Browsing by Author "Akande, K. A."
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Item Effect of set-up height on the performance of pot-in-pot cooling device for storing food and drugs at ambient temperature(FUOYE Journal of Engineering and Technology, 2019) Yahaya, S. A.; Akande, K. A.; Raji, A. O.; Abdulrahman, K. O.; Enagi, I. I.The research aimed at evaluating the effect of set-up height on the performance of earthenware pot-in-pot cooling system. The pots were set up at different heights; H1 (0 m), H2 (0.5 m) and H3 (1 m) and observed for 59 days from 8:00am to 6:00pm daily. The inner temperatures obtained from the three different arrangements were determined using standard methods. The result showed that increasing the height from ground level (0 m) to 1 m increases the mean cooling effect by 8 %. Generally, it was observed that only the set-up height at 1m proved to have maximum efficiency of the pot-in-pot system performance.Item Mechanical Properties of Banana Pseudo Stem Fibre Reinforced Epoxy Composite as a Replacement for Transtibial Prosthetic Socket(Association of Professional Engineers of Trinidad and Tobago, 2016) Odusote, J. K.; Oyewo, A. T.; Adebisi, J. A.; Akande, K. A.Using natural plant fibres as reinforcement in polymers has earned relevance in recent years due to their eco-friendly nature. Thus, an investigation was undertaken on banana pseudo stem, a natural fibre abundantly available in Nigeria. Banana pseudo stem fibres are not only strong and lightweight, but also relatively inexpensive for they are often considered as waste. The purpose of this study is to establish the tensile, flexural, and hardness properties of banana pseudo stem reinforced in epoxy composite materials. This is projected to serve as a replacement to the currently used synthetic glass fibre transtibial prosthetic socket. The resin used was epoxy (TKL 121). Composite samples, after treatment of the continuous fibres with 5 % NaOH and 2 % ascetic acid solution, were prepared manually using hand-lay-up method with the fibre ratio of 0, 20, 30, 40 and 50 %. The results of 30 % glass fibre polyester composite (GFPC) were compared with those of banana pseudo stem epoxy composite (BPEC) produced in this study. The tensile, hardness and impact tests of BPEC at 40 % fibre content were 64.23 ± 4.11 MPa, 63.31 ± 0.03 MPa, 55.23 ± 0.20 BHR, respectively. These were slightly lower than those of the glass fibre composite, which are respectively 65.72 ± 3.30 MPa, 66.10 ± 1.88 MPa, and 61.05 ± 1.77 BHR. Consequently, BPEC can further be developed to serve as a potential replacement for glass fibre composite in prosthetic socket application using standard production procedure.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.