吸附式海水淡化循环热力学分析  

THERMODYNAMIC ANALYSIS OF AN ADSORPTION DESALINATION CYCLE

作　　者：王永青[1] 何宏舟[2] 

机构地区：[1]集美大学福建省能源清洁利用与开发重点实验室 [2]集美大学福建省清洁燃烧与能源高效利用工程技术研究中心,厦门361021

出　　处：《太阳能学报》2015年第11期2782-2788,共7页Acta Energiae Solaris Sinica

基　　金：福建省自然科学基金(2012J01227);福建省发改委科技开发项目(省发改委[2012]93号);集美大学创新团队基金(2009A002)

摘　　要：建立双床吸附海水淡化基本循环的数学模型,以硅胶和沸石分子筛为吸附剂,计算并讨论循环的热力性能,结果表明:虽然基本吸附式循环的性能比和效率最大可较常规蒸发式海水淡化系统高约30%,但考虑传热温差、吸附床金属热容等实际因素后其性能并无优势,如能通过有效途径提高吸附床间的回热率,则可成倍提高该系统的热力性能。The coupling of adsorption heat pump with seawater desalination is a new application of adsorption/desorption principle in desalination area, and the performance not very clear so far. The mathematical model of a basic double-bed adsorption desalination cycle was built, using silica gel and zeolite as adsorbent, and the thermodynamic performance of the cycle was calculated and discussed. The results showed that although the performance ratio and exergy efficiency of the basic cycle are maximally more than 30% higher than those of the conventional evaporation desalination system, its performance is not favorable after considering the practical factors such as heat-transfer temperature difference, heat capacity of bed metal, and so on. Higher heat recovet^y rate between/among the beds can lead to multiple growth of thermal performance.

关 键 词：吸附式热泵 海水淡化 热力循环 热力性能 

分 类 号：TK123[动力工程及工程热物理—工程热物理]