为探究太阳能光伏光热一体化（PV/T）系统在太阳能资源相对贫乏地区应用时的性能,在重庆市长寿区搭建PV/T系统实验平台并展开研究。实验结果表明：PV/T系统在夏季和冬季均表现出良好的发电性能,日平均发电效率分别为14.08%、14.59%;夏季日平均热效率可达35.47%,单日收集的热量可使1 m3水箱内的水温提升22.0 ℃;冬季日平均热效率较低,仅为12.41%。采用敏感性分析方法对比太阳辐照度、冷却水温度、环境温度3个因素对系统发电性能的影响程度,三者的敏感性系数分别为110.15、20.09、5.60,系统对太阳辐照度的敏感性最高。
Abstract
In order to explore the performance of solar photovoltaic thermal （PV/T） system in the area of relatively poor solar energy resources, we set up a PV/T system experimental platform in Changshou District of Chongqing and carried out the research. The experimental results indicate that： The PV/T system exhibits merit power generation performance in summer and winter, with daily average power generation efficiencies of 14.08% and 14.59%, respectively. The average daily thermal efficiency in summer can reach 35.47%, and the heat collected in a single day makes the water temperature in the 1 m3 tank rise by 22.0 ℃; The average daily thermal efficiency in winter is 12.41%. Use the sensitivity analysis method to compare the impact degree of solar irradiance, cooling water temperature and ambient temperature on the power generation performance of the system. The sensitivity coefficients of the three factors are 110.15, 20.09, and 5.60, respectively, and the system has the highest sensitivity to solar irradiance This study provides reference for the application of PV/T system in Chongqing and other areas with relatively poor solar energy resources.
关键词
光伏光热一体化 /
电效率 /
热效率 /
敏感性分析
Key words
PV/T /
electrical efficiency /
thermal efficiency /
sensitivity analysis
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参考文献
[1] 中国建筑能耗与碳排放研究报告(2023年)[J]. 建筑,2024(2): 46-59.
Research Report on Energy Consumption and Carbon Emissions of Chinese Buildings(2023)[J]. Construction and architecture, 2024,(2): 46-59.
[2] 董梓童. 上半年光伏产业发展活力十足[N]. 中国能源报,2023-07-24(015).
DONG Z T. The photovoltaic industry was full of vitality in the first half of the year[N]. China Energy News, 2023-07-24(015).
[3] HERRANDO M, WANG K, HUANG G, et al.A review of solar hybrid photovoltaic-thermal (PV-T) collectors and systems[J]. Progress in energy and combustion science, 2023, 97: 101072.
[4] 肖丽仙, 何永泰, 彭跃红, 等. 温度对光伏电池转换特性影响的理论及实验研究[J]. 电测与仪表, 2014, 51(17): 62-66.
XIAO L X, HE Y T, PENG Y H, et al.Theory and experiment study on temperature effects on photovoltaic cell conversion characteristics[J]. Electrical measurement & instrumentation, 2014, 51(17): 62-66.
[5] FAYAZ H, RAHIM N A, HASANUZZAMAN M, et al.Numerical and experimental investigation of the effect of operating conditions on performance of PVT and PVT-PCM[J]. Renewable energy, 2019, 143: 827-841.
[6] SOLANKI C S.Solar photovoltaics fundamentals, technologies and applications[M]. PHI Learning Pvt. Ltd., 2015.
[7] KERN JR E C, RUSSELL M C. Combined photovoltaic and thermal hybrid collector systems[R]. Massachusetts Inst. of Tech., Lexington (USA). Lincoln Lab., 1978.
[8] HERRANDO M, MARKIDES C N, HELLGARDT K.A UK-based assessment of hybrid PV and solar-thermal systems for domestic heating and power: System performance[J]. Applied energy, 2014, 122: 288-309.
[9] BIGORAJSKI J, CHWIEDUK D.Analysis of a micro photovoltaic/thermal-PV/T system operation in moderate climate[J]. Renewable energy, 2019, 137: 127-136.
[10] 宋石海, 庄春龙, 张洪宇. 重庆地区建筑太阳能PV/T系统性能模拟研究[J]. 重庆建筑, 2013, 12(8): 22-24.
SONG S H, ZHUANG C L, ZHANG H Y.Simulation study on solar PV/T system performance of building in Chongqing[J]. Chongqing architecture, 2013, 12(8): 22-24.
[11] Weiss W, Spörk-Dür M.Solar heat worldwide[R]. Gleisdorf: AEE-Institute for Sustainable Technologies, 2022.
[12] 姚玉璧, 郑绍忠, 杨扬, 等. 中国太阳能资源评估及其利用效率研究进展与展望[J]. 太阳能学报, 2022, 43(10): 524-535.
YAO Y B,ZHENG S Z,YANG Y, et al.Progress and prospects on solar energy resource evaluation and utilization efficiency in china[J]. Acta energiae solaris sinica, 2022, 43(10): 524-535.
[13] LAM J C, HUI S C M. Sensitivity analysis of energy performance of office buildings[J]. Building and environment, 1996, 31(1): 27-39.
[14] 刘大龙, 刘加平, 侯立强, 等. 气象要素对建筑能耗的效用差异性[J]. 太阳能学报, 2017, 38(7): 1794-1800.
LIU D L, LIU J P, HOU L Q, et al.Differentiation analysis of meteorological parameters affecting building energy consumption[J]. Acta energiae solaris sinica, 2017, 38(7): 1794-1800.
[15] 车继刚, 南晓红, 刘立军, 等. 直膨式太阳能热泵集热蒸发器设计参数敏感性分析[J]. 太阳能学报, 2021, 42(5): 343-349.
CHE J G, NAN X H, LIU L J, et al.Sensitivity analysis of design parameters of collector for direct-expansion solar assisted heat pump water heater[J]. Acta energiae solaris sinica, 2021, 42(5): 343-349.
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