Browsing by Author "Ajiboye, T. K."
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Item Combustion characteristics of bio-degradable biomass briquettes(School of Engineering, Taylor’s University, Malaysia, 2018) Abdulkareem, S.; Hakeem, B. A.; Ahmed, I. I.; Ajiboye, T. K.; Adebisi, J. A.; Yahaya, T.This paper reports on the combustion characteristics of biodegradable biomass briquettes prepared from charcoal, sawdust and sugarcane bagasse. The three materials were mixed in respective ratio of 20:20:60, 20:30:50, 20:40:40, 20:50:30 and 20:60:20. The briquettes were produced using Budenberg dial gauge hydraulic compression machine with the formation of briquettes under 64 MPa pressure with 120 seconds dwell time. Combustion characteristics such as proximate analysis, fuel-burning rate, fuel ignition time and afterglow time of the produced briquettes were determined. Results show that briquette with sample composition of 20:50:30 has better calorific value of 24613.69 kJ/kg and sample with ratio 20:30:50 has lowest calorific value of 22500.3 kJ/kg, while sampling with ratio 20:30:50 has better physical properties with shatter resistance of 99.61% and porosity index value of 47.40%.Item COMPUTER AIDED DESIGN OF RECTANGULAR AND CIRCULAR SHAPED ELECTRICAL FURNACES(Nigerian Journal of Technical Development (NJTD), 2003) Ajiboye, T. K.; Adeyemi, M.B.The software computer package developed was designed to analyse the heat generation and transfer for an electric furnace, and the selection of appropriate heater dimensions and material for the design of cylindrical and rectangular - shaped electric furnaces to meet specific operations at a specified desired temperature and to achieve certain performance level. Datas generated by the software "furnace" are graphed for heater material and can be used to determine electric furnace design for the cross-sectional dimensions and unit power consumption of the heater material. used at various electric heating power output for different desired operating temperatures not exceeding 1000oCItem Corrosion Properties of Aluminum Alloy Reinforced with Wood Particles(Multidisciplinary Digital Institute, 2022) Omoniyi, P. O.; Abolusoro, O.; Olorunpomi, O.; Ajiboye, T. K.; Adewuyi, O. A.; Aransiola, O.; Akinlabi, E.Abstract: The need for improved metallic materials in terms of physicomechanical, microstructure, and corrosion properties has necessitated the need to form metal matrix composites. This article adopted the stir casting procedure and used wood particles (WP) to reinforce aluminum alloy at different volume fractions. The corrosion properties of the aluminum matrix in 3.5% wt NaCl were characterized using scanning electron microscopy (SEM), the potentiodynamic polarization curve, and open circuit potential. The corrosion results of the reinforced aluminum alloys was compared with the unreinforced alloy. The unreinforced sample showed improved resistance to corrosion compared to the reinforced aluminum alloy. All samples exhibited visible Pits on SEM observation.Item The Design, Construction and Testing of an Orange Peeler(The Library and Publications Committee University of Ilorin, Ilorin, Nigeria., 2010) Olusegun, H. D.; Ajiboye, T. K.Item Determination of Cutting Forces and Temperature changes in Heat-Treated Medium Carbon Steel during Lathe Turning Process(Centre for Cooperation in Science & Technology among Developing Societies (CCSTDS), 2011) Ajiboye, T. K.Item Development of a Two-way Motions Egg Incubator and Hatchery(The Nigerian Institution of Mechanical Engineers (NIMechE)., 2015) Abdulkareem, S; Ajiboye, T. K.; AbduAbdulrahim, A. T.; Musa, M. K.; Abdulganiyu, K. O.Item Evaluation of Mechanical Properties of Medium Carbon Steel Quenched in Water and Oil(AU Journal of Technology, 2012) Odusote, J. K.; Ajiboye, T. K.; Rabiu, A. B.Samples of medium carbon steel were examined after heating between 900ºC980ºC and soaked for 45 minutes in a muffle furnace before quenching in palm oil and water separately. The mechanical behavior of the samples was investigated using universal tensile testing machine for tensile test and Vickers pyramid method for hardness testing. The microstructure of the quenched samples was studied using optical microscope. The tensile strength and hardness values of the quenched samples were relatively higher than those of the as-cast samples, suggesting improved mechanical properties. However, samples quenched in palm oil displayed better properties compared with that of water-quenched samples. This behavior was traced to the fact that the carbon particles in palm oil quenched samples were more uniform and evenly distributed, indicating the formation of more pearlite structure, than those quenched in water and the as-received samples.Item Evaluation of Sustainable Hydropower Potential of Unilorin and Asa Dams in Ilorin, Kwara State, Nigeria(Clarion University of Pennsylvania, Clarion, USA, 2016) Salami, A. W.; Sule, B. F.; Ayanshola, A. M.; Bilewu, S. O.; Ajiboye, T. K.Item Finite Element Thermal Modelling applied to Furnace Cooling and Refractory Design.(Published by Faculty of Engineering, Ladoke Akintola University of Technology, Ogbomoso., 2005) Ajiboye, T. K.Item Hardness and Tensile Properties of Prophylactic Knee Brace Produced from Cow Bone and Periwinkle Shell Composites(Dhaka University of Engineering & Technology, Gazipur, Bangladesh, 2019-06) Abdulkareem, S.; Adekaye, T. A.; Abdulrahim, A. T.; Shuaib-Babata, Y. L.; Ajiboye, T. K.; Ahmed, I. I.; Ibrahim, H. K.; Adebisi, J. A.; Yahaya, TApplication of reinforced aluminium scrap for the production of prophylactic knee brace (Pkb) particularly with agro-waste materials is rarely available. In this work, hardness and tensile properties of aluminium alloy (Al 6063) straps reinforced with cow bone (Cb) and periwinkle shell (Ps) for the production of Pkb were investigated. The Cb and Ps sourced were cleaned and the Cb was sun-dried for 4 weeks before crushing with Denver laboratory Ball mill (Model: 48-D0500/Q). The Ps was also crushed, sun-dried for 7 days and treated in the oven (Model SDO/225) at 110 oC for 30 minutes to remove moisture. The particle size of 75 μm was used to cast six (6) each of aluminium/cowbone (Al/Cb) and aluminium/periwinkle shell (Al/Ps) composites. The cast aluminium composites of Pkb and original Pkb were investigated for density, hardness, and tensile properties. It was observed that addition of Cb and Ps in the cast Pkb gave a density of 2.68 g/cm3 and 2.60 g/cm3 respectively. The average values of hardness and tensile strength obtained were 41.18 BHN and 135.88 MPa respectively when Ps was added to the cast aluminium Pkb, while addition of Cb gave harness values of 40.45 BHN and tensile strength of 134.63 MPa.Item Organizing and Planning of Maintenance work in Turbine and Compressors(National Centre for Hydropower Research and Development (NACHRED), An Agency of Energy Commission of Nigeria, University of Ilorin, Ilorin., 2010) Ajiboye, T. K.Item Physical and Mechanical Characteristics Of Charcoal, Sawdust and Sugarcane Bagasse as Solid Fuel Materials(Universiti Teknikal Malaysia Melaka (UTeM), 2017) Abdulkareem, S; Badejo, H. A.; Ahmed, I. I.; Adebisi, J. A.; Yahaya, T.; Ajiboye, T. K.; Abdulrahim, A. T.This paper reports on the physical and mechanical characteristics of briquettes produced from charcoal, sawdust and sugarcane bagasse using molasses with sodium silicate as binders. Charcoal, sawdust and sugarcane bagasse were mixed in a respective ratio of 20:20:60, 20:30:50, 20:40:40, 20:50:30 and 20:60:20. The briquettes were produced using Budenberg dial gauge compression machine, with a pressure of 64 MPa at 120 seconds dwell time. Physical properties (relaxation ratio, compaction ratio and shattering index) and mechanical property (compressive strength) of the produced briquettes were investigated. Results show that briquette with sample composition of 20:30:50 has better physical properties with a relaxation ratio of 1.562, a compaction ratio of 7.573 and shatter index of 99.6%, while sample with ratio 20:40:40 has the highest compressive strength of 55.43 kN/m2.Item Quality Improvement in PVC Industry through Six-Sigma Analysis of Machine Process Parameters(Mechanical Engineering, University of Ibadan, 2016) Owolabi, C. T; Abdulkareem, Sulaiman; Ajiboye, T. K.; Akande, K. A.; Ahmed, Ismaila IdowuSix-sigma is an organised and systematic method for strategic process improvement that relies on statistical and scientific methods. In the present work six Sigma methodology was adopted to reduce defect rates and achieve significant quality up-grade in a PVC pipe manufacturing industry. Taguchi method of experimental design was applied for optimization of the process, quality and performance output of manufacturing process. The cause and effect diagram was implemented to identify the root cause of the defects resulting in poor product quality. From the analysis, the major root causes of defects were the process parameters- the vacuum pressure, temperature and take-off speed. Applying Taguchi method of experimental design for process parameter optimization, the process resulted in more superior quality. An estimated cost loss improvement of 37% was achieved and Part Per Million defects reduced from 67,487 to 20,503.