通过使用砂芯矩阵的混合方案,提高的相变材料的性能
Hossam A Nabwey1,2, Maha A Tony3,4
1Department of Mathematics, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, 11942, Al-Kharj, Saudi Arabia. eng_hossam21@yahoo.com.
Scientific reports
|September 5, 2024
概括
这项研究开发了一种新型相变材料 (PCM),使用包装在石中的铁丰富砂芯,用于智能废物回收利用. 优化的1.5%砂芯-PCM系统显著提高了92%的太阳能储能效率.
科学领域:
- 材料科学 材料科学 材料科学
- 废物管理 废物管理
- 可再生能源可再生能源是可再生能源.
背景情况:
- 智能废物管理和利用对于可持续的资源利用至关重要.
- 从采矿废水中回收铁,为材料的再利用提供了途径.
- 换相材料 (PCM) 是高效的热能存储的关键.
研究的目的:
- 开发和描述一种基于砂芯的新型相变材料 (PCM),使用从废水中提取的铁.
- 在太阳能储能系统中研究封装砂芯-PCM的性能.
- 为了优化砂芯-PCM的度,以获得最大的热量增益和系统效率.
主要方法:
- 铁是从采矿废水中提取出来的,并与沙子结合,形成一个沙芯.
- 砂芯颗粒被封装在石中,以形成相变材料 (PCM).
- 描述涉及X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 与能量分散式X射线光谱 (EDS).
- 实验设置包括连接到平板太阳能集热器的垂直换热器,使用水作为传热流体.
主要成果:
- 沙芯-PCM已成功合成和表征.
- 在太阳能收集器系统中测试了不同质量百分比的 (0.5%,1.0%,1.5%,2.0%) 沙芯-PCM.
- 1.5%的砂芯PCM系统显示了显著的热量增益增强,从7到48kJ/min.
- 总体系统效率达到92%的优化砂芯-PCM度.
结论:
- 开发的富含铁的砂芯-PCM是太阳能储能的一个有前途的材料.
- 这种方法有效地利用了采矿废水中的废铁.
- 优化的系统提供了一种可持续的解决方案,用于在非高峰期储存太阳能,提高系统效率.
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