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自然气候控制多孔含湿材料蒸发冷却的热湿特征
引用本文:孟庆林. 自然气候控制多孔含湿材料蒸发冷却的热湿特征[J]. 西安建筑科技大学学报(自然科学版), 2001, 33(4): 325-328
作者姓名:孟庆林
作者单位:华南理工大学建筑学院,广东,广州,510640
基金项目:国家自然科学基金项目(59808006)和广东省自然科学基金项目(960243,970443)
摘    要:表现在蒸发率Es随时间t衰减的轮廓线,固体呈指数曲线状,松散材料则呈“S”形状,松散材料比固体材料对湿迁移表现有较强的敏感性;新发现了受材料表面和底面上的周期性热作用控制,材料层内部存在一个动态湿分沉积面,其运动轨迹经历一个由“生成(Generate)-潜入(Immerse)-浮出(Floation)-消散(Dissipation)”的周期性循环现象。

关 键 词:亚热带气候 多孔介质 蒸发率 温度波衰减
文章编号:1006-7930(2001)04-0325-04
修稿时间:2001-07-28

Thermal and moisture characteristics of moist porous media with passive evaporation cooling under natural climate
MENG Qing lin. Thermal and moisture characteristics of moist porous media with passive evaporation cooling under natural climate[J]. Journal of Xi'an University of Architecture & Technology, 2001, 33(4): 325-328
Authors:MENG Qing lin
Abstract:The damping configuration curves of vaporizing rate Es vs time t for moist porous media is discussed in this paper. It shows the exponent shape for integrated porous material and "S" shape for loose medium which is much more sensitive to moisture migration than to the integrated ones. A dynamic moisture sedimentary interface is also found existing in the medium, which is influenced by periodic thermal impact on the top and bottom surface of the medium, and it moves periodically following the course: generation-immersion-floation-dissipation.
Keywords:subtropical climate  porous mediums  passive evaporation  vaporizing rate  damping of temperature wave
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