Bunoti, Timothy
Despite the recorded increase in the installed capacity of solar energy resources globally, its use in urban areas is still limited and hindered due to the lack of sufficient solar real estate in cities. Irregularity of the city skyline that often results in large shaded areas and the slenderness of high-rise city buildings that limits the available rooftop area for installing conventional solar PV panels have been the main contributors to this phenomenon. Thus, there is a pressing need to devise creative means to harvest solar energy and increase solar real estate in densely populated urban areas. Converting conventional mono-functional building envelope materials into multi-functional energy harvesting ones is one of the ways solar real estate could be expanded in urban areas. As an emerging technology, Luminescent Solar Concentrators have shown the possibility of transforming the predominantly transparent city building facades into solar energy generators while maintaining transparency and unobstructed vistas for the building occupants. However, LSC technology is still in its infancy despite its foreseen potential to expand solar real vi estate in urban areas. Its full growth and quick advancement call for more research efforts to be invested. Thus, this research seeks to add to the ongoing research in this area of technology by proposing an 8 step framework that can be deployed to determine the electrical output of transparent LSC devices. Computer software is used to demonstrate the framework's application on a selected reference building located in a densely populated urban neighbourhood while considering all potential known benefits of this technology, such as adequately functioning under diffuse lighting. The results showed that though the technology is still in its infancy, it can produce enough electricity to subsidize the actual building energy demand by a rather outstanding value annually. This thesis also presents a general overview of PV technology and its advancements while highlighting the milestones, especially regarding power conversion efficiencies and material usage achieved to date.


Seasonal variation of the monthly efficiencies of thin film PV modules
Özden, Talat; Turan, Raşit; Akınoğlu, Bülent Gültekin (null; 2017-12-04)
Outdoor testing of solar photovoltaic (PV) modules must be carried out at different climates as PV power plants nowadays are installed and continues to be installed in many countries. Present study is outdoor testing results and analyses of 5 thin film modules in Ankara, Turkey. The analyses are carried out using monthly efficiencies of the modules that are derived using the energy yield and input. The average efficiencies of the CIS, CIGS and μc-Si/a-Si thin film modules are. We present the monthly and ave...
An analysis on the potential of solar photovoltaic power
Samu, Remember; Fahrioglu, Murat (2017-01-01)
In this present paper, the potential of solar photovoltaic power in Zimbabwe so as to cater for the rising energy demand is assessed. The main objective of this present study is to convert solar resources in 28 different locations scattered all over the country into electrical energy. This investment requires a capital cost of US$18,952,500 and a total land area of 51,020m(2). The 10 MW grid-connected PV potential is feasible for all the chosen locations. Chegutu seems to be the most suitable and profitable...
Assessment of solar data estimation models for four cities in Iran
Jahani, Elham; Sadati, S. M. Sajed; Yousefzadeh, Moslem (2015-04-29)
The estimated solar resources are important for designing renewable energy systems since measured data are not always available. The estimation models have been introduced in several studies. These models are mainly dependent on local meteorological data and need to be assessed for different locations and times. The current study compares the results of Angstrom's model and a neural network (NN) model developed for this study with measured data for four cities in Iran. The time resolution for the estimated ...
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...
Investigation of olive mill sludge treatment using a parabolic trough solar collector
Ben Othman, Fares; Eddhibi, Fathia; Bel Hadj Ali, Abdessalem; Fadhel, Abdelhamid; Bayer, Özgür; Tarı, İlker; Guizani, Amenallah; Balghouthi, Moncef (2022-01-15)
The olive mill sludge treatment system developed in this study is an indirect solar dryer driven by a solar parabolic trough collector (PTC). A heat exchanger is implemented to heat air with hot oil coming from the solar collector. The developed hot air dryer can treat up to 50 kg of olive mill sludge distributed over six trays at once. The designed system and its components are described, along with their experimental and simulated performance evaluations. With a mean direct normal irradiation (DNI) higher...
Citation Formats