直接蒸发冷却过程不可逆热动力学分析

在对直接蒸发冷却过程进行热、动力学分析的基础上，把实际过程中抽象成空气纵掠湿平板同时发生传热和传质过程的物理模型并应用不可逆热力学理论，建立了能反映在各广义热力学推动下，过程热动力学特性的数学模型。它由一个包括熵产率方程。能量方程和质量方程构成的微分方程组，为探讨直接蒸发冷却过程中的传递机理及提高热、质交换设备的热力学完善度提供理论依据。

Analysis of Non-equilibrium Thermodynamics on the Transport Processes in Direct Evaporative Cooling

The transport processes in direct evaporative cooling (DEC) are analyzed and the physical model, forced air flow passing over a wet plate with simultaneous heat and mass transfer, is abstracted from the real DEC processes. A mathematical model will be presented based on the non-equilibriumthermodynamics. The model can indicate the thermodynamic and dynamic characterastics of the transport phenomena forced by the potential of generalized thermodynamics and it consists of a group of differential equations including the entropy generation equation, energy and mass conservative equations. The model will provide a theoretical basis in the studying on the transport mechanism of direct evaporative cooling. Also, it is useful to improve the Thermodynamics-perfection of the trasport processes and optimize heat and mass exchanging equipment.