一种新型微热管PV/T系统的实验研究  

Experimental Study on a Novel Micro Heat Pipe PV/T System

作　　者：何健 李金平[2] 朱林 赵培植 贾婷婷 何冬花 张雅琴 赵晓芳 He Jian;Li Jinping;Zhu Lin;Zhao Peizhi;Jia Tingting;He Donghua;Zhang Yaqin;Zhao Xiaofang(School of Electrical Engineering,Lanzhou University of Resources and Environment,Lanzhou 730030,Gansu,China;School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730030,Gansu,China)

机构地区：[1]兰州资源环境职业技术大学电力工程学院,甘肃兰州730030 [2]兰州理工大学能源与动力工程学院,甘肃兰州730030

出　　处：《绿色科技》2023年第22期215-219,共5页Journal of Green Science and Technology

基　　金：分布式太阳能系统制冷与供热复合系统的节能研究(编号:2022-ZD-148)。

摘　　要：由于我国西北地区冬季气温通常在零度以下,光伏集热器的集热管可能会结冰。为此,开发了一种微热管技术,通过将光伏板改装到微热管PV/T系统中来调节工作温度。测试将于2021年12月1日至2022年2月28日,每天9:30开始,16:30停止。将冬至日2021年12月24日作为典型天,典型天平均光热效率、平均光电效率和平均总效率分别为26.4%、12.8%和39.4%。微热管中使用的工作介质是R141b,沸点相比丙酮更低,系统效率更高,并根据实验数据做了微热管PV/T表面温度的拟合公式,平均误差为7.1%。该实验研究旨在为微热管PV/T提供科学基础和工程参考,并可为未来带来更高效的太阳能应用。Due to winter temperatures typically below zero degrees Celsius in the northwest region of China,the collector tubes of photovoltaic collectors may freeze.Therefore,a micro heat pipe technology was developed to adjust the working temperature by modifying photovoltaic panels into a micro heat pipe PV/T system.The testing will start from December 1,2021 to February 28,2022 at 9:30 and stop at 16:30.Taking the winter solstice day of December 24,2021 as a typical day,the average photothermal efficiency,average photoelectric efficiency,and average total efficiency of typical scales are 26.4%,12.8%,and 39.4%,respectively.The working medium used in the micro heat pipe is R141b,which has a lower boiling point compared to acetone and higher system efficiency.Based on experimental data,a fitting formula for the surface temperature of the PV/T micro heat pipe was developed,with an average error of 7.1%.

关 键 词：微热管PV/T系统 微热管 光热效率 光电效率 

分 类 号：TK519[动力工程及工程热物理—热能工程]