【摘要】 根据空气与水顺流和逆流直接接触热质交换过程的模型公式,利用MATLAB软件对一冷却减湿过程进行计算,分析了空气与水顺、逆流直接接触热质交换过程的传质单元数NTUm、传热单元数NTUh、水气比β以及空气与水的出口状态参数、过程的热交换系数和接触系数的不同,得出了有用的结论,为蒸发冷却设备的设计及实验数据分析,提供了理论指导和新方法。更多还原

【Abstract】 Based on general equations of the air water heat and mass transfer process in direct contact forward flow and backward flow, calculations on the state parameters of air and water and dimensionless parameters such as number of heat transfer unit NTU _h, number of mass transfer unit NTU _m , waterair flow ratio β etc., of a dehumidifying cooling process by the use of MATLAB are given in this paper. After analysis and comparison, useful conclusions for designing evaporation cooling equipment and analyzing experiment data are proposed.更多还原