集成光伏热系统利用前面表面水冷却技术:一个实验性性能响应反应
Khodadad Mostakim1, Md Ridwanul Akbar1, Md Aminul Islam2
1Department of Mechanical Engineering, Rajshahi University of Engineering & Technology, Rajshahi - 6204, Bangladesh.
这项研究介绍了一种新的喷水光伏热 (PVT) 系统,该系统可将光伏电池板的效率提高到16.78%,并实现70.6%的热效率. 该系统为同时生产电力和热水提供了一个可持续的解决方案.
科学领域:
- 可再生能源工程可再生能源工程
- 可持续能源技术 可持续能源技术
- 热力工程是热力工程中的一个.
背景情况:
- 优化光伏 (PV) 面板的操作温度对于提高光伏热 (PVT) 系统的能量转换效率至关重要.
- 现有的光伏发电系统面临着有效管理面板温度的挑战,同时生产电力和热能.
- 需要创新的冷却机制来提高光伏系统的性能和效率.
研究的目的:
- 引入和评估一种新的喷水光伏热 (PVT) 系统,用于同时发电和热水.
- 调查水流速和倾斜角度对光伏电池板效率和集热器热性能的影响.
- 评估喷水冷却机制在降低光伏面板温度和提高整体系统效率方面的有效性.
主要方法:
- 设计了一个PVT系统,包括一个平板集热器和一个用于冷却光伏面板的喷水机制.
- 实验进行了各种水流速和45度固定倾斜角度的实验.
- 测量和分析了光伏面板温度,输出水温以及电气/热效率.
主要成果:
- 发现面板效率的最佳倾斜角度为45度.
- 较高的水流率导致收集器出口温度降低.
- 热效率达到70.6%的峰值,热水温度为84.6°C.
- 太阳能电池板效率提高了高达16.78%,特别是在1.56L/分钟的流量下.
- 面板温度从45.08°C降低到34.12°C.
- 自动清洁喷雾机制提高了2.53%,导致整体系统效率达到83.3%.
结论:
- 喷水PVT系统有效地提高了电力发电和热能生产.
- 喷水冷却技术通过降低工作温度,显著提高了光伏电池板的性能.
- 该系统展示了可持续和高效的能源采集的有希望的方法,为整体系统效率提供了显著的改进.
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