地道通风系统传热传质性能的实验研究  

Experiment Research on Heat and Mass Transfer Properties of Underground Duct System

作　　者：周晓慧[1] 杨柳[1] 张孝怡[1] ZHOU Xiao-hui;YANG Liu;ZHANG Xiao-yi(Yunnan Institute of Building Research,Kunming 650223,China)

机构地区：[1]云南省建筑科学研究院,昆明650223

出　　处：《建筑节能》2018年第4期70-73,共4页BUILDING ENERGY EFFICIENCY

摘　　要：地道通风系统降温是指利用地道冷却空气,通过送风系统送至地面的建筑物,达到室内空气降温的目的。利用热探针法测试不同质量含水率土壤的导热系数,并建立土壤一维传热传质实验的测试,分析在地道通风系统中土壤含水率对传热传质的影响,为地道通风系统的实际应用提供参考和依据。Underground duct system makes use of tunnels to cool the air,and the cooled air is sent to buildings above the ground through air supply system in order to reduce indoor temperature.The heat conductivity coefficients of soil with different moisture contents were determined experimentally by using the hot probe method,experiments and tests were conducted concerning soil heat and mass transfer process under one-dimension.And then the effect with comparative soil moisture content of the heat transfer coefficient is analyzed,which provide theoretical principles for the practical application of air in underground duct system.

关 键 词：地道通风 传热传质 质量含水率 导热系数 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]