湿垫内“水─气”间热质交换过程的理论分析  

THEORETICAL ANALYSIS OF HEAT AND MASS TRANSFER BETWEEN WATER AND VAPOR IN WET PAD

作　　者：张继元[1,2] 

机构地区：[1]华中农业大学工程技术学院 [2]国立莫斯科建筑工程大学

出　　处：《农业机械学报》1999年第4期47-50,共4页Transactions of the Chinese Society for Agricultural Machinery

摘　　要：为完善湿垫风机系统在农业建筑夏季蒸发冷却中的应用，研究了湿垫冷却装置在喷淋水完全蒸发条件下的热质交换特征，经理论推导给出了确定喷淋水量及湿垫合理参数的计算式。Environmental control of agricultural buildings by cooling technique of water evaporation is widely used in summer. In general, spraying water is not completely evaporated and is recirculated. From the point of view of energy saving, it is suggested to control the amount of wetting water precisely and to make it just be entirely evaporated. To improve the cooling system, the characteristics of heat and mass transfer of a wet pad cooling device are studied under the circumstance of spraying water completely evaporated and the formulas for determining the volume of spraying water and proper parameters of the wet pad are derived.

关 键 词：蒸发冷却 湿垫 水-气 热质交换 农业建筑 

分 类 号：S26[农业科学—农业水土工程]