...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Experimental and theoretical analysis of glazed tube-and-sheet photovoltaic/thermal system with earth water heat exchanger cooling
【24h】

Experimental and theoretical analysis of glazed tube-and-sheet photovoltaic/thermal system with earth water heat exchanger cooling

机译：带地下水热交换器的玻璃管板式光伏/热力系统的实验和理论分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present paper, an attempt has been made to investigate the theoretical and practical performances of the photovoltaic/thermal (PV/T) system coupled with earth water heat exchanger (EWHE) cooling system for the conditions of semi-arid region of Pilani, Rajasthan. The experimental studies have been performed for different flow rates of cooling water (0.033 kg/s, 0.025 kg/s and 0.017 kg/s) for a typical day climatic conditions. An electrical efficiency comparison was made for two scenarios when the PV panel was connected or disconnected with the thermal collector and found out that the average electrical efficiency of PV/T panels is higher than the normal PV efficiency. The results of the experimental study showed that the maximum PV panel temperature goes up to 73 degrees C without any cooling. On the other hand, the PV panel temperature drops in the range of 43.68-49.64 degrees C with the flow rate of 0.033 kg/s. It has been estimated that the electrical and thermal efficiencies of the PV/T system with cooling are in the range of 8.26-8.52% and 44.06-55.45% respectively for flow rate of 0.033 kg/s. The EWHE pipe length of 38 m found to be sufficient for the proposed system. The experimental results are validated with the theoretical model by using basic energy balance equations and found in good agreement with percentage error of 0.91-12.09%.
机译：本文尝试研究Pilani半干旱地区条件下的光伏/热（PV / T）系统与地下水热交换器（EWHE）冷却系统结合的理论和实际性能，拉贾斯坦邦。对于典型的白天气候条件，已经针对不同的冷却水流量（0.033 kg / s，0.025 kg / s和0.017 kg / s）进行了实验研究。在将PV面板与集热器连接或断开时，针对两种情况进行了电效率比较，结果发现PV / T面板的平均电效率高于正常PV效率。实验研究的结果表明，在不进行任何冷却的情况下，光伏面板的最高温度可升至73摄氏度。另一方面，PV板温度在0.033 kg / s的流速下下降了43.68-49.64摄氏度。据估计，对于0.033 kg / s的流量，带冷却的PV / T系统的电效率和热效率分别在8.26-8.52％和44.06-55.45％的范围内。发现EWHE管道长度为38 m对于建议的系统已足够。利用基本的能量平衡方程，用理论模型对实验结果进行了验证，结果吻合良好，百分误差为0.91-12.09％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号