使用地下换热器冷却PVT系统:一项实验研究
Saif H Majeed1, Amar S Abdul-Zahra1, Dheya G Mutasher1
1Mechanical Engineering Department, University of Technology-Iraq, Baghdad 10001, Iraq.
ACS omega
|August 28, 2023
概括
这项研究介绍了一种新的光伏热 (PVT) 系统与伊拉克的地下热交换器. 在恶劣的天气条件下,PVT系统显著提高了127.3%的面板冷却和电效率.
科学领域:
- 可再生能源系统可再生能源系统
- 热力工程是热力工程中的一个.
- 光伏技术 光伏技术
背景情况:
- 光伏热 (PVT) 系统正在研究提高性能和面板冷却.
- 对于光伏电池板来说,有效的冷却至关重要,特别是在炎热的气候下.
- 地下换热器为冷却应用提供稳定的温度来源.
研究的目的:
- 为了调查PVT系统与伊拉克巴格达地下热交换器相结合的性能.
- 评估在极端夏季条件下PVT系统的冷却效应和电效提高.
- 评估拟议系统在中东和北非地区的可行性和效率.
主要方法:
- 一个带有单晶光伏面板和螺旋式换热器的PVT系统连接到一个3U形的21米铜管,埋在地下4米处.
- 该系统在2022年7月至8月期间在伊拉克巴格达进行了测试,经历了恶劣的天气条件.
- 在4米深处记录了土壤温度,并在0.18 l/s的流速下测量了PVT系统的性能.
主要成果:
- 地下热交换器站点在4米深处保持了22.5°C的稳定土壤温度.
- 与独立的光伏面板相比,PVT系统实现了大约20°C的表面温度降低.
- 与独立的光伏系统相比,光伏系统的电效率增加了127.3%.
结论:
- 采用地下换热器实现的PVT系统是提高光伏电池板在炎热气候下性能的可行解决方案.
- 该系统在面板冷却和电效率方面都取得了显著的改进.
- 研究结果表明,即使在经过测试的最恶劣的天气条件下,拟议的系统也有效.
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