及工程热物理—工程热物理]