Engineering

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Development of a Matlab Based Pattern Design System for Plain Textile ( Ankara)
(Bells University of technology, Ota, 2018-08-30) ELEGBEDE, Adedoyin Waheedat; Prof. O. L. Olopade
Textile designing involves producing patterns for cloth used in clothing, household textile (such as towels) and decorative textile such as carpets. In the past, numerous printing techniques have been employed in patterning textiles an they an accurate representing of design when utilized but designs produced by the conventional method are static and rigid. Hence, MATLAB was used in this work to enable dynamic designs to be created for a particular textile material. This work developed patterns for printing different textiles and creative innovation designs using mathematics to server as instrument for artistic. The process begins with providing a plain textile material. A mathematical expression which generates the pattern is required. The pattern generated is assessed to check if it meets the intended design as well as the color the user requires. A different mathematical expression is used if the initially generated does not meet the requirement of the of the user. The final printing on the textile is done after the patterns have been arranged and the process simulated using MATLAB 8.5 simulation tool. This work presented eight different patterns namely: circular pattern - which is a combination of three concentric circles; floral 1,floral 2, combination floral, and petal pattern- which shows different kinds of floral design combined together as well as with other shapes; helical pattern which is a spring-like pattern; a star and a spiral pattern; designed using different mathematical expressions. These pattern can then be arranged different to form different designs on textile materials. A dynamic pattern design system for plain has been development in this work. This system can be effectively deployed in textile industries.
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Exprimental Analysis of a Biogas System Using Wood Chips
(Bells University of Technology, 2019-03-19) ODESANYE-GEORGE, Thomas Kunle; Dr. Fakehinde O
The basic need of any household from day to day, for survival is energy. Every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not easily achieved because of the inefficiency or epileptic service by various energy agencies. In our society and neighbourhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy because of the cost of the fossils fuels, climate change problem, ozone layer depletion and greenhouse effect. The aim of the thesis is to produce synthetic biogas\natural gas , using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with the gas. The materials for this experimental production are, wood chips, modified fluidized bed, Arduino microprocessors, k-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place, usually between 400Oc and 800Oc, A graph of various temperatures reading taken against the energy content of the gas the (Mcpdt) enthalpy was taken.
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Experimental Analysis of a Biogas System Using Wood Chips.
(Bells University of Technology, 2019-04-27) ODESANYA-GEORGE, Thomas Kunle; Dr. Fakehinde O
The basic needs of any household from dad to day, for survival is energy. Every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not easily achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighborhood today, poop people must go far into the bush to gather wood& sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the world are making research into renewable energy because of the cost of the fossils fuels, climate change problem, ozone layer depletion and greenhouse effect. The aim of the thesis is to produce synthetic biogas\Natural gas, using gasification method. An household can use it for cooking and power generation, by running power generating plant with the gas. The materials for this experimental production are, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of the gas takes place, usually between 400oC and 800oC, A graph of various temperatures reading taken against the energy content of the gas the (Mcpdt) enthalpy was taken. It was found the graphs were in most cases straight line but decline occurs above 800c. A simulation carried out confirms this result.
Metadata only
Experimental Analysis of a Biogas System Using Wood Chips
(Bells University of Technology, 2019-04-27) OBASANYA-GEORGE Thomas Kunle; Dr . Fakehinde O
The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighborhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and greenhouse effect. The aim of the thesis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with they gas. The materials for this experimental production are, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighborhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and greenhouse effect. The aim of the thesis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with they gas. The materials for this experimental production are, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighborhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and greenhouse effect. The aim of the thesis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with they gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 oC and 800oC , a graph of various temperature reading taken against the energy content of the gas the (Mcpdt) enthalpy was taken . It was found that the graphs were in most cases straight line but decline occurs above 800oC . A stimulation carried out confirms this result . Biomass exists free in nature and result of the decomposed wood and other waste materials and can be processed into biogas . It can also be found where crude oil is processed . The thesis is about –synthetic biogas from woodchip oxygen from air and steam to generate methane can be used for cooking and generation of electric power. The model adopted here is The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighbourhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and geenhouse effect. The aim of the theists is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with thev gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighborhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and greenhouse effect. The aim of the thesis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with they gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighbourhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and geenhouse effect. The aim of the theisis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with thev gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 oC and 800oC , a graph of various temperature reading taken against the energy content of the gas the (Mcpdt) enthalpy was taken . It was found that the graphs were in most cases straight line but decline occurs above 800oC . A stimulation carried out confirms this result . Biomass exists free in nature and result of the decomposed wood and other waste materials and can be processed into biogas . It can also be found where crude oil is processed . The thesis is about –synthetic biogas from woodchip oxygen from air and steam to generate methane can be used for cooking and generation of electric power. The model adopted here is from the steady flow ( inflow and outflow phenomenal. The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the ineffciency or epileptic service by our vairious energy agencies. In our society and neighbourhood today, poor people must go far into the bush to gather wood & sticks for the purpose of coooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and geenhouse effect. The aim of the theisis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with thev gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 The basic of any household from day to day, for surviuval is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our vairious energy agencies. In our society and neighbourhood today, poor people must go far into the bush to gather wood & sticks for the purpose of coooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and greenhouse effect. The aim of the theisis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with they gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 The basic of any household from day to day, for survival is energy. every household needs energy for cooking, lighting, comfort and entertainment. This needed energy is not achieved because of the inefficiency or epileptic service by our various energy agencies. In our society and neighbourhood today, poor people must go far into the bush to gather wood & sticks for the purpose of cooking. However, this does not come easily without hardship. In order to proffer solution to this enigmatic problem, an alternative energy source has been considered, a renewable energy is a solution proffered. Nations all over the word are making research into renewable energy because of the cost of the fossils fuels, climate change problem , ozone layer depletion and geenhouse effect. The aim of the theisis is to produce synthetic biogas\ Natural gas, using fluidized gasification method. An household can use it for cooking and power generation, by running power generating plant with thev gas. The materials for this experimental production atre, wood chips, modified fluidized bed, Arduino microprocessor, K-type thermocouple temperature sensor. Reading of the temperature at which cracking of gas takes place , usually between 400 oC and 800oC , a graph of various temperature reading taken against the energy content of the gas the (Mcpdt) enthalpy was taken . It was found that the graphs were in most cases straight line but decline occurs above 800oC . A stimulation carried out confirms this result . Biomass exists free in nature and result of the decomposed wood and other waste materials and can be processed into biogas . It can also be found where crude oil is processed . The thesis is about –synthetic biogas from woodchip oxygen from air and steam to generate methane can be used for cooking and generation of electric power. The model adopted here is from the steady flow ( inflow and outflow phenomenal.
Metadata only
Design of a Proportional Integral Derivative Based Level Controller of a Blending Tank in Cement Plant
(Bells University of Technology, 2020-06-03) AINA, Oluwatosin Adeola; Dr. A. O. Amole
Rotary klin is the heart of the cement plant, and consistent feeding of material into it is key to achieving excellent performance in terms of equipment reliability and profitability. one of the significant ways to accomplish this is by using an appropriate PID Controller to control the level of the material in the klin feed blending tank. The use of PID controller has been severally applied tom the control of the level. However, the major challenges has to do with high overshoot and steady-state error, prolong settling time .and slow response of the controller, which practically will cause wastages and equipment downtime. Thus, this research focused on using PID controllers turned by Zigler-Nichols (ZN), Chien-Hrones-Reswick (CHR), and Cohen -Coon (CC) tuning technique to achieve optimum performance of the level control. The level of the blending tank was modeled based on the mass balance principle. The control schemes were simulated in MATLAB/SIMULINK version 9.7.01190202(R2013b), and the performance of each tuning technique was evaluated using the rise time, settling time, peak amplitude, and overshoot. The results revealed that ZN tuned PID controller resulted in the lowest rise time (2.11s), settling time of 14secs, and peak amplitude of 1.04 while both CHR and CC PID achieved the lowest overshoot of 0%.
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Voltage Profile Enhancement on the Nigerian 330-KV Grid Using Series -Shunt Reactive Power Compensation Technique.
(Bells University of Technology, Ota., 2020-06-10) SALAMI, Hamed Temitope; Prof. R. L. Salawu
The Nigeria 330 kv power systems is characterized with major constraint such as low voltage profile and power loses resulting to negative effects on power generation and transmission systems. The aim of this study is to enhance the Nigeria 330-kv grid voltage profile using combined series and shunt compensation for enhancing the operation of the system. The load flow study using Newton -Raphson -based method was carried out to analyze the steady state operation of the system for the base case ,as this method convergence faster and its simplicity attribute as compared to their solution methods . The series compensation was incorporated, followed by the shunt compensation and then combined series and shunt compensation were incorporated inro system in sequential order. Capacitor Banks sizing was analyzed and adequate placed at the affected buses to inject more reactive power necessary to increase the voltage profile of the affected lines. MATLAB/SIMULINK software was used to carry out the simulation analysis
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Modelling and Simulstion of Internatuional Traveller's Check-In Process in Nigeria Airports using Apena Software and Simpy Simulation Tools
(Bells University of Technology, 2020-08-06) OBETTA, James larry; Engr. Dr O. O. Olusanya
Application of queuing theory to airport check-in problem is required to analyze the airport passenger flow process with respect to the service rendered to passengers during check-in process. This is necessary following the increasing demand for airport and airline services amidst limited facilities and dwindling number of trained personnel in most of the airports in the. This imbalance in demand and supply of facilities and services results in prolonged delays for all stakeholders (airports, airlines and passengers); which has the effect of impacting negatively negatively on ser vice performance, cost of operations, customers satisfaction, and overall throughput. Obviously, there is a cost attached to delay in any system irrespective of the cause of the delay. HENCE, this research is to model and simulation travelers' check -in process at the "D Wing of the Departure Hall of Murtala Muhammed International Airport, Ikeja, in year 2020. This research was carried out by determine the parameters of the queues at every services point in the check-in process, which were subjected to simulation runs, using Simpy simulation software, a framework based on standard Python. First, the check-in activities of the section were physically observed for five flights during which primary data were collected through direct observation.
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Development of Dual-Band E-Patch Microstrip Antenna Using Perturbation and Full-Wave Matching for Wireless Local Area Network Application
(Bells University of Technology, 2021-08-12) ALFRED-ABAM, Fubara Edmund; Prof. R.I Salawu
Transmission and reception of signals are associated with antennas which are transducers for either radiating or receiving Electromagnetic (EM) waves. However, a single Microstrip Patch Antenna (MS) exhibits inherent narrow impedance bandwidth which restricts faster communication throughput. This study aimed at developing a dual-band E-patch microstrip antenna using perturbation and full-wave matching for Wireless Local Area Network (WLAN) application. It examined how the antenna design targets the center operating frequencies of 2.4 GHz and 5.8 GHz for possible range and speed. The transmission line and the full-wave models were employed to analyze the patch antenna and attain the associated input impedance Driving Point Function (DPF) for matching characteristics. This approach was used to quantify the reduction in reflections for improved Radio Frequency (RF) network output. Also, the antenna impedance bandwidth was then compared for the simulated and the fabricated models based on the reflection coefficient. The dimension of the antenna width and length was 31 mm by 25 mm, in which rectangular slots were etched on the patch surface with the possibility of varying the designed slots and feed to attain optimal performance. A 1.5 mm thick Fiber Reinforced Epoxy Flame Retardant 4 (FR4) substrate, with a loss tangent of 0.02 was terminated with a subminiature version A (SMA) connector and a 50 S coaxial cable. A parametric analysis was carried out by using an Advanced Design System (ADS) full-wave simulation tool, on the other hand, the fabricated antenna was tested using a Vector Network Analyzer (VNA) based on Voltage Standing Wave Ratio (VSWR), bandwidth, and return loss (Si) performance indices. The results showed that the antenna Si, at the resonating frequencies were - 40 dB and - 35 dB for the simulated lower and higher bands, respectively while the corresponding values obtained for the fabricated model were - 36 dB and - 31 dB. This represents the desired value of the reflected signal based on IBEE Std. 149, having an associated VSWR of less than 2. The obtained EM radiation and antenna efficiencies were 97% and 94%, respectively which justify a properly matched antenna. The results further revealed an impedance bandwidth of 31% and a nearly omnidirectional radiation pattern with a peak directivity and gain of 7.4 dBi and 3 Bi demonstrating a satisfactory radiation property. The lower resonant frequency of the design was 2.4 GHz with a bandwidth of 120 MHz, ranging from 2.35 GHz to 2.47 GHz, while the higher resonant frequency was 5.8 GHz with a bandwidth of 260 MHz ranging from 5.63 GHz to 5.89 GHz signifying a wideband feature. The significance of the E-patch antenna design is that it can contribute to a simultaneous dual-broadband radiation mode useful for high-performance wireless communication with less noise interference, having a forward compatibility with recent Wireless Local Area Network (WLAN) technology.
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A Comparative Analysis of Mathematical and Machine Learning Based Models for Predictive Maintenance in a Production Line.
(Bells University of Technology, Ota., 2022) AINA, Yusuf Amuda; Dr. Mrs. Olamide O. Olusanya
Maintenance is an activity to ensure that production line equipment are in satisfactory condition and reliable. Thus, the optimum goal of maintenance is to ensure that the performance of the equipment is satisfactory by minimizing downtime and reducing cost related to downtime. The complexity of production line has changed the tradition decision- making process regarding maintenance management through the4 use of artificial intelligent based predictive maintenance in order to make more efficient real-life decision. This study developed a mathematical and machine learning predictive maintenance models using production line parameters to predict machine failure. Fit retrogression model was used as the mathematical model and adaptive neuro fuzzy inference system (ANFIS based) was used as the adopted machine learning model. Data obtained from the production line revealed that the fault is subject to production line parameters such as main pressure, operating voltage, current consumption, vibration and temperature. Performing statistical analysis revealed the adequacy of the models with coefficient of determination (R2) of 83.99% for number of faults. Training of datasets with ANFIS revealed a convergence at epoch number of 3, and with minimum root mean square error (RMSE) of approximately zero (0.000161), indicating the significant training approach of the ANFIS training of the dataset. Evaluation of the two models (mathematical and machine learning) showed they give better prediction of the number of faults, as their predicting values were closer to that obtained from the equipment. Comparatively, machine learning (ANFIS based model) showed better predicting strength compared to the mathematical model. This is because ANFIS adopts the learning and performing system of artificial neural network (ANN) and fuzzy logic.
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Digitization of Energy Production and Consumption in Beverage Industry
(Bells University of Technology, 2022-05-12) ALAWODE, Jeremiah Olakunle; Dr.Mrs. Olamide O.Olusanya
Energy is a major driving force of industrial operations. Virtually nothing can be done without consumption of one or more types of energy or conversion from one form to another by the general law of conversation of energy. Quantifying these energies and accurately costing same has been a major concern as only a rough estimated values are usually assumed. In this research work, digitization of steam energy production and consumption in beverage industry were focused on. In the methodology adopted, flow meters identification and compatibility for energy digitization was ascertained. Initial setup of the flow meter was carried outland each flow meter wired using the digital input terminals selected for the plus input signals. This is responsible for the totalizer value (initially being collected manually and locally from each flow meters). Secondly, the identified pulse input for each flow meter was programmed in the PLC using the ladder logic programming language. This involves creating a unique tag name to identify the flow meter, as well as programming the continuous routine responsible for totalizing the flow per pulse during each flow measurement cycle. Afterwards, the connectivity configurations of each flow meter tags in the server were carried out, the OPC\OLE path is configured to ensure that data from the flow meter through the PLC gets to the digitization server. Finally, the manually obtained data from flow meter is compared with the digitized data from the server. The digital manufacturing operation(DMO)server results and the ones manually collected are compared and analyzed using the SPSS software tool for data analysis . In conclusion, the results show that Digitization of energy production and consumption in Beverage industry' is a practicable solution to solve energy measurement problems in any establishment. This solution can also be extended to other energy utilities such as water, PMS, diesel, gas, and electricity
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Reliability Assessment of Power Distribution Sytem Case Study of Agbowo 11kV Substation
(Bells University of Technology, 2022-05-12) OKAGA, Ezekiel Oluseyi; Dr D.O. Akinyele
Distribution network form a non-negotiable link in the hierarchical structure of conventional power sytem, it is the arm of power systems through which customers' demand for energy is met. However, the ability of the power system to meet or balance the customers' load demand results in outages and load shedding, which raises a question of system reliability. It is therefore paramount to identify the system components that are susceptible to failure in the power system to ascertain those components that can occasion loss of supply to customer . The ism of this study is to evaluate the reliablity of a secondary distribution system using Agbowo 11 KV feeder as a case study
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Modelling and Simulation Of A Remote Based Maintenance System, For A Reactor In A Chemical Laboratory Of A Beverage Industry
(Bells University of Technology, 2022-05-12) IMONIGIE, Yussuf Ameen; Dr. Olamide O. Olusanya
This dissertation has clearly studied Modelling and Simulation of A Remote Based Maintenance System for a reactor in a chemical laboratory of a manufacturing industry a case study Nestle plc using internet of things (IOT). Here, the considered equipment is the Reactor. i.e Continuous Stirred Tank Reactor (CSTR), as shown in figure 9 and 10, is a computer controlled, and designed to demonstrate the behaviour of a reactor used for homogeneous reactions liquid (production of ethanol) used in production or institutions.It was considered due to inevitable deterioration and need for maintenance of system. WIth temperature as the process variable
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Reliability Assessment of 11KV Power Distribution Sytem
(Bells University of Technology, 2022-05-12) OKPO, Mba Mazwell; Dr. Olamide O. Olusanya
The electricity value chain of our country is plague with a lot of problems which has a negative impact on the reliability of the power system. Faults has been idenitified as one of the major problems affecting the reliability of the power supply. Each time there is a power interruption, there is always an energy loss which disrupt processes of the end-users resulting to economic waste especially for industrial users. This study aims at assessing the reliability of 11KV of a KV power distribution system, the two approaches used were fault classification and category. analysis using tripping frequency and reliability analysis using CAIFI, CAIDI, SAIFI, SAIDI. March and August for year 2020 and 2021. The data for 2020 were collected and analyzed. The results of the analysis was used to develop reliability techniques which was implemented on the system in the year 2021
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A Comparative Analysis of Mathematical and Machine Learning Based Models for Predictive Maintenance in a Production Line
(Bells University of technology, Ota, 2022-08-10) AINA, Yusuf Amuda; Dr. B. A. Bello
Maintenance is an activity to ensure that production line equipment are in satisfactory condition and reliable. Thus, the optimum goal of maintenance is to ensure that the performance of the equipment is satisfactory by minimizing downtime and reducing cost related to downtime. The complexity of production line has changed the tradition decision- making process regarding maintenance management through the use of artificial intelligent based predictive maintenance in order to make more efficient real-life decision. This study developed a mathematical and machine learning predictive maintenance models using production line parameters to predict machine failure. Fit retrogression model was used as the mathematical model and Adaptive Neuro Fuzzy inference system (ANFIS based) was used as the adopted machine learning model. Data obtained from the production line revealed that the fault is subject to production line parameters such as main pressure, operating voltage, current consumption, vibration and temperature. Performing statistical analysis revealed the adequacy of the models with coefficient of determination (R2) of 83.99% for number of fault. Training of datasets with ANFIS revealed a convergence at epoch number of 3, and with minimum root mean square error (RMSE) of approximately zero (0.000161), indicating the significant training approach of the ANFIS training of the dataset. Evaluation of the two models (mathematical and machine learning) showed they give better prediction of the number of faults, as their predicting values were closerU to that obtained from the equipment . Comparatively, machine learning (ANFIS based model) showed better predicting strength compared to the mathematical model. This is because ANFIS adopts the learning and performing system of artificial neural network (ANN) and fuzzy logic.
Metadata only
Design and Performance Analysis of Solar/Biodiesel Based Microgrid System for Isolated Communities
(Bells University of Technology, Ota, 2023-05-16) ADESHINA Olatunbosun Adeonipekun; Dr D.O. Akinyele
The problem of erratic supply from and the lack of access to the national grid has attracted a growing interests in renewable energy-based systems for addressing the energy shortage issue.This study then focuses on the design and performance analysis of solar/bio diesel micro grid for isolated communities. It uses the Hybrid Optimization Model for Electric Renewables (HOMER) Pro Microgrid software to determine the PV array, battery, inverter and the biodiesel generator sizes required to support the isolated house demand of 89.55 kWh/day.
Open Access
Mechanical and Structural Investigation of Zn-MnO2 Coating on Mildsteel
(Scientific Net, 2024-11-01) DEREK Alima O.; FAYOMI Ojo S.I.; ATIBA Joshua O.
Abstract: Failure in manufacturing industries is a worldwide concern and it occurs most often at elevated temperatures and pressure. Acid, gases, and steam are known to be corrosion and stress-induced propagators resulting in incessant catastrophes. More so, material failure can be due to the substrate material used in the coating while substrate failure can further be classified into the substrate morphology, surface chemistry as well as contamination. Thus, the study developed a multifaceted layer of zinc barrier coating via the electrodeposition technique and observe its response by characterizing the developed coating. The mild steel plate, Zn and MnO2 were procured and characterized according to the ASTM standard. Mild steel of dimension 60×30×2 mm was sectioned and polished using varying sizes of abrasives. The result of the coating thickness showed that Zn-6MnO2 had a weight gain of 0.30g. Zn-12MnO2 was observed to have excellent corrosion performance compared to the as-received and the other formulations of Zn-MnO2 with a corrosion resistance of 2.117 mm/year. The SEM image of Zn-MnO2 showed aggregates of clustered grains, thus, no possible fracture lines were observed on the coating surface. Zn-12MnO2 exhibited a hardness value of 252.72 BHN. Additionally, the EDS of the coatings revealed significant elements that helped in the corrosion performance and hardness properties of the coatings.
Open Access
Corrosion and Surface Modification of Hybridized Seashell Composite on AA6063 Alloy for Advance Application
(Asian Journal of Chemistry, 2025-08-30) FAYOMI Ojo S.I.; AJIBOLA Otitolaye A.; MIN Ho Soon; OLUWASEGUN Kunle M.
Abstract This study focuses on utilizing abundantly available seashell ash by dispersing it in AA6063 alloy to form composites. A new aluminium metal matrix composite was developed by reinforcing AA 6063 alloy with particles of seashell ash as reinforcement materials in varying percentages (0, 10, 20, 30, 40 wt.%). The samples were prepared by using the stir casting method. The microstructural characterizations were carried out using optical microscopy and the scanning electron microscope (SEM), revealing particle shape and size descriptions for the composite microstructural features. The results indicate that the composite materials exhibit relatively larger and more uniformly distributed grain sizes compared to the base material. The outcomes demonstrate a significant improvement in the tensile strength and hardness of the composites, accompanied by a decrease in corrosion rates. The best samples display a 90.95% increase in tensile strength, a 38.01% increase in hardness and a 71.5% decrease in corrosion rate in an HCl environment, along with a 46.7% decrease in a NaCl environment. Furthermore, there is a 207.7% increase in impact strength in the sample reinforced with 20 wt.% of seashell ash. Overall, the AA-SS composite with 20% wt. seashell ash exhibits the most favourable properties, featuring a 90.95% increase in tensile strength, a 38.01% increase in hardness and a lower corrosion rate when compared to the control sample.

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