An Evaluation of the PV Integrated Dynamic Overhangs Based on Parametric Performance Design Method: A Case Study of a Student Apartment in China

Weifan Long, Xiaofei Chen, Qingsong Ma, Xindong Wei and Qiao Xi
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Weifan Long: College of Architecture and Urban Planning, Qingdao University of Technology, Qingdao 266033, China
Xiaofei Chen: College of Architecture and Urban Planning, Qingdao University of Technology, Qingdao 266033, China
Qingsong Ma: College of Architecture and Urban Planning, Qingdao University of Technology, Qingdao 266033, China
Xindong Wei: School of Environmental and Municipal Engineering, Jilin Jianzhu University, Changchun 130118, China
Qiao Xi: College of Architecture and Urban Planning, Qingdao University of Technology, Qingdao 266033, China

Sustainability, 2022, vol. 14, issue 13, 1-18

Abstract: A photovoltaic shading device (PVSD) is a promising technology that can both generate electricity and provide shading to reduce indoor energy consumption. This paper aims to evaluate the performance of three PVSD design strategies in five Chinese cities by using a proposed all-in-one simulation program, according to the parametric performance design method. The program can be used to predict the energy consumption, power generation, and economic feasibility of different PVSD strategies. It was, firstly, calibrated through an actual experiment which was carried out in Qingdao and, secondly, used to simulate the energy consumption and generation of the three PVSD strategies in relation to the optimal angles and heights. Finally, the program was used to calculate the energy efficiency and economic feasibility of the three strategies. The findings indicated that the move-shade strategy of PVSD can provide the best energy-saving performance, followed by rotate-shade and fixed-shade strategies. Compared to the no-shade strategy, the reduction of the net energy use intensity by using the move-shade strategy was 31.80% in Shenzhen, 107.36% in Kunming, 48.37% in Wuhan, 61.79% in Qingdao, and 43.83% in Changchun. The payback periods of the three strategies ranged from 5 to 16 years when using the PVSD in China.

Keywords: PVSD; parametric design; performance evaluation; net energy use intensity (EUI); power generation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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