不同土质条件下土壤高温蓄热中热湿传递的实验研究  

EXPERIMENTAL STUDY ON HEAT AND MOISTURE TRANSFER IN SOIL HEAT CHARGING AT HIGH TEMPERATURE FOR VARIOUS SOILS

作　　者：陈红兵[1] 丁翰婉 刘松雨[1] 吴玮[1] 

机构地区：[1]北京建筑大学北京市"供热供燃气通风及空调工程"重点实验室,北京100044

出　　处：《太阳能学报》2015年第9期2314-2318,共5页Acta Energiae Solaris Sinica

基　　金：北京市科技新星项目(2011029);北京市青年拔尖人才项目(CIT&TCD201304067)

摘　　要：针对太阳能-土壤源热泵非采暖季土壤高温蓄热中的热湿传递现象,搭建一维土壤高温蓄热实验装置,选取砂土和壤土两种不同土质,研究不同蓄热温度和土壤初始含水率条件下,土壤温度场和湿度场随时间和空间的变化趋势以及在两种土质中的差别,探讨和分析热湿传递相互影响规律和作用机理。实验结果表明,砂土比壤土蓄热效果好、速度快。To investigate the mechanism of heat and pump system, a testing rig of one-dimension soil heat c moisture transfer in soil heat charging for solar-soil source heat harging was constructed. Two different soils, sand and loam, were used for the testing. The soil temperature distribution and volumetric water content （VWC）variations were studied under different heat source temperature and soil initial VWC, and the difference between these two soils was analyzed as well. The coupled and mutual effect of heat and moisture transfer was discussed. The study showed that sand was better than loam in soil heat charging.

关 键 词：高温蓄热 热湿迁移 含水率 温度分布 

分 类 号：TK512.4[动力工程及工程热物理—热能工程]