Annual analysis of a multi-functional BIPV/T solar wall system in typical cities of China

被引：30
作者：
Xu, Lijie [1 ]
Ji, Jie [1 ]
Luo, Kun [1 ]
Li, Zhaomeng [1 ]
Xu, Ruru [1 ]
Huang, Shengjuan [1 ]
机构：
[1] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Peoples R China
来源：
ENERGY | 2020年 / 197卷
基金：
中国国家自然科学基金;
关键词：
Building integrated PV/T; PV/Air-heating; PV/Water-heating; Annual performance evaluation; Parameters discussions; TROMBE WALL; PERFORMANCE; ENERGY; COLLECTOR;
D O I：
10.1016/j.energy.2020.117098
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Firstly, this paper introduces a novel multi-functional BIPV/T wall system in order to satisfy building's seasonal energy demand in China. This system can generate electricity during the whole year. In heating season, hot air is created to decrease heating load for the building. In non-heating season, hot water is generated to supply the household demand. Meanwhile temperature of PV panel is decreased by water cycle, therefore higher electrical performance is able to be achieved. Secondly, mathematical model is established and verified by the experimental results. Thirdly, annual performance of the system in three different typical cities are evaluated. The annual electrical generation in Beijing, Hefei and Xining are 247.7 kWh, 152.6 kWh and 268.4 kWh respectively. The solar fraction in Beijing, Hefei and Xining are 49.9%, 38.7% and 41.3% respectively. The system is able to satisfy 79.1%, 66.8% and 60.4% hot water energy demand in these cities respectively. The overall annual energy saving in Beijing, Hefei and Xining are 2661.8 kWh, 1908.4 kWh and 2412.3 kWh respectively. Fourthly, the impact of external/internal PV structures, Si/CdTe solar cells and aspect ratio of the system are investigated respectively. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：15
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