Experimental study on comprehensive utilization of solar energy and energy balance in an integrated solar house. (15th November 2015)

• Record Type: Journal Article
• Authors: Chang, Huawei; Liu, Yuting; Shen, Jinqiu; Xiang, Can; He, Sinian; Wan, Zhongmin; Jiang, Meng; Duan, Chen; Shu, Shuiming
• Is Part Of: Energy conversion and management. Volume 105(2016)
• Page Start: 967
• Page End: 976
• Publication Date: 2015-11-15
• Subjects: Solar house -- Comprehensive utilization -- Solar energy -- Energy balance -- Zero energy consumption; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2015.08.061
• Languages: English
• ISSNs: 0196-8904

Abstract

Highlights: Active and passive solar house technology is integrated in the solar house. Solar thermal system and solar photoelectric system are measured and analyzed. Energy balance and energy consumption are analyzed with valuable experimental data. "Zero energy consumption" is truly achieved with the solar supply rate of 1.19 in winter. Abstract: An integrated solar house with numerous advanced envelops is designed and constructed to investigate the comprehensive utilization of solar energy, energy efficiency and energy balance, which combines active solar house technology with passive solar house technology including solar photovoltaic system, solar water heating system, direct-gain door and windows. Solar radiation intensity, performance of the photovoltaic system, water temperature, and indoor and outdoor temperature are measured, results of the experiments indicate that solar glass window on the south wall can maintain the average indoor temperature at 21.4 °C in the case of average outdoor temperature at 11.2 °C without any external heat supply. The output current of the solar photovoltaic system shows the same trend as solar radiation intensity. When the intensity is 619.7 W/m 2, the instantaneous generation power could reach a value of 781.9 W, cumulative capacity throughout the day achieves 4.56 kW h and photovoltaic conversion efficiency 9.8%. When the average intensity throughout a day is 358 W/m 2, the solar water heating system could help to raise the temperature of 450 L water by 30 °C with its heat collecting efficiency being 37.4%. Through the analysis of the overall energy system in the solar house, it can be derived that this solar house could achieve "zero energy consumption" in winter with the solar supply rate at 1.19.