基于多孔铜-石墨烯异构结构的形式稳定复合相变材料用于太阳能热能转换和储存
Chao Chang1, Bo Li1, Baocai Fu1
1Institute of Marine Engineering and Thermal Science, Marine Engineering College, Dalian Maritime University, Dalian 116026, China.
Polymers
|December 23, 2023
概括
使用铜石墨烯异构的新型稳定型太阳能热储存材料解决了泄漏和低导电性问题. 这些材料有效地储存太阳能,并可以通过热电转换产生电力.
科学领域:
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
- 纳米技术 纳米技术
背景情况:
- 太阳能热能转换和储存对于解决能源供需不平衡至关重要.
- 阶段变换材料 (PCM) 提供有效的能量储存,但热导率低和泄漏.
- 现有的PCM需要在热性能和结构完整性方面进行改进,以实现实际应用.
研究的目的:
- 设计和开发新的形状稳定的太阳能热储存材料.
- 克服传统PCM的局限性,特别是低导热率和泄漏.
- 将高导热率,太阳能吸收和防泄漏性能整合到一个材料中.
主要方法:
- 在多孔的铜-石墨烯 (G-Cu) 异构结构中浸石墨烯PCM.
- 利用G-Cu的多孔结构和大表面积,提高热传导和负载能力.
- 使用小孔和超疏水表面在相变过程中防止泄漏.
主要成果:
- 开发的稳形PCM复合材料显著提高了导热率,达到2.99W/m·K.
- 在太阳能热充电过程中,G-Cu异构结构有效地防止了PCM在太阳能热充电过程中的泄漏.
- 综合系统通过热电芯片成功地将储存的太阳能转化为电力.
结论:
- 新型G-Cu/复合材料为高效和稳定的太阳能热能存储提供了一个有前途的解决方案.
- 这些材料克服了传统PCM的关键局限性,从而提高了性能和可靠性.
- 开发的材料为太阳能收集和直接发电的实际应用铺平了道路.
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