Simulation of structure and power generation for Self-Compacting concrete hollow slab solar pavement with micro photovoltaic array. (October 2022)

• Record Type: Journal Article
• Authors: Zha, Xudong; Qiu, Mengxuan; Hu, Hengwu; Hu, Jinxiang; Lv, Ruidong; Pan, Qinxue
• Is Part Of: Sustainable energy technologies and assessments. Volume 53:Part D(2022)
• Publication Date: 2022-10
• Subjects: Solar pavement -- Micro photovoltaic array -- Hollow slab -- Numerical simulation -- Simulation optimization; Renewable energy sources -- Periodicals; Energy development -- Technological innovations -- Periodicals; Electric power production -- Periodicals; Energy storage -- Periodicals; 333.79
• DOI: 10.1016/j.seta.2022.102798
• Languages: English
• ISSNs: 2213-1388

Abstract

Graphical abstract: A novel hollow slab solar pavement structure, which makes full use of the solar energy resources within the road range, and provides a reference for the future research on solar pavement. Highlights: A self-compacting concrete hollow slab solar pavement with micro photovoltaic can satisfy both traffic and power generation functions array was proposed; The finite element numerical simulation and power generation simulation of the pavement structure were carried out; The material, size and micro photovoltaic array layout of the structure were determined; The techno-economy of the self-compacting concrete hollow slab was analyzed in comparison; 1 km of two-way four-lane pavement could reduce by 2.15 × 10 7 kg of CO2 emissions. Abstract: To explore new solar pavements, a self-compacting concrete hollow slab solar pavement based on a micro photovoltaic array was proposed. The hollow slab solar pavement is composed of three layers: a surface transparent protection slab, a middle micro photovoltaic array, and a bottom concrete base slab. Using ANSYS software and PVsyst software, through the 3D finite element numerical simulation and power generation simulation of the pavement structure, based on orthogonal experimental design and single-factor sensitivity analysis, the structure size of the hollow slab and the layout mode of the micro photovoltaic array were optimized. Then, the optimal hollow slab model was determined. The results show that the optimal size of the hollow slab is 1000 × 1000 × 250 mm; the tilt, azimuth, pitch and edge distance of the solar cells in the best layout mode of the micro photovoltaic array are 18°, 0°, 45 mm and 65 mm, respectively; the power generation capacity in the first year is 140.697 kWh. The life cycle economic analysis indicates that the increased cost can be recovered through the power generation income after 10.2 years, and 1 km of two-way four-lane pavement could reduce by 2.15 × 10 7 kg of CO2 emissions, with good economic, social, and environmental benefits.