Browsing by Author "Seun Jesuloluwa"

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A Model-Based Design of an Electric Kettle for Nigerian Households
(IEEE, 2024-08-15) Nwachukwu Praise; Ibikunle Rotimi; Adekunle Akanni Adeleke; Peter Pelumi Ikubanni; Seun Jesuloluwa; Onyemachukwu Chidindu
Electric kettles, essential in Nigerian households is the focus of this paper. It aims to develop and analyse discrete-time and continuous-time models using engineering software. First, a Computer-Aided Design (CAD) model is developed, followed by the comprehensive analysis of the steady-state thermal properties of the model using finite element analysis (FEA). Subsequently, a physical model, with three sub-systems, is developed and subjected to simulation. This study examines both models, scrutinizes the effect of alterations in thermal parameters, and conducts a comparative analysis with an actual kettle. The findings, offer valuable insights into the dynamics of the electric kettle and provide intuitive suggestions for enhancing its efficiency and usage.
Characterization and assessment of selected agricultural residues of Nigerian origin for building applications
(Taylor and Francis, 2025-12-31) Esther Nneka Anosike-Francis; Gina Odochi Ihekweme; Paschal Ateb Ubi; Ifeyinwa Ijeoma Obianyo; Seun Jesuloluwa; Adekunle Akanni Adeleke; Prabhu Paramasivam; Azikiwe Peter Onwualu; Rasoamalala Vololonirina
The high rate of agricultural residue generation in Nigeria in recent times poses a serious environmental hazard. Thus, there is a need to valorize these residues for various engineering applications. Five Nigerian agricultural residues (okro, plantain, jute, kenaf, and sisal) were studied to determine their potential for forming natural fiber composites for building applications. The samples were subjected to a process of peeling and immersion in water for 15–20 days to facilitate the degradation of microbial cells and ease the extraction of fibers. Proximate and lignocellulose analyses of the samples were conducted according to the American Standard for Testing and Materials (ASTM) specifications. The physico-mechanical and thermal properties of the agricultural residues were examined using an Intron universal testing machine and a thermogravimetric analyzer. The fiber phase analysis revealed a crystallinity index range of 41.20–66.08% and a crystallite size of 30.79–84.00 nm, indicating that the fibers were thermally stable above 280 C. Fourier Transform Infrared analysis provided conclusive evidence of the presence of distinct chemical compositions and their associated functional groups. The study contributes a reliable database for agricultural residues in Nigeria, particularly for construction applications. It is also being utilized to inform the design and implementation of manufacturing processes for roofing tiles and boards intended for general applications
Characterization and assessment of selected agricultural residues of Nigerian origin for building applications
(COGENT ENGINEERING, 2024-12-22) Esther Nneka Anosike-Francis; Gina Odochi Ihekweme; Paschal Ateb Ubi; Ifeyinwa Ijeoma Obianyo; Seun Jesuloluwa; Adekunle Akanni Adeleke; Prabhu Paramasivam; Azikiwe Peter Onwualu; Rasoamalala Vololonirina
The high rate of agricultural residue generation in Nigeria in recent times poses a serious environmental hazard. Thus, there is a need to valorize these residues for various engineering applications. Five Nigerian agricultural residues (okro, plantain, jute, kenaf, and sisal) were studied to determine their potential for forming natural fiber composites for building applications. The samples were subjected to a process of peeling and immersion in water for 15–20 days to facilitate the degradation of microbial cells and ease the extraction of fibers. Proximate and lignocellulose analyses of the samples were conducted according to the American Standard for Testing and Materials (ASTM) specifications. The physico-mechanical and thermal properties of the agricultural residues were examined using an Intron universal testing machine and a thermogravimetric analyzer. The fiber phase analysis revealed a crystallinity index range of 41.20–66.08% and a crystallite size of 30.79–84.00 nm, indicating that the fibers were thermally stable above 280 °C. Fourier Transform Infrared analysis provided conclusive evidence of the presence of distinct chemical compositions and their associated functional groups. The study contributes a reliable database for agricultural residues in Nigeria, particularly for construction applications. It is also being utilized to inform the design and implementation of manufacturing processes for roofing tiles and boards intended for general applications
Formation of Ceiling Boards by the Combination of Sugarcane Bagasse and Rice Husk.
(ICGET, 2018-10-26) Seun Jesuloluwa; Ige Bori
Constructing housing components from agricultural wastes have become a special area of research in engineering. Hence a lot of resources is pushed into this to obtain sustainable, eco-friendly and low-cost houses. This work studies some properties of ceiling boards produced from sugarcane bagasse and rice husk. The ceiling boards were produced using water, cement as binder with binder composite ratio of 3:2 by weight, sugarcane bagasse and rice husk of varying ratios by weight from 100% of bagasse to 0% of it with a 25% decrease. The compression of the boards was done manually using moulded block as weight. From the results, it was observed that the ceiling board produced with 100% sugarcane bagasse has better properties to be considered for ceiling board as compared with the most commonly used ceiling boards like Plaster of Paris(POP), asbestos and Poly Vinyl Chloride(PVC). The properties examined are thermal conductivity, thermal resistivity, water absorption and density. The better ceiling board has thermal conductivity to be 2.27W/mK, thermal resistivity of 0.441 mK/W, water absorption of 16.89 and density of 470.3 kg/m3
Isolation, characterization and response surface method optimization of cellulose from hybridized agricultural wastes
(Scientifc Reports, 2024-06-21) Hauwa A. Rasheed; Adekunle Akanni Adeleke; Petrus Nzerem; Adebayo Isaac Olosho; Temitayo Samson Ogedengbe; Seun Jesuloluwa
This study explores the utilization of eight readily available agricultural waste varieties in Nigeria—sugarcane bagasse, corn husk, corn cob, wheat husk, melina, acacia, mahogany, and ironwood sawdust—as potential sources of cellulose. Gravimetric analysis was employed to assess the cellulose content of these wastes, following which two selected wastes were combined based on their cellulose content and abundance to serve as the raw material for the extraction process. Response Surface Methodology, including Box-Behnken design, was applied to enhance control over variables, establish an optimal starting point, and determine the most favorable reaction conditions. The cellulose extracted under various conditions was comprehensively examined for content, structure, extent of crystallinity, and morphological properties. Characterization techniques such as X-ray Diffraction, Scanning Electron Microscopy, and Fourier Transform Infrared Spectroscopy were employed for detailed analysis. Compositional analysis revealed sugarcane bagasse and corn cob to possess the highest cellulose content, at 41 ± 0.41% and 40 ± 0.32% respectively, with FTIR analysis confirming relatively low C=C bond intensity in these samples. RSM optimization indicated a potential 46% isolated yield from a hybrid composition of sugarcane bagasse and corn cob at NaOH concentration of 2%, temperature of 45 °C, and 10 ml of 38% H2O2. However, FTIR analyses revealed the persistence of non-cellulosic materials in this sample. Further analysis demonstrated that cellulose isolated at NaOH concentration of 10%, temperature of 70 °C, and 20 ml of 38% H2O2 was of high purity, with a yield of 42%. Numerical optimization within this extraction condition range predicted a yield of 45.6% at NaOH concentration of 5%, temperature of 45 °C, and 20 ml of 38% H2O2. Model validation confirmed an actual yield of 43.9% at this condition, aligning closely with the predicted value. These findings underscore the significant potential of combinning and utilizing agricultural wastes as a valuable source of cellulose, paving the way for sustainable and resource-efficient practices in various industrial applications.
Metal Matrix Reinforcements - Fabrication, Applications, and Properties: A Review
(IEEE, 2023-11-01) Adeiza Avidime Samuel; Ishiaka Shaibu Arudi; Sambo Markus; Adekunle Akanni Adeleke; Temitayo Samson Ogedengbe; Seun Jesuloluwa; Mazeedah Aladejana; Osagie O. Jahswill; Samuel Lawrence Chijioke; Ayodeji Emmanuel Adeyelu
Metal matrix composites (MMCs) have emerged as a transformational class of materials, demonstrating exceptional promise for increasing mechanical, thermal, and specialized characteristics across varied applications. This study gives a detailed assessment of current improvements in metal matrix reinforcements, concentrating on their effects, production processes, and applications. Particulate, fiber, and whisker reinforcements are examined for their influence on mechanical, thermal, and specialized characteristics. Various production processes, including solid-state fabrication and liquid-state fabrication, are examined. The evaluation focuses on applications in the aircraft and automotive industries. Addressing obstacles and future prospects in scalable manufacturing and innovative reinforcements, the article gives insights into the growing environment of metal matrix composites over the past years.