摘要
为研究日光温室南北向地表面热湿耦合传递的规律,以一栋日光温室为试验平台,对南北向地表面温湿度场、地表面辐射强度以及近地空气温湿度进行了连续测试。结果表明:无论是夜间的冷凝过程还是白天的蒸发过程,温室中部地表面的温湿度变化梯度最大,换热量最大;白天8:00-18:00时间段内,地表水分发生蒸发现象,土壤含水率下降,夜间18:00-次日8:00时间段内,近地表空气发生冷凝现象,土壤含水率上升。
In order to investigate the behavior of the coupled heat and moisture transfer of the ground surface in north-south direction for sunlight greenhouse, an actual greenhouse was taken as study object to test the variation of soil temperature and moisture, the intensity of radiation and temperature and moisture of air. The results show that for either the condensation process in night or the evaporation process in day, the middle surface has the biggest gradient in soil tem-perature and humidity and the largest heat transfers, soil moisture significantly decreases because of evaporation during 8：00 -18：00 period in day; soil moisture significantly increases. When con-densation occurs during 18： 00 - 8： 00 of the next day.
作者
崔思宇
杜震宇
CUI Siyu;DU Zhenyu(College of Environmental Science and Engineering , Taiyuan University of Technology , Taiyuan 030024, Chin)
出处
《太原理工大学学报》
北大核心
2017年第6期934-938,共5页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(51476108)
关键词
热湿耦合
地表面
蒸发冷凝
hot and humid coupling
ground surface
evaporation and condensation
