开发一种新型太阳能系统,将热管纳入多孔外,以模拟抛融化的过程
M Sheikholeslami1,2, M J Sarmadi3,4, Ladan Momayez5
1Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Islamic Republic of Iran. mohsen.sheikholeslami@nit.ac.ir.
Scientific reports
|December 9, 2025
概括
这项研究通过使用具有抛物线反射器和先进材料的新型热管集热器来提高太阳能热效率. 该设计显著增强了热传输和能量储存,提高了PCM融性能.
科学领域:
- 可再生能源系统可再生能源系统
- 太阳能热能转换方式
- 热传递增强 热传递增强
背景情况:
- 传统的热管太阳能集热器在整体效率和储能方面存在局限性.
- 先进的热管理策略对于优化太阳能热系统性能至关重要.
- 阶段变换材料 (PCM) 和纳米材料为改善热传输和储存提供了潜力.
研究的目的:
- 为了数值分析一个新的热管太阳能集热器设计与一个抛物线反射器相结合.
- 研究先进的热管理策略对效率和储能的影响.
- 评估光学度,纳米材料增强和多孔介质的综合效应.
主要方法:
- 热管太阳能集热器与抛物线反射器集成的数值分析.
- 使用 (RT31) 与MWCNT纳米颗粒作为相变材料 (PCM).
- 使用水与混合Ag-MoS2纳米颗粒作为工作流体,并结合多孔金属泡.
- 通过用户定义函数 (UDF) 纳入热物理特征,并考虑辐射热传递.
主要成果:
- 抛物线反射器使热管,石英和水的温度分别提高了31.62%,31.43%和11.82%.
- 使用反射器的PCM液体分数是反射器的2.897倍,这表明融性能有所改善.
- 组合增强 (反射器,混合纳米粒子,多孔泡) 导致显著的温度增加和3.247倍高的PCM液分.
结论:
- 综合设计通过结合光学度,纳米材料增强和多孔介质传导,显著提升了传统的热管太阳能系统.
- 这种配置显示了提高太阳能热效率和加速储能的巨大潜力.
- 该研究强调了先进材料和设计策略的有效性,以实现可持续的太阳能利用.
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