Adekunle Adeleke
@nileuniversity.edu.ng
Head of Department/Senior Lecturer, Department of Mechanical Engineering
Nile University of Nigeria
RESEARCH, TEACHING, or OTHER INTERESTS
Engineering, Energy, Renewable Energy, Sustainability and the Environment, Fuel Technology
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Paschal A. Ubi, Nuhu A. Ademoh, Esther N. Anosike-Francis, Abdulrahman A. Salawu, Adekunle A. Adeleke, Uzoma G. Okoro, Aliyu A. Abdullahi, and Frederick Ngolemasango
Springer Science and Business Media LLC
AbstractThe functional properties of engine mounts largely depend on the rubber compound formulation. This study proposes the use of rice husk–derived silica (RHS) blended with carbon black (N772) as an effective and environmentally friendly substitute for fillers used in rubber engine mounts (REMs). CV-60 natural rubber was filled with the blended fillers at various ratios, and their compatibility for use as rubber engine mounts (REMs) was assessed. Grey Relational Analysis was utilised to determine the optimal blend loading levels for use in rubber engine mounts, resulting in 40 phr of N772 and 20 phr of RHS cured at 130 °C and 2.5 MPa for 20 min. The developed REMs and conventional REMs had low vibration data variation during the performance assessment. Their resonance transmissibility was 5.03 and 3.74, corresponding to natural frequencies of 24.27 Hz and 26.94 Hz, respectively. The RHS/N772 REMs had excellent damping characteristics and lower transmissibility in the isolation zone of the vibration isolation curve, which is outside of the resonant frequency region. The efficiency curves showed that the blended fillers are a better and more effective material for REMs at all frequencies, balancing static deflection and vibration isolation.
Douglas Chinenye Divine, Stell Hubert, Emmanuel I. Epelle, Alaba U. Ojo, Adekunle A. Adeleke, Chukwuma C. Ogbaga, Olugbenga Akande, Patrick U. Okoye, Adewale Giwa, and Jude A. Okolie
Elsevier BV
Adekunle A. Adeleke, Jude A. Okolie, Chukwuma C. Ogbaga, Peter P. Ikubanni, Patrick U. Okoye, and Olugbenga Akande
Springer Science and Business Media LLC
Peter Pelumi Ikubanni, Makanjuola Oki, Adekunle Akanni Adeleke, Akintunde Sunday Onaolapo, and Prabhu Paramasivam
Wiley
AbstractThe recycling of agro‐waste as complementary reinforcements has received significant recognition in the development of aluminium matrix composites. Hence, this study examines the corrosion behavior of Al6063 reinforced with hybrid SiC/PKSA (palm kernel shell ash) particles. Through various ratios of SiC and PKSA particles in Al6063 alloy, composites were fabricated by double stir casting. Samples were cut and metallographically prepared for 1 M H2SO4 solution corrosion experiments. Gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopic analyses were employed. The composites corroded initially at relatively high rates, gradually declining during long immersion times in the acidic solution. The intersection of reinforcements at the general surfaces of the composites where flawed oxide skins predominate acted as active sites for corrosion initiation. From potentiodynamic polarization studies, the corrosion currents increased with time for all specimens, with A9 being 1075.65 μA/cm2 at 72 h as against 857.99 μA/cm2 at 24 h of measurement. The corrosion potentials for all the specimens hovered around −654.00 to −647.22 mV. Bode plots revealed similar electrochemical reactions over all the substrates' surfaces. The relative corrosion resistance by the specimen depends on the oxide films' nature as the cathodic interfacial reinforcements dropped off into the acidic environment.
O. O. Agboola, B. O. Akinnuli, B. Kareem, M. A. Akintunde, P. P. Ikubanni, and A. A. Adeleke
Springer Science and Business Media LLC
Jamiu K. Odusote, Adekunle A. Adeleke, Peter P. Ikubanni, Tesleem B. Asafa, Sharafadeen K. Kolawole, Emmanuel A. Opatola, Jude A. Okolie, and Thomas A. Orhadahwe
Springer Science and Business Media LLC
Adekunle Akanni Adeleke, Peter Pelumi Ikubanni, Jamiu Kolawole Odusote, Lamidi Tajudeen Kolawole, Thomas Aghogho Orhadahwe, and Mohammed Lawal
SciCell
The use of natural particles as reinforcement in polymers has been a growing research area. This study aims to explore the use of cassava back peel (CCBP) and iron-fillings (IF), as reinforcement material in epoxy resin-based composite. Composite plates were prepared for the casting of the epoxy resin reinforced with CCBP and IF composites using a hand lay-up technique. The percentage compositions by weight of the CCBP varied between 0%-10 %, while that of IF was kept constant (5%). The physico-mechanical behaviours of CCBP-reinforced epoxy polymer composites were studied using ASTM standards. The density of the epoxy resin was improved by the reinforcements. The maximum density obtained was 1270 kg/cm3 for 5%CCBP epoxy composite. The percentage of water absorption improved by the addition of the filler with 5%IF10CCBP epoxy hybrid composite recording 30% water absorption. Conversely, the ultimate tensile strength (UTS) and breaking strength (BS) varied with the addition of the filler materials. 5%CCBP epoxy composite recorded 41.26 MPa for both UTS and BS. Meanwhile, percentage elongation decreased with the addition of the fillers showing that the composites became less ductile. The HBN of epoxy was improved with the addition of fillers. The composites can be applied to automobile dashboards.
Peter P. Ikubanni, Adekunle A. Adeleke, Jamiu K. Odusote, Hassan Adegoke, Makanjuola Oki, and Jude A. Okolie
Springer Science and Business Media LLC
Asmau M. Yahya, Adekunle A. Adeleke, Petrus Nzerem, Peter P. Ikubanni, Salihu Ayuba, Hauwa A. Rasheed, Abdullahi Gimba, Ikechukwu Okafor, Jude A. Okolie, and Prabhu Paramasivam
American Chemical Society (ACS)
There is a lack of information about the detailed characterization of biomass of Nigerian origin. This study presents a comprehensive characterization of six biomass, groundnut shells, corncob, cashew leaves, Ixora coccinea (flame of the woods), sawdust, and lemongrass, to aid appropriate selection for bio-oil production. The proximate, ultimate, calorific value and compositional analyses were carried out following the American Standard for Testing and Materials (ASTM) standards. Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and X-ray fluorescence were employed in this study for functional group analyses, thermal stability, and structural analyses. The H/C and O/C atomic ratios, fuel ratio, ignitability index, and combustibility index of the biomass samples were evaluated. Groundnut shells, cashew leaves, and lemongrass were identified as promising feedstocks for bio-oil production based on their calorific values (>20 MJ/kg). Sawdust exhibited favorable characteristics for bio-oil production as indicated by its higher volatile matter (79.28%), low ash content (1.53%), low moisture content (6.18%), and high fixed carbon content (13.01%). Also, all samples showed favorable ignition and flammability properties. The low nitrogen (<0.12%) and sulfur (<0.04%) contents in the samples make them environmentally benign fuels as a lower percentage of NOx and SOx will be released during the production of the bio-oil. These results are contributions to the advancement of a sustainable and efficient carbon-neutral energy mix, promoting biomass resource utilization for the generation of energy.
Jude A. Okolie, Fredrick O. Omoarukhe, Emmanuel I. Epelle, Chukwuma C. Ogbaga, Adekunle A. Adeleke, and Patrick U. Okoye
Elsevier BV
Hauwa A. Rasheed, Adekunle Adeleke, Petrus Nzerem, Olusegun Ajayi, Peter Ikubanni, and Asmau M. Yahya
Springer Science and Business Media LLC
Jamiu Odusote, Adekunle Adeleke, Peter Ikubanni, Peter Omoniyi, Tien-Chien Jen, G. Odedele, Jude Okolie, and Esther Akinlabi
EDP Sciences
Hydroxyapatite (HAp) production from eggshells for dental implant purposes involved a novel approach utilizing a wet chemical precipitation technique. The eggshells, finely ground to a size below 250 µm, underwent calcination at a high temperature of 900°C for 2 hours. This thermal treatment facilitated the conversion of calcium carbonate into calcium oxide (CaO) while eliminating any organic components in the eggshell. To initiate the synthesis of HAp, a solution comprising 0.6 M phosphoric acid was added to the CaO dispersed in water. The resulting mixture was allowed to undergo aging at different time intervals ranging from 0 to 24 hours, promoting the formation of HAp. Subsequently, the HAp particles were oven-dried at 100°C for 2 hours to remove residual moisture. Finally, the dried particles were sintered at 1200°C in a muffle furnace to achieve the desired properties for dental implant applications. XRD peaks at 25, 33, 40, and 50° confirm the synthesized material as HAp. Vibrational modes of phosphate (PO43-), hydroxyl (OH-), and carbonate (CO32-) groups indicate carbonated HAp. Synthesized HAp holds potential for biomedical applications.
Peter Omoniyi, Segun Ibitoye, Olalekan Popoola, Peter Ikubanni, Adekunle Adeleke, Modupe Mahamood, Tien-Chien Jen, and Esther Akinlabi
EDP Sciences
Environmental pollution due to improper disposal of plastic waste has greatly degraded the livelihood of both humans and animals. In this article, polyethylene terephthalate (PET) bottles were used as reinforcement in scrap aluminum. The composite material was made through the stir-casting route. The samples were characterized using the microstructure, tensile strength, and hardness. Results show an increase in tensile strength up to 4% addition of PET and steady hardness reduction as reinforcement composition increases. However, the mechanical strength declines as reinforcement goes beyond 8%.
Jamiu Odusote, H. Oni, Adekunle Adeleke, Peter Ikubanni, Peter Omoniyi, Tien-Chien Jen, and Esther Akinlabi
EDP Sciences
The overwhelming cost of conventional lubricants has instigated the need for alternatives in the engineering industry. This study identified the physicochemical properties of Shea butter made from the shea nut and their application as a bio-grease in the food processing and industrial sectors. Some preliminary tests were conducted to ascertain the combination of materials that will produce grease with the right consistency as the commercial product. Results on its physicochemical properties showed that shea butter was suitable for use as lube base oil. Best bio-grease was obtained with mass combinations of 80.0 g of Shea butter, 0.5 g of resin, 1.0 g of P.K.O, 1.5 g of calcium hydroxide, 8 g of stearic acid, 1.5 g of silicate, 1.5 g of sodium carbonate, 4 g of biochar, and 2 g of cellulose. The physicochemical properties observed were evaporation loss (1.2%), ash content (4%), moisture content (0%), flash point (146.5℃), fire point (155℃), pour point (25.9℃), and density (0.97 g/cm3). Most of the properties of the bio-grease were found to be comparable with conventional grease. In addition, since the bio-grease was produced from majorly edible sources and based on its properties, it could be classified as H3 food-grade grease.
Adebayo Adekunle, Mojeed Okunlola, Peter Omoniyi, Adekunle Adeleke, Peter Ikubanni, Tajudeen Popoola, and Kobe Ibrahim
SCI AND TECH UNIVERSAL INC
Asbestos has been banned in many countries as a result of its negative effects on the environment and human health. As a result, a human-friendly friction material is required to replace asbestos in brake pads. Hence, the powder metallurgy technique was undertaken to develop friction material from locally sourced asbestos-free materials. Seashell was used as base elements with other additives. The filler material considered had a particulate size of 300 µm
Usman Khan, Chukwuma C. Ogbaga, Okon-Akan Omolabake Abiodun, Adekunle A. Adeleke, Peter P. Ikubanni, Patrick U. Okoye, and Jude A. Okolie
Elsevier BV
Idehai Ohijeagbon, Olawale Aransiola, Adekunle Adeleke, Peter Omoniyi, Peter Ikubanni, and Daniel Oguntayo
International Information and Engineering Technology Association
Tahir A. Zarma, Paul O. Micheal, Ahmadu A. Galadima, Tologon Karataev, Adekunle Adeleke, Oghenewvogaga Oghorada, and Hussein U. Suleiman
Elsevier BV
Adekunle A. Adeleke, Peter P. Ikubanni, Jamiu K. Odusote, Boluwatife B. Olujimi, and Jude A. Okolie
Springer Science and Business Media LLC
Jude A. Okolie, Toheeb Jimoh, Olugbenga Akande, Patrick U. Okoye, Chukwuma C. Ogbaga, Adekunle A. Adeleke, Peter P. Ikubanni, Fatih Güleç, and Andrew Nosakhare Amenaghawon
MDPI AG
Human and animal waste, including waste products originating from human or animal digestive systems, such as urine, feces, and animal manure, have constituted a nuisance to the environment. Inappropriate disposal and poor sanitation of human and animal waste often cause negative impacts on human health through contamination of the terrestrial environment, soil, and water bodies. Therefore, it is necessary to convert these wastes into useful resources to mitigate their adverse environmental effect. The present study provides an overview and research progress of different thermochemical and biological conversion pathways for the transformation of human- and animal-derived waste into valuable resources. The physicochemical properties of human and animal waste are meticulously discussed, as well as nutrient recovery strategies. In addition, a bibliometric analysis is provided to identify the trends in research and knowledge gaps. The results reveal that the USA, China, and England are the dominant countries in the research areas related to resource recovery from human or animal waste. In addition, researchers from the University of Illinois, the University of California Davis, the Chinese Academy of Sciences, and Zhejiang University are front runners in research related to these areas. Future research could be extended to the development of technologies for on-site recovery of resources, exploring integrated resource recovery pathways, and exploring different safe waste processing methods.
Adamu Ahmad, Hussain Usman Abdullah, Temitayo Samson Ogedengbe, Akeem Gbenga Amuda, Adekunle Akanni Adeleke, Adeniyi Ademola Sobowale, Timothy Adewale Adeyi, Esther Anosike-Francis, and Usman Allu Shuaibu
IEEE
An invention that could change how we deliver goods is autonomous delivery robots (ADRs). They can deliver different types of items through a wide range of spaces, like sidewalks, motorways, and enclosed spaces, including food, packages, and medical supplies. This literature review looks at the current state of autonomous delivery robot research and gives an insight on the various forms of autonomous delivery robots, the supporting technologies for their autonomous operation, and the challenges that remain before general implementation. The literature review concludes with the indication that autonomous delivery robots have the potential to seriously increase the efficiency and convenience of delivery services. However, there are a few challenges that need to be addressed before autonomous delivery robots can become a frequent reality. These include enhancing sensor dependability, addressing public safety concerns, and improving mapping and navigation algorithms. Despite these difficulties, the future of ADRs is bright. ADRs are probably going to become more important as technology develops in the delivery sector.
Temitayo Samson Ogedengbe, Adekunle Ibrahim Musa, Abiodun Abideen Yussouff, Oluranti Adetunii Abiola, Ismaila Olanrewaju Alabi, Timothy Adewale Adeyi, Adekunle Akanni Adeleke, and Akeem Gbenga Amuda
IEEE
This article gives a brief introduction to welding procedures and typical welding problems. As well as more contemporary techniques like laser welding and electron beam welding, it includes a variety of welding techniques such as arc welding, resistance welding, and gas welding. The article also discusses the origins and effects of typical welding faults such as and control methods such as good material choice and quality assurance systems. To ensure the integrity of welded components and structures, it is helpful to understand welding procedures and how to handle frequent faults. porosity, undercutting, partial fusion, and cracks in welded joints. Emphasis is placed on defect prevention.
Serifat Olamide Adeleye, Adekunle Akanni Adeleke, Petrus Nzerem, Peter Pelumi Ikubanni, Ayuba Salihu, and Adebayo Isaac Olosho
IEEE
Numerous agricultural byproducts, such as rice husk and straw, bagasse from sugar cane, palm kernel shell, wheat husk and straw, corn cobs, etc, are highly desired for the production of renewable energy and are seen as potential raw materials for high-value products. Because they can be used to extract quality silica and Calcium oxide for borosilicate glass production, this research has demonstrated that these wastes have a significant end value. X-ray diffraction (XRD) spectroscopy, Fourier transform infrared spectroscopy (FT-IR), and X-ray fluorescence spectroscopy (XRF) were used to characterize the calcined waste eggshell and wheat husk ash for crystal type, compound identification, and chemical composition. The findings demonstrated that the amount of silica and calcium oxide obtained from agricultural waste could be a suitable alternative source for making glass, with calcined eggshells having a calcium oxide content of 91.7% and wheat husk ash having a silica content of 71.3%. The potential for utilizing the CaO and amorphous silica in the formation of glass is thus intriguing.
Adekunle Akanni Adeleke, Petrus Nzerem, Salihu Ayuba, Esther Nneka Anosike-Francis, Adebayo Isaac Olosho, Kpabep Kerein Kalenebari, Yuguda Abdullahi Muhammad, Waliyi Adekola Adeleke, and Moses Oluwatobi Fajobi
IEEE
The escalating energy consumption rates and the alarming environmental impacts associated with fossil fuel usage have driven global attention towards alternative energy sources. While nuclear power has emerged as one such alternative, concerns about past reactor accidents and the health effects of radiation release have limited its widespread adoption. Renewable energy, on the other hand, offers a promising solution with minimal environmental harm compared to nuclear power. However, the intermittent nature of renewable energy sources and their inability to consistently supply power present significant challenges for nations aiming to harness these abundant resources. To address these challenges, the integration of simulation technology into energy generation processes has proven instrumental. By employing simulation tools, it becomes possible to identify, control, and even eliminate factors that may hinder energy generation and efficiency. Furthermore, simulation technology enables accurate predictions of the expected energy output from renewable sources. This paper presents a comprehensive review of the recent advancements and applications of simulation technology in renewable energy generation. It elucidates how simulation technology has been successfully integrated into renewable energy systems and discusses its potential to enhance the efficiency of renewable energy generation.