ADEFEMI ADEODU - Academia.edu (original) (raw)

Papers by ADEFEMI ADEODU

2020 International SAUPEC/RobMech/PRASA Conference, 2020

This work is in line with the quest for improved energy generation by developing nations. A 12 kW... more This work is in line with the quest for improved energy generation by developing nations. A 12 kW capacity gasification system, which uses wood chips to produce combustible gas for the generation of electrical energy for domestic and experimental purposes, was developed. The materials employed for its development include; metal bolts/nuts, metal pipes, propane tank, open-ended cylinders, ball/check valves, a dc fan motor with a regulator, metal chain, rechargeable battery, metal caps and metal bowl. The design and finite element analysis of the gasifier was carried out using the Solidworks software 2018 version and fabricated using galvanized steel due to its high resistance to corrosion. A 12 V DC fan motor was incorporated into the system for the creation of air suction. The machining processes involved in the fabrication include; brazing, welding, cutting, polishing as well as painting. The performance evaluation of the gasifier system carried out with some wood chips which was continuously mixed in the gasifier chamber for 9 hours and the resulting tar content was obtained within the time interval. The results obtained show the interaction between temperature, time and height of the hopper. The analysis of the results obtained also show that wood is a suitable material for the production of producer gas. In addition, the gasification system can be used to meet some domestic and electrical energy requirements. The work has been able to lay a foundation for the production of combustible gas using a gasifier chamber.

Engineering and technology is key to sustainable development. It has become imperative for third ... more Engineering and technology is key to sustainable development. It has become imperative for third world yearning for sustainability and economic prosperity to build indigenous capacity as a driving force for technological breakthrough in vital sectors. In this work, key sectors such as energy, power, infrastructure, agriculture, manufacturing, ICT etc. that plays pivotal role in enhancing sustainability were examined with their impact or otherwise on sustainable development. Also, the road to sustainability demands deviations from conventional source of energy and transition to renewable sources so as to reduce the threat of fast depletion of fossil fuel as well as minimizing safety, economic and environmental challenges associated with fossil fuel. This work also examines detailed design of large scale biodiesel processing plant and the prospects of biodiesel as a green and safe alternative source of energy for powering diesel engines. Biodiesel a clean burning alternative to fossil...

2021 World Engineering Education Forum/Global Engineering Deans Council (WEEF/GEDC), 2021

A caustic potash processor capable of processing 30, 000 tons of caustic potash per anum from coc... more A caustic potash processor capable of processing 30, 000 tons of caustic potash per anum from cocoa pod husk was designed. It essentially consist of storage tank, fluidized bed dryer, rotary dryer operating at a temperature of 110 0 C for drying the feed, roll crusher which reduces the husks into smaller sizes and a furnace operated an elevated temperature to ensure proper ashing. The processor also consists of a reactor where leaching: the major process involved in the production of caustic potash from cocoa pod husk takes place. The reactor is lagged and heated internally after which an evaporator fired by a boiler is employed to concentrate the KOH solution. The water vapour leaving the evaporator condenses in the condenser and is recycled to the boiler. A detailed energy and material balance as well as analysis of process control system and instrumentation was also carried out to keep process variable within known safe operating limits in order to achieve the designed production...

Modeling of composite curing process is required prior to composite production as this would help... more Modeling of composite curing process is required prior to composite production as this would help in establishing correct production parameters thereby eliminating costly trial and error runs. Determining curing profile temperatures from experiment is a huge challenge which in itself is like re-inventing the wheel of trial and error, when mathematical models of physical, chemical and kinetic properties of the constituent materials could be used in modeling the cure situation to some degree of trust. This work has modeled two types of polymer based composite materials (Aluminum filled polyester and carbon-black filled polyester) representing polymer-metal and polymer-organic composites in order to predict the possible trends during microwave heating with regards to effect of heating rate on degree of cure of the composites. The numerical models were constructed by taking into account the heat transferred by electromagnetic energy through the resin/filler mixture, as well as kinetic h...

Procedia Manufacturing, 2020

A mathematical model for pseudo one component adsorption on a fixed bed is developed. The model t... more A mathematical model for pseudo one component adsorption on a fixed bed is developed. The model takes into account of external and internal mass transfer resistances with non ideal plug flow behaviour. In the present study, the Langmuir equilibrium isotherm is used to represent liquid-solid equilibrium relationship. The model consists of a set of couple partial differential equations, and the differential equations representing the mass balances of both fluid and pore phases are solved by the implicit backward Euler finite difference method and compared with previous models reported in literature. The effects of various important and influencing parameters such as flow rate, particle radius and bed porosity in breakthrough curve are studied in detail. Hence, the proposed model is suitable and applicable to study the fixed bed adsorption column performance under isothermal condition.

Purpose: The aim of this research is to study selected cyber cafe workstations to establish the c... more Purpose: The aim of this research is to study selected cyber cafe workstations to establish the current practices with reference to acoustic parameters. Also to re-design the work station, if necessary, in order to improve productivity, health safety and comfort of the operators in the work station. Design/Methodology/Approach: Optimising the acoustic design of the work stations can be a complex task because of the number of design parameters that must be considered. This problem has been made much easier by designing for the permissible acoustic limit. Because of the nature of the selected work station, Nomograph estimation method was used. Finally Doppler Effect was used to calculate the permissible acoustic distances between the sources of noise and operators in the work station. Finding: The work station have been examined under the combination of different acoustic parameters. The analysis of the results indicates some deficiencies in the design of the workstation based on the ...

Journal of Emerging Trends in Engineering and Applied Sciences, 2013

Correlation of vapour-liquid equilibrium data for hydrocarbon ternary system (ethane-n-pentane-n-... more Correlation of vapour-liquid equilibrium data for hydrocarbon ternary system (ethane-n-pentane-n-heptane) is very useful in the design decision of separation process equipment such as separation columns, extractors etc. The tool used for the correlation is MATLAB: a very reliable software with adequate neural network conditions such as multi-layer feed forward, back propagation etc. A comprehensive Artificial Neural Network (A N N) training and simulation model and list of pre-existing vapour-liquid equilibrium data for ethane-n-pentane-n-heptane system was employed for this work. Neural network was trained in MATLAB 7.10.0 environment. Several iterations were carried out on the ternary system until the performance goal was met. From the analysis of the output result, regression and iteration graphs when compared with experimental data, artificial neural network offered very small deviation from the target. This confirms conclusively that artificial neural network is a consistent an...

Engineering and technology is cardinal to sustainable development. It’s very peremptory for any d... more Engineering and technology is cardinal to sustainable development. It’s very peremptory for any developing nation yearning for sustainability and thriving economy to build indigenous capacity as a driving force for technological breakthrough in major sectors. In a developing country like Nigeria, having the largest population in Africa and agriculture as one of the sources of income to nearly 60 % of the total population, post-harvest and storage loss is a major dilemma, which needs to be looked into in due diligence. The major challenge of total dependant on fossil fuel resources by these technologies, which are depleting very fast and wise use of these precious resources are preferred for long-term energy sustainability. This paper presents a development of lowcost hybrid solar dryer for food preservation with the objectives of estimating the percentage moisture uptake at the end of the drying process. Different levels of drying were reviewed up to the use of solar drying technolo...

The aim of this research is to study selected health care workstations to establish the current p... more The aim of this research is to study selected health care workstations to establish the current practices with reference to the use of anthropometry. Also to re-design the work station, if necessary, in order to improve productivity, health safety and comfort of the patients and staffs using the work stations. Anthropometric dimensions of the patients in the examined health care system were used to design intensive care unit bed (ICU) and medical/surgical bed which can accommodate 5% 95% of patients male and female. The work stations were examined and analyzed under the combination of different anthropometric parameters. The analysis of the results indicates some deficiencies in the design of the workstations based on the design parameters and standard values from the literatures. Based on the analysis of these results the patients and their care givers may likely be exposed to back pain, fatigue, poor blood circulation and other related diseases. For demonstration of the applicatio...

The need for an efficient welding process which is fast, safe, cost-effective and will produce a ... more The need for an efficient welding process which is fast, safe, cost-effective and will produce a welded structure that combines high strength with integrity during railcar manufacturing is necessary due to the increasing demand and complexity of the manufacturing process. In this study, the Taguchi method and response surface methodology (RSM) were used for the numerical experimentation design of a railcar bogie frame. The modelling and simulation of the railcar bogie frame was conducted using the Commercial Abaqus software 2018. Using the Taguchi method, the designed experiment consists of an orthogonal array of four factors varied over three levels with the welding parameters in the following ranges: voltage (22–25 V), current (200–250 A), speed (0.01 m/s) and arc length (0.03–0.07 m) as input variables. The matrix generated nine experimental runs whose weld distortions were determined via the physical experimentations. Also, the RSM was used to study the cross effect of the input...

Procedia Manufacturing, 2020

Abstract Artificial Intelligence (AI) through robotic system offer solutions to the quest for aut... more Abstract Artificial Intelligence (AI) through robotic system offer solutions to the quest for autonomous system with high cutting efficiency for lawn mowing. This work discusses the design, fabrication as well as the performance evaluation of a prototype robot for lawn mowing. The Auto-desk Inventor 2018 was used for the computer aided design and simulation of the automatic lawn mower. The electrical circuit connections between the microcontroller and the rest of the electrical systems was also designed with the aim of producing a system that can cut grass at high efficiency with little or no human intervention. The machine was incorporated with GPS, cameras, infrared and ultrasonic sensors for the detection and avoidance of obstacles. The control systems comprises of the Arduino micro-controller which controls the two geared motors alternatively in order to control the direction of the lawn mower. This is done according to the readings from the sensors governed by the C-programmed instructions fed into the micro- controller. The fabrication of the robot was done with the combination of machining and assembly operations in the machine shop and the results obtained from the performance evaluation indicated that the developed robot can autonomously avoid obstacles, make 180 degree turn and cut a lawn to an even height at high efficiency. Hence, this work provides a self-governing lawn mower that can cut grass at high efficiency and avoid obstacles thus minimizing human drudgery.

Procedia CIRP, 2020

Abstract Cavitation is the phenomenon whereby the air bubbles implode on the impeller due to insu... more Abstract Cavitation is the phenomenon whereby the air bubbles implode on the impeller due to insufficient suction pressure at the inlet section thereby causing noise, vibration and in a long-term, corrosion of the impeller blades. However, the current devices and technologies used to address cavitation are inefficient. The use of intelligence gathered from telemetry data produced via cloud computing and IOT is becoming prevalent in the prediction and control of cavitation. The objective of this research is to simulate cavitation in industrial pumps using the IOT technology. Cavitation was simulated in both good and faulty centrifugal pumps using the Fast Fourier Transform Algorithm (FFT) integrated to an Arduino microcontroller. Subsequently, configuration of the sensors required to capture the data, ingestion into the cloud and numerical analysis of the data were executed using the Artificial Neural Network (ANN) as the machine learning algorithm. The results showed graphs as well as the tables of non-cavitation and cavitation patterns when the ball valve was fully opened (90o) respectively, at the suction of the centrifugal pump. For the non-cavitation patterns, the voltages lie from 0.5-0.75v and for the cavitation patterns, the voltages lie from 0.76-0.95v. Using this technique, the detection, analysis and accurate prediction of cavitation were established.

Procedia CIRP, 2020

Abstract The right combination of the process parameters that will bring about effective milling ... more Abstract The right combination of the process parameters that will bring about effective milling operation of titanium alloy (Ti6Al4V) is a critical decision which requires scientific basis for its justification. In this work, the Taguchi method involving four factors and three levels was employed for the process optimization during the milling operation of Ti6Al4V. The physical experiments were performed using the DMU80monoBLOCK Deckel Maho 5-axis CNC milling while a stationary dynamometer (KISTLER 9257A 8-Channel Summation of Type 5001A Multichannel Amplifier) was employed for data acquisition in real time. The range of the process parameters employed include: cutting speed (250000-270000 mm/min), feed per tooth (0.02-0.05 mm), axial depth of cut (0.50-3.0 mm) and radial depth of cut (0.06-5.00 mm). Taking the rate of material removal as the response of both the numerical and physical experiments, the statistical analysis of the results obtained produced a mathematical model for the optimization of the process parameters and the rate of material removal during the milling operation of titanium alloy. The optimization produced 81 solutions whose desirability equals to 1 and the optimum values of the process parameters which produced the highest rate of material removal (40935.3 mm3/min) were: speed (260,000 mm/min), feed per tooth (0.03 mm), axial depth of cut (1.50 mm) and radial depth of cut (2.80 mm). The findings of the work will assist the manufacturing industries in the process design, modelling and optimization of the machining process of titanium alloy.

Journal of Industrial Engineering and Management, 2021

Purpose: This study aimed at implementing lean six sigma to evaluate the productivity and manufac... more Purpose: This study aimed at implementing lean six sigma to evaluate the productivity and manufacturing waste in the production line of a paper companyMethodology/Approach: The study is a case study in nature. The method illustrates how lean six sigma (LSS) is used to evaluate the existing production process in a paper production company with focus on productivity and manufacturing waste. The study considered a real-time problem of customer’s dissatisfaction. The gathered data is based on machine functionality (up time, down time and cycle time); materials and labour flow at every process stages of the production line. The optimization of the production process was based on lean tools like value stream mapping, process cycle efficiency, Kaizen, 5S and pareto chartFindings: Based on lean six sigma application, it was discovered that the present production performance was below standard and more manufacturing wastes were generated. The present productivity and manufacturing wastes are...

2021 International Conference on Electrical, Computer and Energy Technologies (ICECET), 2021

The need for renewable sources of energy to either complement or replace the conventional sources... more The need for renewable sources of energy to either complement or replace the conventional sources is increasingly gaining momentum. This study deals with the automation process control and automation of a biodiesel processing plant. The process control was achieved with the aid of sensors and micro-controller. The threshold values of the critical process parameters were pre-set on the micro-controller. The comparative analysis between the measured values from the sensors and the values preset on the micro-controller forms the basis for the execution of control actions. The performance of the blended forms of biodiesel produced using the automated plant was tested in a diesel engine. The results indicated efficient process control during the production of biodiesel. The comparative analysis of the Brake Specific Fuel Consumption (BSFC), Exhaust Gas Temperature (EGT) and Brake Thermal Efficiency (BTE), of the biodiesel blends produced indicated the capacity of the plant for biodiesel production. Hence, the findings of this work will add to the understanding of the biodiesel production using an automated plant. It will also add to the understanding of the process control and automation for biodiesel production.

2020 International SAUPEC/RobMech/PRASA Conference, 2020

This work is in line with the quest for improved energy generation by developing nations. A 12 kW... more This work is in line with the quest for improved energy generation by developing nations. A 12 kW capacity gasification system, which uses wood chips to produce combustible gas for the generation of electrical energy for domestic and experimental purposes, was developed. The materials employed for its development include; metal bolts/nuts, metal pipes, propane tank, open-ended cylinders, ball/check valves, a dc fan motor with a regulator, metal chain, rechargeable battery, metal caps and metal bowl. The design and finite element analysis of the gasifier was carried out using the Solidworks software 2018 version and fabricated using galvanized steel due to its high resistance to corrosion. A 12 V DC fan motor was incorporated into the system for the creation of air suction. The machining processes involved in the fabrication include; brazing, welding, cutting, polishing as well as painting. The performance evaluation of the gasifier system carried out with some wood chips which was continuously mixed in the gasifier chamber for 9 hours and the resulting tar content was obtained within the time interval. The results obtained show the interaction between temperature, time and height of the hopper. The analysis of the results obtained also show that wood is a suitable material for the production of producer gas. In addition, the gasification system can be used to meet some domestic and electrical energy requirements. The work has been able to lay a foundation for the production of combustible gas using a gasifier chamber.

Engineering and technology is key to sustainable development. It has become imperative for third ... more Engineering and technology is key to sustainable development. It has become imperative for third world yearning for sustainability and economic prosperity to build indigenous capacity as a driving force for technological breakthrough in vital sectors. In this work, key sectors such as energy, power, infrastructure, agriculture, manufacturing, ICT etc. that plays pivotal role in enhancing sustainability were examined with their impact or otherwise on sustainable development. Also, the road to sustainability demands deviations from conventional source of energy and transition to renewable sources so as to reduce the threat of fast depletion of fossil fuel as well as minimizing safety, economic and environmental challenges associated with fossil fuel. This work also examines detailed design of large scale biodiesel processing plant and the prospects of biodiesel as a green and safe alternative source of energy for powering diesel engines. Biodiesel a clean burning alternative to fossil...

2021 World Engineering Education Forum/Global Engineering Deans Council (WEEF/GEDC), 2021

A caustic potash processor capable of processing 30, 000 tons of caustic potash per anum from coc... more A caustic potash processor capable of processing 30, 000 tons of caustic potash per anum from cocoa pod husk was designed. It essentially consist of storage tank, fluidized bed dryer, rotary dryer operating at a temperature of 110 0 C for drying the feed, roll crusher which reduces the husks into smaller sizes and a furnace operated an elevated temperature to ensure proper ashing. The processor also consists of a reactor where leaching: the major process involved in the production of caustic potash from cocoa pod husk takes place. The reactor is lagged and heated internally after which an evaporator fired by a boiler is employed to concentrate the KOH solution. The water vapour leaving the evaporator condenses in the condenser and is recycled to the boiler. A detailed energy and material balance as well as analysis of process control system and instrumentation was also carried out to keep process variable within known safe operating limits in order to achieve the designed production...

Modeling of composite curing process is required prior to composite production as this would help... more Modeling of composite curing process is required prior to composite production as this would help in establishing correct production parameters thereby eliminating costly trial and error runs. Determining curing profile temperatures from experiment is a huge challenge which in itself is like re-inventing the wheel of trial and error, when mathematical models of physical, chemical and kinetic properties of the constituent materials could be used in modeling the cure situation to some degree of trust. This work has modeled two types of polymer based composite materials (Aluminum filled polyester and carbon-black filled polyester) representing polymer-metal and polymer-organic composites in order to predict the possible trends during microwave heating with regards to effect of heating rate on degree of cure of the composites. The numerical models were constructed by taking into account the heat transferred by electromagnetic energy through the resin/filler mixture, as well as kinetic h...

Procedia Manufacturing, 2020

A mathematical model for pseudo one component adsorption on a fixed bed is developed. The model t... more A mathematical model for pseudo one component adsorption on a fixed bed is developed. The model takes into account of external and internal mass transfer resistances with non ideal plug flow behaviour. In the present study, the Langmuir equilibrium isotherm is used to represent liquid-solid equilibrium relationship. The model consists of a set of couple partial differential equations, and the differential equations representing the mass balances of both fluid and pore phases are solved by the implicit backward Euler finite difference method and compared with previous models reported in literature. The effects of various important and influencing parameters such as flow rate, particle radius and bed porosity in breakthrough curve are studied in detail. Hence, the proposed model is suitable and applicable to study the fixed bed adsorption column performance under isothermal condition.

Purpose: The aim of this research is to study selected cyber cafe workstations to establish the c... more Purpose: The aim of this research is to study selected cyber cafe workstations to establish the current practices with reference to acoustic parameters. Also to re-design the work station, if necessary, in order to improve productivity, health safety and comfort of the operators in the work station. Design/Methodology/Approach: Optimising the acoustic design of the work stations can be a complex task because of the number of design parameters that must be considered. This problem has been made much easier by designing for the permissible acoustic limit. Because of the nature of the selected work station, Nomograph estimation method was used. Finally Doppler Effect was used to calculate the permissible acoustic distances between the sources of noise and operators in the work station. Finding: The work station have been examined under the combination of different acoustic parameters. The analysis of the results indicates some deficiencies in the design of the workstation based on the ...

Journal of Emerging Trends in Engineering and Applied Sciences, 2013

Correlation of vapour-liquid equilibrium data for hydrocarbon ternary system (ethane-n-pentane-n-... more Correlation of vapour-liquid equilibrium data for hydrocarbon ternary system (ethane-n-pentane-n-heptane) is very useful in the design decision of separation process equipment such as separation columns, extractors etc. The tool used for the correlation is MATLAB: a very reliable software with adequate neural network conditions such as multi-layer feed forward, back propagation etc. A comprehensive Artificial Neural Network (A N N) training and simulation model and list of pre-existing vapour-liquid equilibrium data for ethane-n-pentane-n-heptane system was employed for this work. Neural network was trained in MATLAB 7.10.0 environment. Several iterations were carried out on the ternary system until the performance goal was met. From the analysis of the output result, regression and iteration graphs when compared with experimental data, artificial neural network offered very small deviation from the target. This confirms conclusively that artificial neural network is a consistent an...

Engineering and technology is cardinal to sustainable development. It’s very peremptory for any d... more Engineering and technology is cardinal to sustainable development. It’s very peremptory for any developing nation yearning for sustainability and thriving economy to build indigenous capacity as a driving force for technological breakthrough in major sectors. In a developing country like Nigeria, having the largest population in Africa and agriculture as one of the sources of income to nearly 60 % of the total population, post-harvest and storage loss is a major dilemma, which needs to be looked into in due diligence. The major challenge of total dependant on fossil fuel resources by these technologies, which are depleting very fast and wise use of these precious resources are preferred for long-term energy sustainability. This paper presents a development of lowcost hybrid solar dryer for food preservation with the objectives of estimating the percentage moisture uptake at the end of the drying process. Different levels of drying were reviewed up to the use of solar drying technolo...

The aim of this research is to study selected health care workstations to establish the current p... more The aim of this research is to study selected health care workstations to establish the current practices with reference to the use of anthropometry. Also to re-design the work station, if necessary, in order to improve productivity, health safety and comfort of the patients and staffs using the work stations. Anthropometric dimensions of the patients in the examined health care system were used to design intensive care unit bed (ICU) and medical/surgical bed which can accommodate 5% 95% of patients male and female. The work stations were examined and analyzed under the combination of different anthropometric parameters. The analysis of the results indicates some deficiencies in the design of the workstations based on the design parameters and standard values from the literatures. Based on the analysis of these results the patients and their care givers may likely be exposed to back pain, fatigue, poor blood circulation and other related diseases. For demonstration of the applicatio...

The need for an efficient welding process which is fast, safe, cost-effective and will produce a ... more The need for an efficient welding process which is fast, safe, cost-effective and will produce a welded structure that combines high strength with integrity during railcar manufacturing is necessary due to the increasing demand and complexity of the manufacturing process. In this study, the Taguchi method and response surface methodology (RSM) were used for the numerical experimentation design of a railcar bogie frame. The modelling and simulation of the railcar bogie frame was conducted using the Commercial Abaqus software 2018. Using the Taguchi method, the designed experiment consists of an orthogonal array of four factors varied over three levels with the welding parameters in the following ranges: voltage (22–25 V), current (200–250 A), speed (0.01 m/s) and arc length (0.03–0.07 m) as input variables. The matrix generated nine experimental runs whose weld distortions were determined via the physical experimentations. Also, the RSM was used to study the cross effect of the input...

Procedia Manufacturing, 2020

Abstract Artificial Intelligence (AI) through robotic system offer solutions to the quest for aut... more Abstract Artificial Intelligence (AI) through robotic system offer solutions to the quest for autonomous system with high cutting efficiency for lawn mowing. This work discusses the design, fabrication as well as the performance evaluation of a prototype robot for lawn mowing. The Auto-desk Inventor 2018 was used for the computer aided design and simulation of the automatic lawn mower. The electrical circuit connections between the microcontroller and the rest of the electrical systems was also designed with the aim of producing a system that can cut grass at high efficiency with little or no human intervention. The machine was incorporated with GPS, cameras, infrared and ultrasonic sensors for the detection and avoidance of obstacles. The control systems comprises of the Arduino micro-controller which controls the two geared motors alternatively in order to control the direction of the lawn mower. This is done according to the readings from the sensors governed by the C-programmed instructions fed into the micro- controller. The fabrication of the robot was done with the combination of machining and assembly operations in the machine shop and the results obtained from the performance evaluation indicated that the developed robot can autonomously avoid obstacles, make 180 degree turn and cut a lawn to an even height at high efficiency. Hence, this work provides a self-governing lawn mower that can cut grass at high efficiency and avoid obstacles thus minimizing human drudgery.

Procedia CIRP, 2020

Abstract Cavitation is the phenomenon whereby the air bubbles implode on the impeller due to insu... more Abstract Cavitation is the phenomenon whereby the air bubbles implode on the impeller due to insufficient suction pressure at the inlet section thereby causing noise, vibration and in a long-term, corrosion of the impeller blades. However, the current devices and technologies used to address cavitation are inefficient. The use of intelligence gathered from telemetry data produced via cloud computing and IOT is becoming prevalent in the prediction and control of cavitation. The objective of this research is to simulate cavitation in industrial pumps using the IOT technology. Cavitation was simulated in both good and faulty centrifugal pumps using the Fast Fourier Transform Algorithm (FFT) integrated to an Arduino microcontroller. Subsequently, configuration of the sensors required to capture the data, ingestion into the cloud and numerical analysis of the data were executed using the Artificial Neural Network (ANN) as the machine learning algorithm. The results showed graphs as well as the tables of non-cavitation and cavitation patterns when the ball valve was fully opened (90o) respectively, at the suction of the centrifugal pump. For the non-cavitation patterns, the voltages lie from 0.5-0.75v and for the cavitation patterns, the voltages lie from 0.76-0.95v. Using this technique, the detection, analysis and accurate prediction of cavitation were established.

Procedia CIRP, 2020

Abstract The right combination of the process parameters that will bring about effective milling ... more Abstract The right combination of the process parameters that will bring about effective milling operation of titanium alloy (Ti6Al4V) is a critical decision which requires scientific basis for its justification. In this work, the Taguchi method involving four factors and three levels was employed for the process optimization during the milling operation of Ti6Al4V. The physical experiments were performed using the DMU80monoBLOCK Deckel Maho 5-axis CNC milling while a stationary dynamometer (KISTLER 9257A 8-Channel Summation of Type 5001A Multichannel Amplifier) was employed for data acquisition in real time. The range of the process parameters employed include: cutting speed (250000-270000 mm/min), feed per tooth (0.02-0.05 mm), axial depth of cut (0.50-3.0 mm) and radial depth of cut (0.06-5.00 mm). Taking the rate of material removal as the response of both the numerical and physical experiments, the statistical analysis of the results obtained produced a mathematical model for the optimization of the process parameters and the rate of material removal during the milling operation of titanium alloy. The optimization produced 81 solutions whose desirability equals to 1 and the optimum values of the process parameters which produced the highest rate of material removal (40935.3 mm3/min) were: speed (260,000 mm/min), feed per tooth (0.03 mm), axial depth of cut (1.50 mm) and radial depth of cut (2.80 mm). The findings of the work will assist the manufacturing industries in the process design, modelling and optimization of the machining process of titanium alloy.

Journal of Industrial Engineering and Management, 2021

Purpose: This study aimed at implementing lean six sigma to evaluate the productivity and manufac... more Purpose: This study aimed at implementing lean six sigma to evaluate the productivity and manufacturing waste in the production line of a paper companyMethodology/Approach: The study is a case study in nature. The method illustrates how lean six sigma (LSS) is used to evaluate the existing production process in a paper production company with focus on productivity and manufacturing waste. The study considered a real-time problem of customer’s dissatisfaction. The gathered data is based on machine functionality (up time, down time and cycle time); materials and labour flow at every process stages of the production line. The optimization of the production process was based on lean tools like value stream mapping, process cycle efficiency, Kaizen, 5S and pareto chartFindings: Based on lean six sigma application, it was discovered that the present production performance was below standard and more manufacturing wastes were generated. The present productivity and manufacturing wastes are...

2021 International Conference on Electrical, Computer and Energy Technologies (ICECET), 2021

The need for renewable sources of energy to either complement or replace the conventional sources... more The need for renewable sources of energy to either complement or replace the conventional sources is increasingly gaining momentum. This study deals with the automation process control and automation of a biodiesel processing plant. The process control was achieved with the aid of sensors and micro-controller. The threshold values of the critical process parameters were pre-set on the micro-controller. The comparative analysis between the measured values from the sensors and the values preset on the micro-controller forms the basis for the execution of control actions. The performance of the blended forms of biodiesel produced using the automated plant was tested in a diesel engine. The results indicated efficient process control during the production of biodiesel. The comparative analysis of the Brake Specific Fuel Consumption (BSFC), Exhaust Gas Temperature (EGT) and Brake Thermal Efficiency (BTE), of the biodiesel blends produced indicated the capacity of the plant for biodiesel production. Hence, the findings of this work will add to the understanding of the biodiesel production using an automated plant. It will also add to the understanding of the process control and automation for biodiesel production.