太阳能海水淡化动态仿真和生命周期成本分析  

DYNAMIC SIMULATION AND LIFE CYCLE COSTANALYSIS OF SOLAR DESALINATION SYSTEM

作　　者：杨辰斌 杨其国 徐洪涛[1] 张剑飞[2] 张伟康 Yang Chenbin;Yang Qiguo;Xu Hongtao;Zhang Jianfei;Zhang Weikang(College of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;College of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]西安交通大学能源与动力工程学院,西安710049

出　　处：《太阳能学报》2023年第8期355-361,共7页Acta Energiae Solaris Sinica

摘　　要：设计一种由槽式集热器和多级闪蒸装置构成的全天候太阳能海水淡化系统,日均淡水产量为3000 m3。应用上海市的气象数据,引入多级闪蒸简化算法,采用TRNSYS软件进行动态仿真,并利用生命周期成本分析法对设计系统和常规能源淡化系统进行经济性对比。结果表明:太阳能淡化系统的年平均太阳能保证率为41.11%;在整个生命周期中,位于上海市的太阳能淡化系统单位造水成本为18.48元/m3;当通货膨胀率低于8.5%或天然气价格高于2.09元/m3时,太阳能淡化系统相较于同等规模的常规能源淡化系统,具有更好的经济性。A full-time solar desalination system composed of the trough solar collector and multi-stage flash device is proposed.The average production of distilled water of this system is 3000 m3 per day.By the simplified algorithm of multi-stage flash process,the dynamic simulation is accomplished by TRNSYS software under the climate of Shanghai.The life cycle cost analysis is adopted to compare the economy between the designed system and a desalination system driven by conventional energy.The results indicate that the average solar fraction per year is 41.11%for the solar desalination system.Throughout the life cycle,the unit desalinated water production cost of the proposed system is 18.48 yuan/m3 in Shanghai.The solar desalination system has better economic performance than the conventional energy desalination system of the same scale,when the inflation rate is under 8.5%or the gas price is beyond 2.09 yuan/m3.

关 键 词：太阳能 海水淡化 生命周期 多级闪蒸 动态仿真 

分 类 号：TK519[动力工程及工程热物理—热能工程]