Olufunmilayo Alice MAFIMIDIWO | University of KwaZulu-Natal (original) (raw)
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Papers by Olufunmilayo Alice MAFIMIDIWO
Journal of Energy in Southern Africa, Sep 22, 2017
Electricity generated from a concentrated thermal photovoltaic system can be improved upon for op... more Electricity generated from a concentrated thermal photovoltaic system can be improved upon for optimum output. This investigation considered the various options of optimising system operation via effective control of the operating conditions. It examined various options of varying the system configurations for optimised system efficiency and power output and at minimum operating costs. The number of mirrors and photovoltaic cells for use in the concentrated thermal photovoltaic system were set at eight as standard for the system operation. This number was varied down and up (from eight to six and then from eight to ten) to study the effects of these variations on the concentrated thermal photovoltaic system efficiency and generated power output. A novel thermal model was built in two dimensions and was used to simulate the thermal performance of the concentrated thermal photovoltaic modules. The parameters used for the materials involved were defined and the appropriate physics applied in the study of various operating conditions that affected the system performance for the two-dimensional system were stated. The results showed that temperature rise was least in the ten mirrors configuration and highest in the six mirrors configuration. The six PV cells-mirrors configuration, however, generated the highest power output of the three different configurations considered. The six PV cells/mirrors configuration utilised the least numbers of mirrors and PV cells out of the three configurations, ultimately translating to reduced-materials cost for the operation. Based on these findings, the choice of the lower number of six mirrors and six PV cells was considered the most economical and, therefore, most desirable.
African Journal of Science, Technology, Innovation and Development, Jul 4, 2017
In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utiliza... more In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utilization of the global irradiation incident on the photovoltaic panel is necessary. Solar irradiation received on the surface of any material on the earth could be considered as the power absorbed in the entire volume of that material and could be measured in Watts per unit volume. This is the technology behind the three-dimensional photovoltaic structure. The three-dimensional photovoltaic structure is a new technology consisting of photovoltaic modules assembled in a three-dimensional configuration. This paper mathematically utilizes the three-dimensional nature of the photovoltaic panel to analyze the effectiveness of measuring energy in per unit volume. The solar energy generated in Durban in the month of January was utilized as an example to analyse and compare the output solar energy generated for both the 3-D and the 2-D system options. The results obtained are compared and discussed.
The ability to understand and calculate the optical, electrical and absorption properties of sola... more The ability to understand and calculate the optical, electrical and absorption properties of solar materials are vital in performance prediction of a photovoltaic system. Simulation tools are required for computing accurately thermal and electrical parameters of intricate three-dimensional geometrical structures and system performance prediction. The tools used in this work were MATLAB 12b and COMSOL Multiphysics Version 5.1. Poor photovoltaic system design consideration contributes to low system efficiency because of inherent radiation losses which are not converted to electric power but increase the photovoltaic cells' temperature among others. The results obtained showed that the generated heat in the photo voltaic system raised the temperature of the system and consequently dropped the system's efficiency and generated output power with increasing temperature.
Recent research conducted on improving solar power generation and efficiency has led to the study... more Recent research conducted on improving solar power generation and efficiency has led to the study and the use of new technology in three-dimensionality in achieving these tasks. This paper presents the modelling and simulation of a concentrated thermal photovoltaic system in two-dimensions and three-dimensions to investigate the effect of three-dimensional technology on concentrated thermal photovoltaic structures of similar capacity and materials. The results showed that the performances of the system modelled in three-dimensions is better than that modelled in two-dimensions in terms of the generated output power as well as the efficiency. Furthermore, the point graphs and other simulated plots were obtained on the modelled two-concentrated thermal photovoltaic system and the three-concentrated thermal photovoltaic system. The results obtained revealed that the damaging effect of temperature was much less on the three-dimensional concentrated thermal photovoltaic system than that of the two-dimensional concentrated thermal photovoltaic system.
Journal of Energy in Southern Africa, Jul 20, 2016
In a renewable energy system, incorporating threedimensional technology in solar power generation... more In a renewable energy system, incorporating threedimensional technology in solar power generation takes advantage of the three-dimensional nature of the biosphere so that energy collection occurs in a volume, contrary to what is commonly obtained in planar or flat photovoltaic panel. Three-dimensional photovoltaic technologies are capable of generating more power from the same base area when compared to the conventional flat solar panels. This investigation examines methodologies for computation and analyses the effect of height per unit volume compared with a plain surface arrangement. The results show remarkable increase in the energy generated by the three-dimensional photovoltaic structure over the two-dimensional planar structures.
2018 IEEE PES/IAS PowerAfrica, 2018
The ability to understand and calculate the optical, electrical and absorption properties of sola... more The ability to understand and calculate the optical, electrical and absorption properties of solar materials are vital in performance prediction of a photovoltaic system. Simulation tools are required for computing accurately thermal and electrical parameters of intricate three-dimensional geometrical structures and system performance prediction. The tools used in this work were MATLAB 12b and COMSOL Multiphysics Version 5.1. Poor photovoltaic system design consideration contributes to low system efficiency because of inherent radiation losses which are not converted to electric power but increase the photovoltaic cells' temperature among others. The results obtained showed that the generated heat in the photo voltaic system raised the temperature of the system and consequently dropped the system's efficiency and generated output power with increasing temperature.
First and foremost, to the Glory of God Almighty through His only begotten son Jesus Christ, who ... more First and foremost, to the Glory of God Almighty through His only begotten son Jesus Christ, who grants the Grace and enablement and makes everything possible for me, according to the faithfulness of His promise and Glory of His name. To my loving husband, my confidant, trusted, proven and best friend, Mr Bamidele Adeniyi Mafimidiwo, for his unflinching love and support at all times and for his encouragement all along. I thank you for believing in me, for standing by me at all times, for continuously being a loving husband and a caring father to our children-Olugbenga, Oluwaseyi, Ololade and Omotunde who also have shown great understanding and have given their support all through these years. To the cherished memories of my late parents, Pa Michael Ariyibi Soyebi and Mrs Janet Amoke Modupeola Soyebi for the legacy they left behind. The teachings and discipline they instilled in me have propelled me thus far. My late sister, Esther Oluranti Folami, I will ever appreciate the motherly role you took over and did perfectly well. Your memories remain evergreen. To Dr. Samuel Ayodele Iwarere-for your immense supports in every way possible and your encouragement all through to the completion of this work. You are part of my testimonies. v PREFACE This research was carried out by Olufunmilayo Alice Mafimidiwo under the supervision of Dr.
2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA), 2019
Recent research conducted on improving solar power generation and efficiency has led to the study... more Recent research conducted on improving solar power generation and efficiency has led to the study and the use of new technology in three-dimensionality in achieving these tasks. This paper presents the modelling and simulation of a concentrated thermal photovoltaic system in two-dimensions and three-dimensions to investigate the effect of three-dimensional technology on concentrated thermal photovoltaic structures of similar capacity and materials. The results showed that the performances of the system modelled in three-dimensions is better than that modelled in two-dimensions in terms of the generated output power as well as the efficiency. Furthermore, the point graphs and other simulated plots were obtained on the modelled two-concentrated thermal photovoltaic system and the three-concentrated thermal photovoltaic system. The results obtained revealed that the damaging effect of temperature was much less on the three-dimensional concentrated thermal photovoltaic system than that ...
Electricity generated from a concentrated thermal photovoltaic system can be improved upon for op... more Electricity generated from a concentrated thermal photovoltaic system can be improved upon for optimum output. This investigation considered the various options of optimising system operation via effective control of the operating conditions. It examined various options of varying the system configurations for optimised system efficiency and power output and at minimum operating costs. The number of mirrors and photovoltaic cells for use in the concentrated thermal photovoltaic system were set at eight as standard for the system operation. This number was varied down and up (from eight to six and then from eight to ten) to study the effects of these variations on the concentrated thermal photovoltaic system efficiency and generated power output. A novel thermal model was built in two dimensions and was used to simulate the thermal performance of the concentrated thermal photovoltaic modules. The parameters used for the materials involved were defined and the appropriate physics appl...
African Journal of Science, Technology, Innovation and Development
In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utiliza... more In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utilization of the global irradiation incident on the photovoltaic panel is necessary. Solar irradiation received on the surface of any material on the earth could be considered as the power absorbed in the entire volume of that material and could be measured in Watts per unit volume. This is the technology behind the three-dimensional photovoltaic structure. The three-dimensional photovoltaic structure is a new technology consisting of photovoltaic modules assembled in a three-dimensional configuration. This paper mathematically utilizes the three-dimensional nature of the photovoltaic panel to analyze the effectiveness of measuring energy in per unit volume. The solar energy generated in Durban in the month of January was utilized as an example to analyse and compare the output solar energy generated for both the 3-D and the 2-D system options. The results obtained are compared and discussed.
Journal of Energy in Southern Africa, 2016
In a renewable energy system, incorporating threedimensional technology in solar power generation... more In a renewable energy system, incorporating threedimensional technology in solar power generation takes advantage of the three-dimensional nature of the biosphere so that energy collection occurs in a volume, contrary to what is commonly obtained in planar or flat photovoltaic panel. Three-dimensional photovoltaic technologies are capable of generating more power from the same base area when compared to the conventional flat solar panels. This investigation examines methodologies for computation and analyses the effect of height per unit volume compared with a plain surface arrangement. The results show remarkable increase in the energy generated by the three-dimensional photovoltaic structure over the two-dimensional planar structures.
Electricity generated from a concentrated thermal photovoltaic system can be improved upon for op... more Electricity generated from a concentrated thermal photovoltaic system can be improved upon for optimum output. This investigation considered the various options of optimising system operation via effective control of the operating conditions. It examined various options of varying the system configurations for optimised system efficiency and power output and at minimum operating costs. The number of mirrors and photovoltaic cells for use in the concentrated thermal photovoltaic system were set at eight as standard for the system operation. This number was varied down and up (from eight to six and then from eight to ten) to study the effects of these variations on the concentrated thermal photovoltaic system efficiency and generated power output. A novel thermal model was built in two dimensions and was used to simulate the thermal performance of the concentrated thermal photovoltaic modules. The parameters used for the materials involved were defined and the appropriate physics applied in the study of various operating conditions that affected the system performance for the two-dimensional system were stated. The results showed that temperature rise was least in the ten mirrors configuration and highest in the six mirrors configuration. The six PV cells-mirrors configuration, however, generated the highest power output of the three different configurations considered. The six PV cells/mirrors configuration utilised the least numbers of mirrors and PV cells out of the three configurations, ultimately translating to reduced-materials cost for the operation. Based on these findings, the choice of the lower number of six mirrors and six PV cells was considered the most economical and, therefore, most desirable .
Journal of Energy in Southern Africa, Sep 22, 2017
Electricity generated from a concentrated thermal photovoltaic system can be improved upon for op... more Electricity generated from a concentrated thermal photovoltaic system can be improved upon for optimum output. This investigation considered the various options of optimising system operation via effective control of the operating conditions. It examined various options of varying the system configurations for optimised system efficiency and power output and at minimum operating costs. The number of mirrors and photovoltaic cells for use in the concentrated thermal photovoltaic system were set at eight as standard for the system operation. This number was varied down and up (from eight to six and then from eight to ten) to study the effects of these variations on the concentrated thermal photovoltaic system efficiency and generated power output. A novel thermal model was built in two dimensions and was used to simulate the thermal performance of the concentrated thermal photovoltaic modules. The parameters used for the materials involved were defined and the appropriate physics applied in the study of various operating conditions that affected the system performance for the two-dimensional system were stated. The results showed that temperature rise was least in the ten mirrors configuration and highest in the six mirrors configuration. The six PV cells-mirrors configuration, however, generated the highest power output of the three different configurations considered. The six PV cells/mirrors configuration utilised the least numbers of mirrors and PV cells out of the three configurations, ultimately translating to reduced-materials cost for the operation. Based on these findings, the choice of the lower number of six mirrors and six PV cells was considered the most economical and, therefore, most desirable.
African Journal of Science, Technology, Innovation and Development, Jul 4, 2017
In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utiliza... more In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utilization of the global irradiation incident on the photovoltaic panel is necessary. Solar irradiation received on the surface of any material on the earth could be considered as the power absorbed in the entire volume of that material and could be measured in Watts per unit volume. This is the technology behind the three-dimensional photovoltaic structure. The three-dimensional photovoltaic structure is a new technology consisting of photovoltaic modules assembled in a three-dimensional configuration. This paper mathematically utilizes the three-dimensional nature of the photovoltaic panel to analyze the effectiveness of measuring energy in per unit volume. The solar energy generated in Durban in the month of January was utilized as an example to analyse and compare the output solar energy generated for both the 3-D and the 2-D system options. The results obtained are compared and discussed.
The ability to understand and calculate the optical, electrical and absorption properties of sola... more The ability to understand and calculate the optical, electrical and absorption properties of solar materials are vital in performance prediction of a photovoltaic system. Simulation tools are required for computing accurately thermal and electrical parameters of intricate three-dimensional geometrical structures and system performance prediction. The tools used in this work were MATLAB 12b and COMSOL Multiphysics Version 5.1. Poor photovoltaic system design consideration contributes to low system efficiency because of inherent radiation losses which are not converted to electric power but increase the photovoltaic cells' temperature among others. The results obtained showed that the generated heat in the photo voltaic system raised the temperature of the system and consequently dropped the system's efficiency and generated output power with increasing temperature.
Recent research conducted on improving solar power generation and efficiency has led to the study... more Recent research conducted on improving solar power generation and efficiency has led to the study and the use of new technology in three-dimensionality in achieving these tasks. This paper presents the modelling and simulation of a concentrated thermal photovoltaic system in two-dimensions and three-dimensions to investigate the effect of three-dimensional technology on concentrated thermal photovoltaic structures of similar capacity and materials. The results showed that the performances of the system modelled in three-dimensions is better than that modelled in two-dimensions in terms of the generated output power as well as the efficiency. Furthermore, the point graphs and other simulated plots were obtained on the modelled two-concentrated thermal photovoltaic system and the three-concentrated thermal photovoltaic system. The results obtained revealed that the damaging effect of temperature was much less on the three-dimensional concentrated thermal photovoltaic system than that of the two-dimensional concentrated thermal photovoltaic system.
Journal of Energy in Southern Africa, Jul 20, 2016
In a renewable energy system, incorporating threedimensional technology in solar power generation... more In a renewable energy system, incorporating threedimensional technology in solar power generation takes advantage of the three-dimensional nature of the biosphere so that energy collection occurs in a volume, contrary to what is commonly obtained in planar or flat photovoltaic panel. Three-dimensional photovoltaic technologies are capable of generating more power from the same base area when compared to the conventional flat solar panels. This investigation examines methodologies for computation and analyses the effect of height per unit volume compared with a plain surface arrangement. The results show remarkable increase in the energy generated by the three-dimensional photovoltaic structure over the two-dimensional planar structures.
2018 IEEE PES/IAS PowerAfrica, 2018
The ability to understand and calculate the optical, electrical and absorption properties of sola... more The ability to understand and calculate the optical, electrical and absorption properties of solar materials are vital in performance prediction of a photovoltaic system. Simulation tools are required for computing accurately thermal and electrical parameters of intricate three-dimensional geometrical structures and system performance prediction. The tools used in this work were MATLAB 12b and COMSOL Multiphysics Version 5.1. Poor photovoltaic system design consideration contributes to low system efficiency because of inherent radiation losses which are not converted to electric power but increase the photovoltaic cells' temperature among others. The results obtained showed that the generated heat in the photo voltaic system raised the temperature of the system and consequently dropped the system's efficiency and generated output power with increasing temperature.
First and foremost, to the Glory of God Almighty through His only begotten son Jesus Christ, who ... more First and foremost, to the Glory of God Almighty through His only begotten son Jesus Christ, who grants the Grace and enablement and makes everything possible for me, according to the faithfulness of His promise and Glory of His name. To my loving husband, my confidant, trusted, proven and best friend, Mr Bamidele Adeniyi Mafimidiwo, for his unflinching love and support at all times and for his encouragement all along. I thank you for believing in me, for standing by me at all times, for continuously being a loving husband and a caring father to our children-Olugbenga, Oluwaseyi, Ololade and Omotunde who also have shown great understanding and have given their support all through these years. To the cherished memories of my late parents, Pa Michael Ariyibi Soyebi and Mrs Janet Amoke Modupeola Soyebi for the legacy they left behind. The teachings and discipline they instilled in me have propelled me thus far. My late sister, Esther Oluranti Folami, I will ever appreciate the motherly role you took over and did perfectly well. Your memories remain evergreen. To Dr. Samuel Ayodele Iwarere-for your immense supports in every way possible and your encouragement all through to the completion of this work. You are part of my testimonies. v PREFACE This research was carried out by Olufunmilayo Alice Mafimidiwo under the supervision of Dr.
2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA), 2019
Recent research conducted on improving solar power generation and efficiency has led to the study... more Recent research conducted on improving solar power generation and efficiency has led to the study and the use of new technology in three-dimensionality in achieving these tasks. This paper presents the modelling and simulation of a concentrated thermal photovoltaic system in two-dimensions and three-dimensions to investigate the effect of three-dimensional technology on concentrated thermal photovoltaic structures of similar capacity and materials. The results showed that the performances of the system modelled in three-dimensions is better than that modelled in two-dimensions in terms of the generated output power as well as the efficiency. Furthermore, the point graphs and other simulated plots were obtained on the modelled two-concentrated thermal photovoltaic system and the three-concentrated thermal photovoltaic system. The results obtained revealed that the damaging effect of temperature was much less on the three-dimensional concentrated thermal photovoltaic system than that ...
Electricity generated from a concentrated thermal photovoltaic system can be improved upon for op... more Electricity generated from a concentrated thermal photovoltaic system can be improved upon for optimum output. This investigation considered the various options of optimising system operation via effective control of the operating conditions. It examined various options of varying the system configurations for optimised system efficiency and power output and at minimum operating costs. The number of mirrors and photovoltaic cells for use in the concentrated thermal photovoltaic system were set at eight as standard for the system operation. This number was varied down and up (from eight to six and then from eight to ten) to study the effects of these variations on the concentrated thermal photovoltaic system efficiency and generated power output. A novel thermal model was built in two dimensions and was used to simulate the thermal performance of the concentrated thermal photovoltaic modules. The parameters used for the materials involved were defined and the appropriate physics appl...
African Journal of Science, Technology, Innovation and Development
In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utiliza... more In order to optimize the solar energy generated from a photovoltaic solar panel, adequate utilization of the global irradiation incident on the photovoltaic panel is necessary. Solar irradiation received on the surface of any material on the earth could be considered as the power absorbed in the entire volume of that material and could be measured in Watts per unit volume. This is the technology behind the three-dimensional photovoltaic structure. The three-dimensional photovoltaic structure is a new technology consisting of photovoltaic modules assembled in a three-dimensional configuration. This paper mathematically utilizes the three-dimensional nature of the photovoltaic panel to analyze the effectiveness of measuring energy in per unit volume. The solar energy generated in Durban in the month of January was utilized as an example to analyse and compare the output solar energy generated for both the 3-D and the 2-D system options. The results obtained are compared and discussed.
Journal of Energy in Southern Africa, 2016
In a renewable energy system, incorporating threedimensional technology in solar power generation... more In a renewable energy system, incorporating threedimensional technology in solar power generation takes advantage of the three-dimensional nature of the biosphere so that energy collection occurs in a volume, contrary to what is commonly obtained in planar or flat photovoltaic panel. Three-dimensional photovoltaic technologies are capable of generating more power from the same base area when compared to the conventional flat solar panels. This investigation examines methodologies for computation and analyses the effect of height per unit volume compared with a plain surface arrangement. The results show remarkable increase in the energy generated by the three-dimensional photovoltaic structure over the two-dimensional planar structures.
Electricity generated from a concentrated thermal photovoltaic system can be improved upon for op... more Electricity generated from a concentrated thermal photovoltaic system can be improved upon for optimum output. This investigation considered the various options of optimising system operation via effective control of the operating conditions. It examined various options of varying the system configurations for optimised system efficiency and power output and at minimum operating costs. The number of mirrors and photovoltaic cells for use in the concentrated thermal photovoltaic system were set at eight as standard for the system operation. This number was varied down and up (from eight to six and then from eight to ten) to study the effects of these variations on the concentrated thermal photovoltaic system efficiency and generated power output. A novel thermal model was built in two dimensions and was used to simulate the thermal performance of the concentrated thermal photovoltaic modules. The parameters used for the materials involved were defined and the appropriate physics applied in the study of various operating conditions that affected the system performance for the two-dimensional system were stated. The results showed that temperature rise was least in the ten mirrors configuration and highest in the six mirrors configuration. The six PV cells-mirrors configuration, however, generated the highest power output of the three different configurations considered. The six PV cells/mirrors configuration utilised the least numbers of mirrors and PV cells out of the three configurations, ultimately translating to reduced-materials cost for the operation. Based on these findings, the choice of the lower number of six mirrors and six PV cells was considered the most economical and, therefore, most desirable .