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蜂细胞结构在滴CNT膜中形成,用于高效的太阳能吸收器应用

Saiful Islam^1,2, Hiroshi Furuta^1,2

¹School of Systems Engineering, Kochi University of Technology, Kochi 782-8502, Japan.

Nanomaterials (Basel, Switzerland)

|October 25, 2024

概括

在基板上的多壁碳纳米管 (MWCNT) 蜂巢涂层显著增强了太阳能热吸收. 具有17%细胞面积比率的优化结构可以实现高温,以实现高效的太阳能应用.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
可再生能源可再生能源是可再生能源.

背景情况:

太阳能热吸收器对于可再生能源应用至关重要.
提高吸收效率需要先进的材料涂层.
多壁碳纳米管 (MWCNTs) 提供有前途的光学和热性能.

研究的目的:

研究MWCNT涂层,以改善太阳能热吸收.
分析自我组织的蜂巢结构和细胞面积比率 (CARs) 对吸收的影响.
在不同辐射强度下评估光学性能和热性能.

主要方法:

使用滴滴造制造MWCNT涂层吸收器与蜂结构.
不同的CARs从~60%到17%.
光学属性测量 (400-1651 nm) 和太阳能热性能评估 (0.04-0.39 W/cm2). 这些测量包括光学性能测量 (400-1651 nm) 和太阳能热性能评估 (0.04-0.39 W/cm2).

主要成果:

蜂结构具有~17%的CAR实现了高温吸收,尽管可见反射率中等 (8.4%在550nm).
对于17%的CAR结构,红外反射显著增加 (80.5%在1321nm).
17%的CAR结构在所有辐射水平上始终达到更高的吸收温度 (52.5°C至285.5°C).

结论:

优化的MWCNT蜂结构,特别是约17%的CAR,对高温太阳能热吸收有效.
较低的可见红外反射比与更高的温度吸收效率相关.
这种方法为经济高效的大规模生产高效的太阳能热吸收器提供了潜力,用于水的加热和净化.

关键词:

在CNT中,CNT是CNT.滴射造技术的使用方法蜂巢结构是蜂巢结构.太阳能吸收器可以吸收太阳能太阳辐射强度太阳辐射强度频谱选择性频谱选择性

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