水基碳纳米管纳米流体在室外自然条件下的光热性能研究  

STUDY ON PHOTO-THERMAL CONVERSION CHARACTERISTICS OF WATER-BASED CARBON NANOTUBES IN OUTDOOR NATURAL CONDITION

作　　者：宗美林 叶晓江[1,2] 常怀钟 侯志坚[3] Zong Meilin;Ye Xiaojiang;Chang Huaizhong;Hou Zhijian(School of Science,Wuhan Institute of Technology,Wuhan 434200,China;School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;School of Mechanical and Electrical Engineering,Shenzhen Polytechnic,Shenzhen 518055,China)

机构地区：[1]武汉工程大学理学院,武汉434200 [2]华中科技大学材料科学与工程学院,武汉430074 [3]深圳职业技术学院机电学院,深圳518055

出　　处：《太阳能学报》2020年第5期48-53,共6页Acta Energiae Solaris Sinica

基　　金：湖北省教育厅重点项目(D20111505)。

摘　　要：通过两步法制备碳纳米管水基纳米流体,进行不同浓度纳米流体的光吸收特性和光热转换特性研究。结果表明:在去离子水中添加少量碳纳米管能显著提高对光的吸收性能;当纳米流体质量分数达到0.1%时,对光基本表现出不可透过性;纳米流体的光热转换效率随着质量分数的增加而降低,最高为37.31%。The water-based carbon nanotubes nanofluids were prepared by two-step method. The light absorption properties and photo-thermal conversion characteristics of those were studied. The results showed that the addition of a small amount of carbon nanotubes to deionized water could significantly improve the absorption of light. The light would be impermeability when the mass fraction of nanofluids reached 0.1%. The photo-thermal conversion efficiency of nanofluids decreased as the mass fraction increased and its maximum value was 37.31%.

关 键 词：碳纳米管 光学特性 太阳能 光热转换 纳米流体 

分 类 号：TK51[动力工程及工程热物理—热能工程]