反渗透海水淡化系统火用分析及计算

基于火用分析方法对反渗透海水淡化系统中各设备的火用效率和火用损失进行了分析，并结合实际案例进行了计算。结果表明：系统中膜组件火用损率最大，火用效率较低，是影响反渗透海水淡化系统能效水平提高的关键因素，高压泵是反渗透海水淡化系统主要的用能设备，降低反渗透海水淡化制水成本的关键是改善膜性能和降低制备高压海水的成本。

Exergy Analysis and Calculation of Reverse Osmosis Desalination System

Based on the method of exergy analysis ,this article analyzes the exergy efficiency and exergy loss of all equipments in the reverse osmosis desalination system ,and combines with the actual case calculation .The results show ：the exergy loss rate of membrane module in the system is maximum ,and the exergy efficiency is lower ,so the membrane module is the key factorof the energy efficiency level of reverse osmosis desalina-tion system ;high pressure pump is themajor energy -using equipment in the reverse osmosis desalination system ,and the key to decrease the cost of water reverse osmosis desalination system is to improve the mem-brane performance and reduce the cost of the high pressure water .