Design and realization of a new concentrating photovoltaic solar energy module based on lossless horizontally staggered light guide

Download
2013
Selimoğlu, Özgür
Concentrating Photovoltaic systems are good candidates for low cost and clean electricity generation from solar energy. CPV means replacing much of the expensive semiconductor photovoltaic cells with the cheaper optics. Although the idea is simple, CPV systems have several problems inherent to their system design, such as module thickness, expensive PV cells and overheating. Light guide systems are good alternatives to classical CPV systems that can clear off most of the problems of those systems. In this thesis we explore a new light-guide based solar concentrator by optical design and simulations. It is shown that this solar concentrator can reach 1000x geometric concentration, 96.5% optical efficiency with a ±1 degree acceptance angle. As a result of simulations, effectiveness of the horizontally staggered light guide solar concentrators is proved. A practical module study is carried on to improve the knowledge related to light guide CPV systems. The concentrator geometry is fabricated as a medium concentrator system with a geometric concentration of 45x and +-2 degrees acceptance angle. With the prototype level injection molding 74% optical efficiency is achieved and can be improved with a better mold manufacturing. A cost analyses is also performed with real manufacturing parameters and it is shown that grid parity can be achieved with this kind of light guide solar concentrators.

Suggestions

Analysis And Assessment Of Daily And Seasonal Photovoltaic Heat İsland Effect On Sekbandemirli Rural Region By Local Weather Data Records
DEMİREZEN, EMRE; ÖZDEN, TALAT; Akınoğlu, Bülent Gültekin (2022-1-01)
Photovoltaic Power Plants have a considerable share among solar energy conversion technologies toward environmentally sustainable and economically feasible electricity production. However, when a rural region's land surface formed by natural soil types is covered by a Photovoltaic Power Plant (PVPP)'s dark-colored solar modules in large numbers, an artificial albedo (reflectivity) change is expected on that surface. Because of the heat exchange between these modules and the air surrounding them due to albed...
Computational fluid dynamic analysis of wind loads acting on ground mounted solar panels /
Uslu, Veysel Emre; Sarıtaş, Afşin; Uzol, Oğuz; Department of Civil Engineering (2014)
Solar energy becomes more important day by day as a result of being part of renewable energy and increasing energy consumption. Although development of photovoltaic panels is enjoying the attention of many researchers, there has not been enough study towards determination of the loads acting on supporting structures of these systems yet. In this thesis, CFD analysis is mainly employed in order to model, analyze and understand the effects of the wind forces acting on solar panels. Also, different from previo...
Novel metal assisted etching technique for enhanced light management in black crystalline SI solar cells /
Es, Fırat; Turan, Raşit; Department of Chemistry (2015)
Photovoltaic (PV) technology needs higher performance - lower cost materials and structures in order to catch the grid parity and become an everyday use power source. The most commonly used material in PV, crystalline silicon, suffers from low absorption due to its indirect band gap nature. In order to overcome this problem, several light trapping structures have been used that increase the path length of photons inside the absorbing body of the device. However, conventional light trapping schemes cannot be...
Analytical Modelling, Simulation and Comparative Study of Multi-Junction Solar Cells Efficiency
Hadjdida, Abdelkader; Bourahla, Mohamed; Ertan, Hulusi Bülent; Bekhti, Mohamed (2018-12-01)
Currently, solar energy is promising the primary source of renewable energy that has a great potential to generate power for an extremely low operating cost when compared to already existing power generation technologies. Increasing the efficiency of solar cells is a major goal and the prominent factor in photovoltaic system research. Current triple junction solar cells reach 30% and the next generation will bring 35% in 5 years to peak at 40%. These cells are used in space environment and in terrestrial sy...
Modeling and financial analysis of a solar-biomass hybrid power plant in Turkey
Özdemir, Merve; Yozgatlıgil, Ahmet; Department of Mechanical Engineering (2017)
Solar thermal and biomass combustion systems can be hybridized via a Rankine cycle to have a continuous electricity generation and lower CO2 footprint. Disadvantages of these two renewable technologies can be overcome by hybridization. In this work; we develop a simulation model for Rankine cycle based, solar-biomass hybrid power plants using the ASPEN PLUS software. Solar parabolic collectors and biomass combustion are arranged in parallel to produce steam for power generation. Using the simulation model; ...
Citation Formats
Ö. Selimoğlu, “Design and realization of a new concentrating photovoltaic solar energy module based on lossless horizontally staggered light guide,” Ph.D. - Doctoral Program, Middle East Technical University, 2013.