绝热结构对太阳能界面蒸发性能影响的实验研究  

Experimental Study on the Influence of Insulation Structure on Solar Interface Evaporation Performance

作　　者：张弛[1] 苏风民[1] 王一凡 常超[1] 纪玉龙[1] 马鸿斌[1] ZHANG Chi;SU Fengmin;WANG Yifan;CHANG Chao;JI Yulong;MA Hongbin(Institute of Marine Thermal Energy Engineering,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]大连海事大学轮机热能工程研究所,辽宁大连116026

出　　处：《水处理技术》2022年第11期41-46,共6页Technology of Water Treatment

基　　金：辽宁省自然科学基金-航运联合基金(2020-HYLH-33);中央高校基本科研业务费(3132021228)。

摘　　要：太阳能界面蒸发技术将太阳能光热转换集中在气液界面处,具有不需要消耗额外能源、响应速度快、结构简单等优点,已经成为实现高效光热转换的新方式。本文使用碳粉作为吸光材料,将其用聚乙烯醇沉积在纤维素海绵上,制备出一种加工容易,成本低廉的蒸发器,并通过实验分析了蒸发器结构与太阳辐照强度变化对太阳能界面蒸发过程的影响规律,探讨了上述规律形成的原因。研究发现:通过在蒸发器中设计一个绝热层,可以有效地提高蒸发效率,其效率最大可以提高28%。另外,相同蒸发器结构条件下,随着太阳辐照强度的增强,绝热层对蒸发速率的强化作用随之增强。本文研究将有助于太阳能界面蒸发技术从理论走向实际。The solar interface evaporation technology concentrates the solar thermal conversion at the gas-liquid interface.It has the advantages of not requiring additional energy consumption,fast response speed,and simple structure.It has become a new way to achieve high-efficiency photothermal conversion.In this paper,carbon powder is used as a light-absorbing material,and polyvinyl alcohol is deposited on the cellulose sponge to prepare an evaporator that is easy to process and low in cost.The influence law of the interface evaporation process,and the reasons for the formation of the above law are discussed.The study found that by designing an insulating layer in the evaporator,the evaporation efficiency can be effectively improved,and the efficiency can be increased by up to 28%.In addition,under the same evaporator structure,with the increase of sunlight intensity,the strengthening effect of the insulation layer on the evaporation rate increases.The research in this article will help the solar interface evaporation technology move from theory to practice.

关 键 词：太阳能 界面蒸发 海水淡化 实验 

分 类 号：P747[天文地球—海洋科学]