Papers by Engr. France Akpojedje
Tertiary institutions around the world have embraced the development of smart campuses as a means... more Tertiary institutions around the world have embraced the development of smart campuses as a means of monitoring students' activities on campus in recent years. Smart campus, adaptation of smart city, use of campus environment as the foundation for project development. Smart learning, smart libraries and smart sports complexes are examples of smart campus applications, smart healthcare, smart water and waste management, smart energy consumption, smart security and safety management and so on. These procedures make it easier to work together on campuses. This paper focuses on smart campus design on security and safety framework with an emphasis on intrusion on critical facilities that require access permission. When an intruder is detected, the application uses embedded system cameras, which are cameras designed for microcontrollers to receive notification with a new photo and/or sensor data. Intruders are detected using passive infrared (PIR) motion sensors, and the information is sent to the premise owner via telegram bot (Telegram App). The owners can also request general conditions of things from a remote location, whether within the premises or outside the continent, through bi-directional communication. The technology was validated in real-world scenarios and the feedback data was analyzed for potential intruder. The results showed that the model have the capacity of detecting intruder into the defined area and relate information and location of the intruder to the owner of the premises in real-time anywhere in the continent for prompt action. Conclusively, the developed smart campus safety and security framework using IoT has improved the campus security and safety system.
Advances in Multidisciplinary and scientific Research Journal Publication
This paper focuses on the sustainable power supply and ways to enhance it that will culminate int... more This paper focuses on the sustainable power supply and ways to enhance it that will culminate into economic growth now and even in the future, it highlights the importance of sustainable power supply as catalyst to economic development and examines the works of some experts in the area. It also discusses the Nigeria’s under development as a contribution of the inadequate and unsustainable power supply to it, stressing sustainable power supply as a tool for “Economic Growth and Development,” which seems to be mirage presently. The paper having examined the Renewable Energy Sources (RES) as an option for achieving sustainable power supply in Nigeria, it then concluded that Nigeria as a country should encourage the implementation of energy mix involving conventional and renewable technologies to increase power supply that will achieve rapid economic development and generate employment capabilities for its teeming youths, thereby reducing insecurity and other crimes related vices. Keywo...
Advances in Multidisciplinary and scientific Research Journal Publication
The Nigeria power system has been undergoing several policy changes over the years in order to im... more The Nigeria power system has been undergoing several policy changes over the years in order to improve the power system and also to ensure increase in capacity and efficient electricity supply to Nigerians. However, these laudable goals are yet to be achieved and the small megawatts that Nigeria power sector generates are wasted by high reactive loads in many industrial sectors today by operating on low power factor. The aim of this research paper is to demonstrate the impact of power factor correction on energy saving in Nigeria power system. It was realised by installing power factor correction device (PFCD) in some selected consumer’s premises and field measurement was carried out before and after the PFCD installation. Data were recorded during the operating hours of the selected factory site. Conclusively, it was shown that the power factor of the selected factory site was improved from 0.7 to 0.97, thereby increasing the kVA capacity of the electricity supplying transformer by...
Equity Journal of Science and Technology
This paper investigated the tripping profile of the 33 kV feeder of Ugbowo 2 x 15 MVA, 33/11 kV e... more This paper investigated the tripping profile of the 33 kV feeder of Ugbowo 2 x 15 MVA, 33/11 kV electric powerdistribution network. The annual data of daily tripping of the 33 kV feeder from September 2019 to August 2020were collated and collected from the Ugbowo injection substation. The daily outage of the 33 kV feeder was usedto compute the monthly and yearly tripping profile of the sub-transmission line (33 kV feeder) of the Ugbowoinjection substation. The monthly and yearly failure rate, MTTR, MTTF, MTBF, availability, unavailability, SAIFI,SAIDI, ASAI, ASUI, etc. for the period of twelve (12) months were analyzed using the Load Point Indices (LPI)and Microsoft Excel was used graphically to interpret the results of the tripping profile of the 33 kV feeder. Theresults obtained from the analyses of the 33 kV feeder of the network showed that yearly failure rate, MTTR,MTTF, MTBF, unavailability, availability, SAIFI, SAIDI, ASAI and ASUI were 4.32%, 6.520 h, 23.148 h, 29.668h, 21.9...
Engineering and Technology: A Stimulating Transformer for National Development
COMPUSOFT: An International Journal of Advanced Computer Technology, Jan 17, 2017
This paper aims at x-raying "Engineering and Technology" as a stimulating trans... more This paper aims at x-raying "Engineering and Technology" as a stimulating transformer for national development. The present state of engineering and technology, issues, challenges and setback were critically reviewed to see their shortcomings, strength and prospect offered to national development. From the survey carried out, it was revealed that there were lapses and shortcomings in the development of appropriate engineering and technology in Nigeria that will transform meaningful national development. The paper then, further proposes national development building model and way forward in enhancing the national development through the application of appropriate engineering and technology.
Zenodo (CERN European Organization for Nuclear Research), Dec 26, 2021
The unserved load in the Nigerian power system currently is as a result of the ever-growing gap b... more The unserved load in the Nigerian power system currently is as a result of the ever-growing gap between electric energy demand and supply which is one of the major causes of frequent power interruptions. Thus, stabilizing the network, equalization of the available electricity supply with the energy demand becomes necessary, of which demand side management (DSM) is a veritable tool being deployed to match the ever-growing energy demand with the available electricity supply. Consequently, this paper presents a concise overview of demand side management scheme and its modeling for matching electricity supply with the ever-growing energy demand in the Nigerian power system. The residential, commercial, industrial and special customers load in the network were used for the modeling and binary particle swarm optimization (BPSO) algorithm was adopted for optimizing the models. The load shifting technique was used to control and carried out load shifting during the peak period. Both customers and utility benefits were considered using the BPSO algorithm and the results showed that the technique can match the available electricity supply with the evergrowing energy demand.
This paper aims at x-raying the design analysis and parametric modeling of harmonics effects on a... more This paper aims at x-raying the design analysis and parametric modeling of harmonics effects on a 1.5KVA single phase wooden cross cutting machine step down electric service transformer. The literature survey was considered and the research work was realised through analytical designs and parametric modeling of harmonics effects on a single phase, core type electric service transformer which steps down the 240volts mains voltage to the appropriate voltage level of 120volts. The electric service transformer has efficiency of 96.02% with maximum load efficiency of 42.69%, and 5.07% of total losses in the system. This research work will be relevant to transformer designers and students, as it exposes the full design analysis and calculations of transformers; and its basic parametric models.
Journal of Advances in Science and Engineering, 2019
This paper examines the political economy of transforming indigenous technology in Nigeria throug... more This paper examines the political economy of transforming indigenous technology in Nigeria through suitable engineering and technological development. The existing state of position of the indigenous technology with respect to its problems as it affects socio-economic growth, good governance and technological advancement were looked into. After in-depth evaluation, it was mirrored that there were some obstacles in the transformation of the nation’s indigenous technology to meet global standards. Therefore, this paper proposes the 3-I (imitation, improvement and innovation) technological advancement model as the way forward to start spiral process model of technological innovation that will aid the transformation of the indigenous technology to stimulate political-economic and technological advancement of the country. Economic growth will go side by side with technological advancement and national social security but the government is an indispensable entity in the developmental proc...
International Journal of Research in Engineering and Technology, 2018
The aim of demand-side management (DSM) in the electric power distribution network is to manage c... more The aim of demand-side management (DSM) in the electric power distribution network is to manage congested systems and balance supply-demand at operating conditions thereby reducing systems losses, system reliability improvement and voltage stability. For the past fourteen (14) years, researchers have proposed various methodologies that include artificial intelligentbased techniques to implement DSM in the distribution network. This paper x-ray a comprehensive bibliographical study and general backgrounds of researches and developments in the areas of demand-side management (DSM) and optimization using modern heuristic tools in over thirty (30) published articles that were evaluated. The advantage of this comprehensive evaluation is to provide a reference point for educational development on the recently published articles in the areas of DSM and to stimulate research interest.
Validation of Grid Formulas Using a Scaled Model of Earthing Grid System
British Journal of Applied Science & Technology, 2015
The main objective of a safe grounding design is to carry current into earth under normal and fau... more The main objective of a safe grounding design is to carry current into earth under normal and fault conditions without exceeding operating and equipment limits or adversely affecting continuity of service, also, to ensure that personnel within the vicinity of the grounding facilities are not exposed to the danger of electric shock. To attain these objectives, accurate determination of grid resistance is of paramount. This paper presents the comparison between grid formulas (analytical methods) used to calculate grounding resistance and experimental measurement. Also, variation of grid resistance with number of meshes was also examined.
Journal of Advances in Science and Engineering, 2019
The issue of erratic and epileptic power supply in Nigeria Electricity Company is as old as the c... more The issue of erratic and epileptic power supply in Nigeria Electricity Company is as old as the country itself. This is not unconnected to some factors such as: inadequate power generated in the national grid, electric power losses in the distribution network, government instability and unstable power reform policies, to mention but a few. The effects of erratic and epileptic power supply have been a major challenge to every sector in Nigeria especially the telecommunication industry. The telecommunication industry plays a significant role in the growth and development of every nation. Hence, this paper aims at critically investigating the causes and effects of erratic and epileptic electric power supply in Nigerian telecommunication industry. More so, the paper suggested and recommended ways to curb and enhance the current erratic and epileptic power situation in the country in order to boost the productivity of telecommunication industry and other sectors as well.
Parametric Design Analysis, Cost Optimization and Lifetime Estimation of a Three Phase, 300KVA Recycled Electric Distribution Transformer
ISSN: 2395-1303 http://www.ijetjournal.org Page 122 Parametric Design Analysis, Cost Optimization... more ISSN: 2395-1303 http://www.ijetjournal.org Page 122 Parametric Design Analysis, Cost Optimization and Lifetime Estimation of a Three Phase, 300KVA Recycled Electric Distribution Transformer 1 France O. Akpojedje, 2 Emmanuel C. Mormah, 3 Solomon, O. Idu , 4 Reuben Ishiekwene Department of Electrical/Electronic Engineering Technology, National Institute of Construction Technology (NICT), Uromi, Nigeria. Department of Electrical/ Electronic Engineering, Delta State Polytechnic, Ogwashi Uku, Nigeria. Delta State Local Government Service Commission, Asaba, Delta State, Nigeria.
The aim of reconfiguring the electric power distribution network under normal operating condition... more The aim of reconfiguring the electric power distribution network under normal operating conditions is to reduce the total active power losses of the network or to balance the load of the system’s feeders which is an important part of distribution network operation to improve system reliability and stability. However, the three objectives of the distribution engineers is power losses minimization, maintenance of good voltage profile and minimum feeders’ current levels. For the past forty two (42) years, researchers have proposed various methodologies that include pure heuristic and artificial intelligent-based methods. This paper examines a comprehensive bibliographical study and general backgrounds of researches and developments in the areas of network reconfiguration and optimization using artificial intelligent-based techniques inover sixty (60) published articles that were reviewed. The benefit of this comprehensive survey is to provide reference point for educational advancement...
Induction motor is a veritable machine in the industries today, since is the most widely used ele... more Induction motor is a veritable machine in the industries today, since is the most widely used electric motor in the industry. It offers a reasonable performance, manageable torque/speed characteristics and a better efficiency. The aim of this paper is to examine a comparative analysis of a three phase induction motor for performance evaluation. The computer simulation and experimental methods were used to carry out the investigations, validation and evaluation of the behavioural characteristics of the machine. The simulation and experimental results obtained were compared to validate the results obtained from the experimental method. It was shown that the results from the simulation and experimental methods were in agreement with the theoretical values of the three phase induction motor. Thus, the results indicated that the relative errors were negligible and the proposed simulation models accurately predict the equivalent circuit parameters of the induction motor.
NIPES Journal of Science and Technology Research, 2020
This paper investigates the frequent power cut on the 11kV feeders of Ugbowo 2x15MVA, 33/11kV ele... more This paper investigates the frequent power cut on the 11kV feeders of Ugbowo 2x15MVA, 33/11kV electric power distribution network. Annual data of daily power outages from August 2019 to July 2020 of the 11kV feeders were collated and collected from the Ugbowo distribution network. The daily outages of the 11kV feeders were used to compute the monthly and the yearly reliability indices of the feeders of the Ugbowo distribution network. Both the monthly and annual failure rates, MTTR, MTTF, MTBF, availability and unavailability were computed and analyzed using the Load Point Indices (LPI) and the Microsoft Excel was used for graphical interpretation in order to estimate the reliability indices and to determine the frequency of power outages of the network. Also, the Performance Indices (PI) of the system were evaluated for an in-depth assessment. The annual and monthly failure rates, mean time to repair, mean time to failure, mean time between failure, system average interruption frequency indices (SAIFI), system average interruption duration indices (SAIDI), average service availability index (ASAI), etc for a period of twelve ( ) months were analyzed. The computed results obtained from the analyses of the 11kV feeders of the distribution network showed that the power unavailability is very high for the period under study with Ugbowo 11kV feeder having the highest power unavailability of 76.52%, Eguaedaiken 11kV feeder 73.42%, FGGC 11kV feeder 69.50% and Uselu 11kV feeder 66.96% in the network. The annual failure rate results revealed that Ugbowo 11kV feeder has the highest failure rate of 46.52%, followed by Eguaedaiken feeder 44.83%, FGGC feeder 44.27% and Uselu feeder 41.60%. This is due to frequent power outages resulting from regimented load shedding (scheduled outages) being practice in the network as way to manage equipment limitations, poor energy management system, etc. and unscheduled (forced) outages due to faults in the network. Furthermore, the PI of the system revealed that the annual total outage duration (SAIDI), outage frequency (SAIFI) and percentage availability (ASAI) were 175.7504hours, 3.3780f/cu.yr and 97.99% which is a far cry from the international acceptable standard value (IASV) of 2.5 hours, 0.01 and 99.99% respectively which showed that the power supply services in the network is unreliable.
Journal of Advances in Science and Engineering, 2019
This paper x-rayed the transmission system and rural electrification scheme in Nigeria. The elect... more This paper x-rayed the transmission system and rural electrification scheme in Nigeria. The electric power transmission network and rural electrification scheme were critically reviewed in terms of issues, challenges, constraints, roles and current state of the power systems to identify their areas of strength and shortcomings in the Nigeria power sector. The paper further proposes the way forward to enhance the performance of the Nigeria’s electric power transmission system and rural electrification scheme.
Journal of Advances in Science and Engineering, 2019
This paper presents an excerpt of a more comprehensive survey of smart grid systems on electric p... more This paper presents an excerpt of a more comprehensive survey of smart grid systems on electric power distribution networks and its impact on reliability. The survey was carried out as part of the feasibility study in Nigeria to determine its enhance-ability on the smartness of a conventional (traditional) distribution network. A smart grid is not a single technology but multiplex technologies in which the combination of different areas of engineering, communication and energy management systems are done. Consequently, a comprehensive review of various approaches and their impact on reliability of the network is presented. Furthermore, this paper introduces the smart grid technology and its features, reliability impacts and emerging issues and challenges that arise from the smart grid system applications. The benefit of this comprehensive survey is to provide a reference point for educational advancement on the recently published articles in the areas of smart grid systems on electr...
Optimal Power Flow Control on Power System Transmission Network using UPFC
International Journal of Engineering Trends and Technology, 2016
The paper e x a m i n e s the performance of a unified power flow controller ( U P F C ) o n t h ... more The paper e x a m i n e s the performance of a unified power flow controller ( U P F C ) o n t h e e l e c t r i c p o w e r t r a n s m i s s i o n n e t w o r k . The UPFC performance was investigated in controlling the flow of power over the transmission lines. Voltage source model was utilized to study the behaviour of the UPFC in regulating the active power, reactive power, voltage profile of the system; and the UPFC was used to relief power congestion of the transmission system. The model employed was used to combined the equations of UPFC and the balance power equations of the network into one set of non-linear algebraic equations. Case studies were carried out on five standards bus network and the load flow option of the powergui block was used; the model was initialized with plant 1 and 2 generating 500MW and 1000MW respectively, with the simulation done in Matlab environment. The results of the network with and without UPFC were compared in terms of active and reactive power flows in the line, and the active and reactive power flows at the buses were used to analyzed the performance of the UPFC.
A Comprehensive Review of Nigeria Electric Power Transmission Issues and Rural Electrification Challenges
International Journal of Engineering Trends and Technology, 2016
This paper examines the Nigeria electric power transmission network, rural electrification scheme... more This paper examines the Nigeria electric power transmission network, rural electrification scheme, issues and challenges. The electric power transmission network and rural electrification scheme were reviewed to identify their areas of strength and shortcomings in the Nigeria power sector. The paper then further proposes the way forward to optimize the Nigeria electric transmission network and rural electrification scheme.
NIPES Journal of Science and Technology Research, 2020
This paper investigates the frequent power cut on the 11kV feeders of Ugbowo 2x15MVA, 33/11kV ele... more This paper investigates the frequent power cut on the 11kV feeders of Ugbowo 2x15MVA, 33/11kV electric power distribution network. Annual data of daily power outages from August 2019 to July 2020 of the 11kV feeders were collated and collected from the Ugbowo distribution network. The daily outages of the 11kV feeders were used to compute the monthly and the yearly reliability indices of the feeders of the Ugbowo distribution network. Both the monthly and annual failure rates, MTTR, MTTF, MTBF, availability and unavailability were computed and analyzed using the Load Point Indices (LPI) and the Microsoft Excel was used for graphical interpretation in order to estimate the reliability indices and to determine the frequency of power outages of the network. Also, the Performance Indices (PI) of the system were evaluated for an in-depth assessment. The annual and monthly failure rates, mean time to repair, mean time to failure, mean time between failure, system average interruption frequency indices (SAIFI), system average interruption duration indices (SAIDI), average service availability index (ASAI), etc for a period of twelve (12) months were analyzed. The computed results obtained from the analyses of the 11kV feeders of the distribution network showed that the power unavailability is very high for the period under study with Ugbowo 11kV feeder having the highest power unavailability of 76.52%, Eguaedaiken 11kV feeder 73.42%, FGGC 11kV feeder 69.50% and Uselu 11kV feeder 66.96% in the network. The annual failure rate results revealed that Ugbowo 11kV feeder has the highest failure rate of 46.52%, followed by Eguaedaiken feeder 44.83%, FGGC feeder 44.27% and Uselu feeder 41.60%. This is due to frequent power outages resulting from regimented load shedding (scheduled outages) being practice in the network as way to manage equipment limitations, poor energy management system, etc. and unscheduled (forced) outages due to faults in the network. Furthermore, the PI of the system revealed that the annual total outage duration (SAIDI), outage frequency (SAIFI) and percentage availability (ASAI) were 175.7504hours, 3.3780f/cu.yr and 97.99% which is a far cry from the international acceptable standard value (IASV) of 2.5 hours, 0.01 and 99.99% respectively which showed that the power supply services in the network is unreliable.
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Papers by Engr. France Akpojedje