IAES International Journal of Robotics and Automation (IJRA)
People with impairments who utilize robotic arms have a great deal more independence in their dai... more People with impairments who utilize robotic arms have a great deal more independence in their daily lives. The robotic arm can help persons with specific needs by using voice control, which is practical. The working mechanism is fashioned to have four degrees of freedom (4-DOF) with the inclusion of a jaw or gripper. The Arduino microcontroller, the speech module, and the arm are the main components of the robotic arm, which is a lightweight model driven by four motors. The servo motor is used to supply the rotational motion in the arm’s three rotary joints and end effector. Rotation in two directions is made possible by the geared DC motors employed, which alter their direction of rotation if the polarity is flipped. The automatic voice recognition technology aids in comprehending spoken words picked up by a microphone. The HM2007 processor, the brains of the speech recognizer, is necessary for the speech recognizer to function. Digital commands are created from analog speech input...
Journal of Emerging Trends in Engineering and Applied Sciences, 2014
Fuel economy now plays a central role in design considerations for fuel-fired melting furnaces. A... more Fuel economy now plays a central role in design considerations for fuel-fired melting furnaces. Apart from the fuel economy consideration, the need for increase in thermal efficiency and environmental friendliness of operation necessitated the usage of heat exchanger for the recycling of waste gases in the operation of a melting furnace. An attempt is therefore made in this work to computationally model and simulate the temperature distribution of both hot and cold streams along the length of a double-pipe recuperative heat exchanger incorporated in a ferrous-melting furnace. This was done by modelling a conjugate heat transfer phenomenon through Turbulent Fluid-Thermal Interaction. The computational analysis done was based on the assumption that the temperature and radiant characteristics of the waste gases are taken to be constant over the whole furnace volume; the temperature in various points of metal surface is constant and the heat flow transferred from the gases to furnace li...
A salt bath furnace was developed using electrical heating as source of heat which can be used in... more A salt bath furnace was developed using electrical heating as source of heat which can be used in tertiary institution laboratories as well as by small and medium scale enterprises (SMEs).The salt bath was designed and manufactured virtually using CAD/CAM procedures, after which the production and assembling was carried out. A Material selector software aided in the materials selection, where mild steel was selected as the material for the casing, while other materials for the construction were selected based on functions and properties of the materials, cost considerations and ease of fabrication into component parts. The performance of the furnace was evaluated and, it was observed that the salt bath furnace has relatively fast heating rate of 16.67 0 C/min when compared to conventional brands of salt bath and muffle furnaces that are available in the market. The furnace also has good heat retaining capacity and uniform heating rate. Keywords: Salt bath furnace, Heating Rate, CAD/...
The traditional way of achieving different grain particle sizes in hammer mills is by manually ch... more The traditional way of achieving different grain particle sizes in hammer mills is by manually changing the screen to the desired size. This manual process is a production procedure that is time-consuming, demanding, and resource-draining. This study incorporated a grain identification and speed control mechanism into a hammer mill machine. The grain detection mechanism is a system that recognizes a grain type through an RGB (Red, Green, Blue) colour sensor. The system has been programmed and trained to vary the speed of a 2hp electric motor with a maximum speed of 2800rpm based on the colour-matching result obtained when the grain is scanned on the colour sensor. The machine was evaluated using performance parameters such as power consumption and grain sieve analysis of milled grains using three crops (yellow corn, white corn, and cowpea). The Three crops were programmed for milling at three motor speeds (2800rpm, 2200rpm, and 1800rpm), and the result is presented. This paper showe...
The dataset contains complete raw and processed data obtained from the characterization of firecl... more The dataset contains complete raw and processed data obtained from the characterization of fireclay refractory obtained from a very large deposit in Ajebo Area of Abeokuta in Ogun State of Nigeria
IAES International Journal of Robotics and Automation (IJRA), 2020
This work developed a cost-effective framework for agriculturists to regularly monitor their crop... more This work developed a cost-effective framework for agriculturists to regularly monitor their crops against intruding rodents and other security concerns using modern drone technology through configuration and deployment of an autonomous UAV which also functions as a remotely piloted vehicle. This was done by configuring a quadcopter capable of causing a disturbance when a rodent is observed through an inbuilt alarm system whose sound is amplified to be loud enough to cause the animals to leave the farm area. A framework for real-time image and live video transmission from the farm to a designated remote base station was developed. This was achieved through programming codes that configured the drone to operate an intelligent alarm and object tracking systems which enables a live feed from the UAV using Arduino IDE and Mission Planner for autonomous flight control. The requisite algorithms were developed using the framework of tracking, learning and detection (TLD) in the OpenCV soft...
This study presents comparative evaluation on the brands of flux coated mild steel electrodes ava... more This study presents comparative evaluation on the brands of flux coated mild steel electrodes available in the Nigerian market. There are little or no established scientific facts on why a particular brand of mild steel electrode is given preference to others in usage and cost. Spark, microstructural, microhardness and tensile strength tests of the resultant weldment sample of each electrode brand were comparatively analyzed. The results obtained showed the percentage compositions of the weldment constituents, micrographs and values of tensile strength of adhesion as well as the hardness tests. The comparative analyses revealed that FED electrode (made in Nigeria) weldment exhibited the closest conformity with the expected mechanical and chemical properties of an ideal mild steel electrode weldment, followed by Oerlikon electrode (made in Nigeria under license from abroad ) and lastly China electrode (Imported).
The need for increase in thermal efficiency, fuel economy and environmental friendliness of opera... more The need for increase in thermal efficiency, fuel economy and environmental friendliness of operation necessitated the usage of heat exchanger for the recycling of waste gases in the operation of a melting furnace. This work therefore focuses on the analysis of the developed recuperative heat exchanger for recycling the waste heat through modelling and simulation of heat distribution in the exchanger. This was done by modelling a conjugate heat transfer phenomenon through Turbulent Fluid-Thermal Interaction. The periodicity of the flow is taken into cognizance because a heat exchanger where the flow is fully developed is being modelled. Due to the inherent difficulty in making a periodic configuration converge from a homogeneous initial guess, an initial calculation with constant inlet velocity and fixed outlet pressure is first performed. The logarithmic wall function boundary condition for turbulent flow is used to model the solid-fluid interfaces. An algebraic relationship—the lo...
International Journal of Heat and Technology, 2021
Received: 19 June 2020 Accepted: 25 December 2020 Three major parameters for efficient liquid-fue... more Received: 19 June 2020 Accepted: 25 December 2020 Three major parameters for efficient liquid-fuel-fired melting-furnaces include fueleconomy, thermal efficiency and environmental friendliness of operation. These key parameters form the basis for the adoption of recuperator in the waste gas recycling released during many melting operations in furnaces. This work analysed the thermal performance of both cold and hot fluids across the length of a double-pipe recuperator coupled to a ferrous-melting furnace. The thermal analysis carried out was anchored on some basic assumptions including taking the radiant and temperature characteristics of the exiting waste gases from the exhaust of the furnace as being constant over the volume of the furnace while the temperature at various positions on metal surface is equally taken as being constant. In addition, the heat flow transferred from the waste gases to the lining of the furnace is taken to be by convection and it is equal to the heat flo...
The performance efficiency of all centrifugal blowers that utilize radial-flow impellers depends ... more The performance efficiency of all centrifugal blowers that utilize radial-flow impellers depends greatly on the mode of impelling. This work therefore focuses on different designs of two of the most important parts of the blower – the impeller and the volute casing – together with the evaluation of their operational performances. In all the designs, fluid enters the inlet port at the center of the rotating impeller which is the suction eye. As the impeller spins, it thrusts the fluid outward radially, causing centrifugal acceleration. As it does this, it creates a vacuum in its wake, drawing even more fluid into the inlet. The volute casing performs the function of slowing the fluid and increasing the pressure. The impeller, driven by the blower shaft adds the velocity component to the fluid by centrifugally casting the fluid away from the impeller vane tips.
The blower was specifically designed to ensure a near-complete standardization in the design of E... more The blower was specifically designed to ensure a near-complete standardization in the design of EMR500. The suction conditions and other application data are used to calculate parameters such as the suction specific speed, specific speed, required shaft power, required impeller dimension and volute dimensions. The impeller was made to be of the closed type because of the level of pressure needed most especially when the rotary furnace is incorporated with a heat exchanger. The blower was designed to convert ‘driver ’ energy to kinetic energy in the fluid by accelerating it to the outer rim of the revolving device known as the impeller. The impeller, driven by the blower shaft adds the velocity component to the fluid by centrifugally casting the fluid away from the impeller vane tips. The amount of energy given to the fluid corresponds to the velocity at the edge or vane tip of the impeller.
IAES International Journal of Robotics and Automation (IJRA)
People with impairments who utilize robotic arms have a great deal more independence in their dai... more People with impairments who utilize robotic arms have a great deal more independence in their daily lives. The robotic arm can help persons with specific needs by using voice control, which is practical. The working mechanism is fashioned to have four degrees of freedom (4-DOF) with the inclusion of a jaw or gripper. The Arduino microcontroller, the speech module, and the arm are the main components of the robotic arm, which is a lightweight model driven by four motors. The servo motor is used to supply the rotational motion in the arm’s three rotary joints and end effector. Rotation in two directions is made possible by the geared DC motors employed, which alter their direction of rotation if the polarity is flipped. The automatic voice recognition technology aids in comprehending spoken words picked up by a microphone. The HM2007 processor, the brains of the speech recognizer, is necessary for the speech recognizer to function. Digital commands are created from analog speech input...
Journal of Emerging Trends in Engineering and Applied Sciences, 2014
Fuel economy now plays a central role in design considerations for fuel-fired melting furnaces. A... more Fuel economy now plays a central role in design considerations for fuel-fired melting furnaces. Apart from the fuel economy consideration, the need for increase in thermal efficiency and environmental friendliness of operation necessitated the usage of heat exchanger for the recycling of waste gases in the operation of a melting furnace. An attempt is therefore made in this work to computationally model and simulate the temperature distribution of both hot and cold streams along the length of a double-pipe recuperative heat exchanger incorporated in a ferrous-melting furnace. This was done by modelling a conjugate heat transfer phenomenon through Turbulent Fluid-Thermal Interaction. The computational analysis done was based on the assumption that the temperature and radiant characteristics of the waste gases are taken to be constant over the whole furnace volume; the temperature in various points of metal surface is constant and the heat flow transferred from the gases to furnace li...
A salt bath furnace was developed using electrical heating as source of heat which can be used in... more A salt bath furnace was developed using electrical heating as source of heat which can be used in tertiary institution laboratories as well as by small and medium scale enterprises (SMEs).The salt bath was designed and manufactured virtually using CAD/CAM procedures, after which the production and assembling was carried out. A Material selector software aided in the materials selection, where mild steel was selected as the material for the casing, while other materials for the construction were selected based on functions and properties of the materials, cost considerations and ease of fabrication into component parts. The performance of the furnace was evaluated and, it was observed that the salt bath furnace has relatively fast heating rate of 16.67 0 C/min when compared to conventional brands of salt bath and muffle furnaces that are available in the market. The furnace also has good heat retaining capacity and uniform heating rate. Keywords: Salt bath furnace, Heating Rate, CAD/...
The traditional way of achieving different grain particle sizes in hammer mills is by manually ch... more The traditional way of achieving different grain particle sizes in hammer mills is by manually changing the screen to the desired size. This manual process is a production procedure that is time-consuming, demanding, and resource-draining. This study incorporated a grain identification and speed control mechanism into a hammer mill machine. The grain detection mechanism is a system that recognizes a grain type through an RGB (Red, Green, Blue) colour sensor. The system has been programmed and trained to vary the speed of a 2hp electric motor with a maximum speed of 2800rpm based on the colour-matching result obtained when the grain is scanned on the colour sensor. The machine was evaluated using performance parameters such as power consumption and grain sieve analysis of milled grains using three crops (yellow corn, white corn, and cowpea). The Three crops were programmed for milling at three motor speeds (2800rpm, 2200rpm, and 1800rpm), and the result is presented. This paper showe...
The dataset contains complete raw and processed data obtained from the characterization of firecl... more The dataset contains complete raw and processed data obtained from the characterization of fireclay refractory obtained from a very large deposit in Ajebo Area of Abeokuta in Ogun State of Nigeria
IAES International Journal of Robotics and Automation (IJRA), 2020
This work developed a cost-effective framework for agriculturists to regularly monitor their crop... more This work developed a cost-effective framework for agriculturists to regularly monitor their crops against intruding rodents and other security concerns using modern drone technology through configuration and deployment of an autonomous UAV which also functions as a remotely piloted vehicle. This was done by configuring a quadcopter capable of causing a disturbance when a rodent is observed through an inbuilt alarm system whose sound is amplified to be loud enough to cause the animals to leave the farm area. A framework for real-time image and live video transmission from the farm to a designated remote base station was developed. This was achieved through programming codes that configured the drone to operate an intelligent alarm and object tracking systems which enables a live feed from the UAV using Arduino IDE and Mission Planner for autonomous flight control. The requisite algorithms were developed using the framework of tracking, learning and detection (TLD) in the OpenCV soft...
This study presents comparative evaluation on the brands of flux coated mild steel electrodes ava... more This study presents comparative evaluation on the brands of flux coated mild steel electrodes available in the Nigerian market. There are little or no established scientific facts on why a particular brand of mild steel electrode is given preference to others in usage and cost. Spark, microstructural, microhardness and tensile strength tests of the resultant weldment sample of each electrode brand were comparatively analyzed. The results obtained showed the percentage compositions of the weldment constituents, micrographs and values of tensile strength of adhesion as well as the hardness tests. The comparative analyses revealed that FED electrode (made in Nigeria) weldment exhibited the closest conformity with the expected mechanical and chemical properties of an ideal mild steel electrode weldment, followed by Oerlikon electrode (made in Nigeria under license from abroad ) and lastly China electrode (Imported).
The need for increase in thermal efficiency, fuel economy and environmental friendliness of opera... more The need for increase in thermal efficiency, fuel economy and environmental friendliness of operation necessitated the usage of heat exchanger for the recycling of waste gases in the operation of a melting furnace. This work therefore focuses on the analysis of the developed recuperative heat exchanger for recycling the waste heat through modelling and simulation of heat distribution in the exchanger. This was done by modelling a conjugate heat transfer phenomenon through Turbulent Fluid-Thermal Interaction. The periodicity of the flow is taken into cognizance because a heat exchanger where the flow is fully developed is being modelled. Due to the inherent difficulty in making a periodic configuration converge from a homogeneous initial guess, an initial calculation with constant inlet velocity and fixed outlet pressure is first performed. The logarithmic wall function boundary condition for turbulent flow is used to model the solid-fluid interfaces. An algebraic relationship—the lo...
International Journal of Heat and Technology, 2021
Received: 19 June 2020 Accepted: 25 December 2020 Three major parameters for efficient liquid-fue... more Received: 19 June 2020 Accepted: 25 December 2020 Three major parameters for efficient liquid-fuel-fired melting-furnaces include fueleconomy, thermal efficiency and environmental friendliness of operation. These key parameters form the basis for the adoption of recuperator in the waste gas recycling released during many melting operations in furnaces. This work analysed the thermal performance of both cold and hot fluids across the length of a double-pipe recuperator coupled to a ferrous-melting furnace. The thermal analysis carried out was anchored on some basic assumptions including taking the radiant and temperature characteristics of the exiting waste gases from the exhaust of the furnace as being constant over the volume of the furnace while the temperature at various positions on metal surface is equally taken as being constant. In addition, the heat flow transferred from the waste gases to the lining of the furnace is taken to be by convection and it is equal to the heat flo...
The performance efficiency of all centrifugal blowers that utilize radial-flow impellers depends ... more The performance efficiency of all centrifugal blowers that utilize radial-flow impellers depends greatly on the mode of impelling. This work therefore focuses on different designs of two of the most important parts of the blower – the impeller and the volute casing – together with the evaluation of their operational performances. In all the designs, fluid enters the inlet port at the center of the rotating impeller which is the suction eye. As the impeller spins, it thrusts the fluid outward radially, causing centrifugal acceleration. As it does this, it creates a vacuum in its wake, drawing even more fluid into the inlet. The volute casing performs the function of slowing the fluid and increasing the pressure. The impeller, driven by the blower shaft adds the velocity component to the fluid by centrifugally casting the fluid away from the impeller vane tips.
The blower was specifically designed to ensure a near-complete standardization in the design of E... more The blower was specifically designed to ensure a near-complete standardization in the design of EMR500. The suction conditions and other application data are used to calculate parameters such as the suction specific speed, specific speed, required shaft power, required impeller dimension and volute dimensions. The impeller was made to be of the closed type because of the level of pressure needed most especially when the rotary furnace is incorporated with a heat exchanger. The blower was designed to convert ‘driver ’ energy to kinetic energy in the fluid by accelerating it to the outer rim of the revolving device known as the impeller. The impeller, driven by the blower shaft adds the velocity component to the fluid by centrifugally casting the fluid away from the impeller vane tips. The amount of energy given to the fluid corresponds to the velocity at the edge or vane tip of the impeller.
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