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将汲液多孔陶瓷管组成被动蒸发制冷墙,干燥空气与含湿多孔管表面进行热湿传递,产生蒸发制冷效果,通过多孔材料主动吸水补充散失的水分。沿气流方向,邻近各排多孔陶瓷管分别以交错排列和平行排列方式组合。本文以数值分析与实验相结合的方法分析了含湿多孔管的组合方式、排数和邻近管之间的间距等组合墙体的结构形式以及空气的相对湿度、温度、风速和太阳辐射等气候条件对组合墙体制冷特性的影响。非饱和多孔介质含湿多孔陶瓷管的汲液特性即毛细升高特性,受含湿多孔介质孔隙率、粒径和饱和度的影响。在含湿多孔陶瓷管中填充含湿砂石后,对其制冷特性的变化进行了实验研究。所得结果为汲液式被动蒸发多孔墙体推广和应用提供一定的指导。
Pouring liquid porous ceramic tube composed of passive evaporation refrigeration wall, dry air and wet porous pipe surface heat and moisture transfer, resulting in evaporation cooling effect, through the active absorption of porous materials to supplement the lost water. Along the air flow direction, adjacent to each row of porous ceramic tubes are staggered and parallel arrangement of the combination. In this paper, the combination of numerical analysis and experiment is analyzed. The combination of wet porous pipe, the number of rows and the distance between adjacent tubes and other combinations of wall structure and the relative humidity of air, temperature, wind speed and solar radiation and other climate Influence of conditions on the refrigeration characteristics of combined wall. The characteristics of the wicking properties of the porous ceramic tubes with unsaturated porous media, namely the wicking properties, are affected by the porosity, particle size and saturation of the porous media containing moisture. After wet-filled porous ceramic tube filled with wet sand, the change of its refrigeration characteristics was experimentally studied. The obtained results provide some guidance for the popularization and application of the porous liquid-based passive evaporation wall.