Transylvanian Review

 Journal

 Cocoa Butter And Cake Yield Prediction For Production Planning In Cocoa Processing Industry

 Akinnuli B. O., Ayodeji, S. P. And Adeyeri, Michael Kanisuru

 2018

Crushing of dried Cocoa beans and pressing of the paste that comes out of it, called “Cocoa Liquior” yields cocoa butter and cake. Both are of high economic value and boost the Internal Generated Revenue (IGR) of any Nation producing them. In planning for future production of butter and cake, there is need for a tool capable of predicting the quantity of butter and cake that can be gotten from any quantity of dried cocoa beans pushed into the processing plant. This study developed an empirical model which stands as a production decision support system (DSS) to determine net cocoa beans processed, cocoa nibs available for grinding into liquor, butter and cake yied from the mass of liquor pressed for production planning of cocoa processing in industry. The developed empirical model predicted total yield of 374.41 tonnes of liquor cocoa beans, out of which butter was 174.50 tonnes and cake was 200.28 tonnes when 522.30 tonnes through put was processed for six months, January to June 2015. The waste materials (beans, nibs, liquor, butter and cake), mass of shell removed, and the materials unprocessed left on the production line was 148.02 tonnes. The actual results collected from the factory floor for the same six months are: liquor yield 377.83 tonnes out of which butter was 175.59 tonnes, Cake 202.24 tonnes, the waste materials, mass of shell removed and the unprocessed left on the production line was 149.06 tonnes the efficiency of the model is 99.08% and the results correlation (r) is +1 this shows that both results have strong relation. 

 Arctic Journal

 Journal

 From Industry 3.0 To Industry 4.0: Smart Predictive Maintenance System As Platform For Leveraging

 Adeyeri, M. K.

 2018

Digital transformation of Industry 3.0 into Industry 4.0 in the area of machinery upkeep is being proposed. There is revolution advancement and transformation in technology involved in machinery design and usage from the stone-age till the very present age. The envisaged technology gap between third industrial world and fourth Industrial world would not be overemphasized nor undermined. Industry 4.0 which is synonymous to smart manufacturing is characterized by the will of self-awareness, self-prediction, self–reconfiguration and self-maintenance all built on the knowledge of information technology rooted in digital analytics. While Industry 3.0 machinery are marked with electronics and automation based on integrated circuits with its upkeep hinged on man-machine interaction. Therefore this paper which is an onset of ongoing research work presents a proposed framework and procedural steps involved in leveraging predictive maintenance activities that are needed for industry 3.0 machines to leverage on or upgrade its upkeep to self-induced maintenance through embedment and use of smart predictive system based on digital data analytics. Thus, upgrading it to unified platform with smart manufacturing (factory of the future) which would definitely make the machines relevant with advent of technology rather than rendering them obsolete and useless 

 Journal Of Production Engineering

 Journal

 Development Of Electricity Generating System For A Micro-power Plant

 Kareem, B. Ewetumo, T., Adeyeri, M. K., Oyetunji, A. And Olowookere, S. T

 2018

The move from fossil fuel to clean energy has become the focus of the 21st century, to suplement the energy needs of the world which have been on the increase. This research tackles the challenge of energy inadequacy by designing and fabricating electric generator for micro-power plant using locally sourced materials. The design of the 5.5kW induction generator involved the application of recycling technique on the discarded scrap motor. Discarded electric motor after cleaning was redesigned and rewound to give an electric power output of 5.5 kW. The generator was tested under load and no load conditions. The outcomes showed that the generator can adequately carry a load of 2.3 kW when operated at speed ranging between 2300 and 2400 pm. The output voltage ranging between 150 V and 190 V, while the ouput current was in the range 6.07A and 6.35A. Higher load carrying capacity, 5.0 kW was achievable at the rotory design speed, 3000 rpm with the maximum voltage and current limits, 239.6 V and 10.467 A, respectively. The 3-phase induction generator was able to sustain higher power output, 5.0 kW of the design capacity 

 Journal Of Power And Energy Engineering,

 Journal

 Design Of Steam Turbine For Electric Power Production Using Heat Energy From Palm Kernel Shell

 Kareem, B., Ewetumo, T., Adeyeri, M. K., Oyetunji, A. And Olatunji, O. E.

 2018

The steam turbine is a prime mover that converts kinetic energy in steam into rotational mechanical energy through the impact or reaction of the steam against the blades. The aim of this study is to design a steam turbine for a small scale steam power plant with target of producing electricity. The turbine is driven by the heat energy from palm kernel shells as a renewable energy source obtained at a lower or no cost. The study was concentrated on design of turbine elements and its validation using computer packages. Specifically, the microturbine design was limited to design, modeling, simulation and analysis of the rotor, blades and nozzle under the palm kernel shell as fuel for the micro power plant. In blade design, stress failures, efficiency and blade angle parameters were considered. In casing volume design, the overall heat transfer and mean temperature, and different concepts were applied. The thermal distribution on stator and rotor was considered in order to determine its level of tolerance. The design software packages used for design validation were Solidworks and Comsol Multiphysics for analysis. Simulation results showed that the designed steam turbine can adequately tolerate change in stress/load, torsion/compression, temperature and speeds. 

 International Journal Of Integrated Engineering,

 Journal

 Electric Power Generation Crisis In Nigeria: A Review Of Causes And Solutions

 Emovon I., Samuel, O. D., Mgbemena C. O., Adeyeri, M.K.

 2018

The low power generation in Nigeria had hindered her economic growth and industrialisation. The nation had carried out various reform to ameliorate the electric power crisis but all to no avail. The electric power crisis has made so many industries to relocate to more environmental friendly nations. Furthermore, the terrible state of the nation’s basic infrastructure such as water supply, health care system and petroleum product distribution are all symptom of an economy that is insalubrious because of the nations’ incapability to meet electric power demand. The subject of power generation in Nigeria is interesting, vital and worthy of investigation. Some researchers have investigated the root causes of low power generation in Nigeria and they came up with diverse factors responsible for the lingering electric power crisis. In this research, a review of previous papers in the literature on factors responsible for the low power generation in Nigeria is performed. From the survey, an all-inclusive factors affecting power generation in Nigeria are presented and discussed. On the basis of the number of authors that cited the individual factor, the whole factors are ranked and categorised. Finally, in this paper, general solutions are proffered to minimise /eliminate the major challenges confronting power generation in Nigeria. The research findings revealed that the major challenges confronting power generation in Nigeria are factors such as poor plant maintenance, aged/obsolete equipment and gas pipe line vandalism and that these challenges can be minimised/eliminated through structured maintenance methodology and adequate funding among others. 

 Springer

 Journal

 A Maintenance System Model For Optimal Reconfigurable Vibrating Screen Management

 Makinde, O. A., Mpofu, K., Ramatsetse, B. I., Adeyeri, M. K. And Ayodeji, S. P.

 2018

The reconfigurable vibrating screen (RVS) machine is an innovative beneficiation machine designed for screening different mineral particles of varying sizes and volumes required by the customers’ through the geometric transformation of its screen structure. The successful RVS machine upkeep requires its continuous, availability, reliability and maintainability. The RVS machine downtime, which could erupt from its breakdown and repair, must also be reduced to the barest minimum. This means, there is a need to design and develop a maintenance system model that could be used to effectively maintain the RVS machine when utilized in surface and underground mines. In view of this, this paper aims to develop a maintenance system model that could be used to effectively maintain the RVS machine when used in surface and underground mines. The maintenance system model unfolds the predictive (i.e. diagnosis and prognosis) algorithms, the e-maintenance strategic tools as well as the dynamic maintenance strategic algorithms required to effectively maintain the RVS machine. Four different case studies were presented in this paper to illustrate the applicability of this maintenance system model in maintaining and managing the RVS machine when utilized in the mining industries. 

 Springer

 Journal

 Machine Signature Integrity And Data Trends Monitoring, A Diagnostic Approach To Fault Detection

 Adeyeri, M.K.,

 2018

This chapter proposes machine signature integrity and its violation detection as an approach to fault diagnostic. It uses machine history and its present (in situ) data through monitoring as potent tool in detecting incipient faults. This monitoring program is a function of set parameters that put in place as watch dog to provide signals or alert whenever there is fault initiation on the machine system. A robust flowchart on how fault could be detected, isolated, and identified along with its algorithm for the diagnostic program inherent on vibration-induced faults is presented, and if these algorithms are rightly appropriated, fault will not only be detected, but isolated and identified in any production system or manufacturing. 

 IEEE

 Conferenceproceeding

 Design Of A Pulverizing And Packaging Machine For Vegetable Powder Production

 Adeyeri, M. K., Ayodeji, S. P., Ojo, O.T And Musa, S. S.

 2018

The design of pulverized and packaging machine is discussed. The pulverizer and packaging machine were designed using appropriate design equations. From design analysis, the speed of the pulverizer shaft, belt velocity, maximum belt tension and power transmitted by the pulverizer belt were 900 rpm, 5.89 m/s, 317.9 N and 1771.2 W respectively. In the same analysis, 102.3 N of centrifugal force was estimated to be acting on the hammers, while the torque acting on the pulverizer pulley and maximum sheer stress on the shaft were 18,794.4 Nmm and 2.5 N/mm2. The velocity of the conveyor belt and conveyor capacity were 1.07 m/s and 30.3 tons/hr while the effective tension of the conveyor belt and horse power required to drive the conveyor belt were 201.8 N and 1.5 Hp respectively. The design was simulated using ANSYS to check the structural stability and functionality of the system. Simulation results showed that the maximum deformation experienced by the milling mechanism was 7.284 mm while the maximum static and dynamic load was not more than 131 Mpa. The beater mechanism had the maximum deformation of 1.283 x 10-5 mm while the twisting and bending moment was 25707 pa. The maximum stress imposed by the static and dynamic load on the storage device was 12 Mpa at the deformation of 0.016 mm. Packaging machine component had an average factor of safety of 3.5. The results of the design and simulations showed that the machine is safe for the selected working conditions. 

 IEEE

 Conferenceproceeding

 Development Of Drying Machine For Vegetable Extracts

 Ayodeji, S. P., Adeyeri, M. K., Ojo, O.T And Lasisi, G. T.

 2018

developed. The machine consists of sub-components: belt and pulley system; dryer enclosure; conveyor assembly; air fans; heat sources; product feeder; and other accessories. The power transmitted by the belt and pulley system was designed as 72.53 W. The speed of the dryer shaft and length of the belt that connect the motor and dryer pulleys together were estimated to be 60 rpm and 957.94 mm respectively with tension values of 176.77 N (T1) and 22.46 N (T2) on tight and slack sides of the belt. The designed value for the diameter of the dryer shaft for full strength was estimated as 10.7 mm. The conveyor belt length, corrected factor, belt speed, belt capacity, belt power and pressure loss through the belt were estimated to be 1070 mm, 1.035, 0.47 m/s, 0.279 kg/s, 11.57 W and 450 Pa respectively. The mass of the load per unit length of the belt was 2.14 kg/m. While the maximum belt tension and feed flow rate on the conveyor belt which the machine can handle were 388.4 N and 1.01 kg/s (3636 kg/hr) respectively. The drying rate of 0.856 kg/s at fresh air rate of 9.51 kg/s was obtained. The thermal energy requirement of the heating chamber was 1352.3 W over the heat transfer area of 4.55×10-4 m2. The electrical power of the conveyor dryer was 46.11 W while overall efficiency of the machine was estimated as 71.64 %. 

 School Of Engineering And Engineering Tech. FUTA

 Journal

 Conceptual Design Of Battery Powered Vehicle For Children Amusement Park Using Nigerian Anthropometry Parameters

 Ayodeji, S. P. Adeyeri, M. K. And Oni, O. O.

 2017

Exercise helps children to be active and lack of it can lead to boredom. The problem of unavailability of facilities designed for children amusement park using the right anthropometric parameters and the procurement cost due to importation duties have been a big challenge. Provision of children vehicle for amusement park using anthropometric parameters will go a long way to solve the problems associated with boredom. Anthropometric parameters from 250 (150 male and 100 female) children between ages 3 to 12 were collected and analysed. The 5th, 25th, 50th, 75th and 95th percentiles for female and male respectively were used in the design of the children vehicle. Detailed drawings and simulation of the design concept were produced on Autodesk Inventor CAD software. Three deep cycle battery of 200Ah x 12V each was proposed as the energy driver that will drive the vehicle for 1hr at a carrying load capacity of 2280N. The simulation result ensure the stability of the vehicle