scholarly works
Permanent URI for this collectionhttps://repository.ui.edu.ng/handle/123456789/477
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Item Ceramic engines: material properties for higher performance(1998) Simolowo, O. E.The four-stroke reciprocating internal combustion engine has been used as a case study, being that commonly utilized in most automobiles. General properties of ceramics were discussed while exposure was given to some high-performance ceramics. Theoretical deduction and analysis were then carried out to show improved engine performance using ceramic component. the engine performance parameter considered are:(i)power output (ii) mean effective pressure(iii) speed of engine rotation and (iv) mechanical efficiency. analysis based on ceramic properties showed that ceramics such as silicon carbide (SiC), silicon nitride(Si3N4), zirconia (ZrO2) and , titanium oxide (TiO2) proved to have more favourable properties for most engine parts when subjected to engine conditions where they are located as compared to their metallic, steel and alloy counterparts. Though much work has been done in the production of ceramic engines, predictions as to developing (i) adiabatic ceremic engines and (ii) turbo compounded engine show the extent to work that still needs to be done in this area of developing ceramic engines.Item Preliminary design of an automated white board cleaner(2014-04) Simolowo, O. E.The work presented in this paper is on the preliminary design and fabrication of an automated whiteboard cleaner. The objective here in is to reduce the man-power involved in cleaning white boards after use. Though the use of smart boards is increasing, many institutions in the developed and developing world still make use of white boards. The Autodesk software was used for the CAD drawing and thereafter the design analyses and fabrication were done. The auto-board was designed to be powered by a single phase 0.6 HP electric motor. The chain drive parameters were determined based on estimations of the centre distance between the sprockets, the required cleaning time, number of sweeps, total number of chain links and the expected performance. The cleaning efficiency of the auto-white board cleaner is estimated to be better than the manual operation when the equipment is fully completed.Item Modelling and forecasting periodic electric load for a metropolitan city in Nigeria(2012-01) Eneje, I. S.; Fadare, D. A.; Simolowo, O. E.; Falana, A."In this work, three models are used to analyze the electric load capacity of a fast growing urban city and to estimate its future consumption. Ikorodu, the case-study location is a highly populated city whose energy demand is continuously increasing. The ultimate focus of this study is to establish a basis for the comparison of different electric load consumption for the existing populace and to provide estimates for the future planning of the city. In this work, three different models have been used to present more accurate load predictions and to enhance proper comparison of results. Among numerous mathematical and scientific models that are applicable to this kind of task, the compound-growth method, the linear model approach and the cubic model have been chosen to enhance diversity in load analysis. The futuristic scheme to be harnessed will fall within the ranges of values obtained from the three different models used in forecasting. This paper concludes with issues pertaining to economics of load utilization as it affects substantive planning. "Item Developing a dynamic load-tracking learning-software for winch lift design(2012) Simolowo, O. E.; Gbadebo, A."Many engineering applications involve the problem of a dynamic loading property which is often hard to track and critical in design analysis. The winch-lift design learning software developed in this work incorporates the graphical display of dynamic loading on the cable or rope of the winch lift within the first seconds of its operation. The learning software allows the user to generate a profile of this load and its acceleration against time in order to obtain the maximum value of the load to be borne by the whole unit. This feature is underplayed in most engineering software which usually uses the static total nominal load for simplicity. The overall program flow is in three sections based on the software architecture. They are the study, practice and the assessment sessions. At the validation stage, the results generated were compared with those obtained by numerical procedures in literature. The results were in the same range with differences in values of the order 0.1%. In conclusion, a learning software for exploring motorized winch systems has been developed in this work. "Item Energy-cost analysis of alternative sources to electricity in Nigeria(Indian Society for Education and Environment (iSee), 2012-01) Simolowo, O. E.; Oladele, S.In this work, a comparative analysis of alternative energy sources has been carried out to ascertain their suitability in terms of availability, cost, advantages and disadvantages among other factors. The selected energy alternatives are solar and inverters. The first case study-site was an office suit located in government reserved area and the second a medium house unit within Lagos the most commercial city in Nigeria. Practical surveys and data collection were carried out for the selected sites coupled with their energy auditing to obtain the total energy consumed. An energy sizing analysis helped in determining the energy specifications and installation-cost of the alternative energy sources in the surveyed sites. The results obtained presented guiding principles among other solutions on how homes and offices canbe powered by applying the method of selective-loading to reduce energy cost.Item Developing of a computerized brain diagnosing system for case study analyses at a university teaching hospital in Nigeria(IAARR, 2011-11) Ogunsanwo, O. D.; Akinola, S. O.; Simolowo, O. E."This research presents a conceptual procedure for characterizing the essential nature of the diagnostic reasoning process. This computerization of the medical neurological section of the University College Hospital Ibadan in Nigeria leads to effectiveness and efficiency of the existing medical diagnosing process. The main purpose of this project is to design a computerized brain diagnosing system that would be used in carrying out the daily diagnosing activity in the clinic. The developed computerized system has numerous advantages over manual operation which is very tedious and time consuming. As part of the research method, a set of clinical and ward observations were personally made confirming that the computerized system is prompt, less prone to errors and efficient. This work deals mainly with the analysis of the manual system and the computerization of the newly design system. Moreover, it explains how operations are carried out on records and use of data encryption method so as to ensure confidentiality in the use of the software. "Item A computer-based product classification and component detection for demanufacturing processes(Taylor & Francis, 2011) Simolowo, O. E.; Mousavi, A.; Adjapong, P. O.The aim of this paper is to propose a novel computer- based product classification, component detection and tracking for demanufacturing and disassembly process. This is achieved by introducing a series of automated and sequential product scanning, component identification, image analysis and sorting-leading to the development of a bill of material (BOM). The produced BOM can then be associated with relevant disassembly/ demanufacture proviso. The proposed intergrated image sorting and product classification (ISPC) approach can be considered as a step forward in automation of demanufacturing activities. The ISPC model proposed in this paper utilises and builds on the state-of-the-art technology and current body of research material and the factors that inhibits CIDR methods in practice are presented. A novel solution for the integration of imaging and material identification techniques to overcome some of the existing shortcomings of automated recycling processes is proposed in this paper. The proposed product scanning and component detection ISPC software consists of four distinct models:the repertory database, the search engine, the product-attributes updater and the image sorting and classification algorithm. The software framework that intergrates the components is presented in this paper. Finally, an overall assessment of applying ISPC at various stages of CIDR processes concludes the article.Item Software developed for polynomial cams design and analysis(2010-07) Simolowo, O. E.; Bamiro, O. E.The numerical design of cams that lead to their final manufacture has always been associated with much tedium and time consuming mathematical and graphical procedures. This is due to the number of lengthy equations and many design options involved in such design processes. Therefore, in this work, a significant contribution has been made in cam system design and analysis, by developing a software package and applying it to the analysis of polynomial cams. Two critical parameters associated with the design and manufacturers of cam systems have been analyzed; the prime circle radius of the cam and face width of the follower. Precisely, the effect of using the 3-4-5 and 8th- order polynomial functions on the two parameters while designing plate cams with reciprocating flat face followers has been analyzed in this work. Results show that these two parameters are directly influenced by the type of cam angular segments in the optimum design and final manufacture of cam system. In this work reliable software capable of performing extensive optimum design analyses when properly utilized has been developed.Item CAD/CAM applications: status and impact in Nigerian industrial sector(2010-06) Simolowo, O. E.; Okonkwo, F. C.; Kehinde, O. O.This research assessed, among others, the current status and the impact of Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) applications in the Nigerian industrial and technological sector. Two prominent cities Lagos and Ibadan were selected as centers of case studies to establish the level of the applications. Data was collected from industries within the 2 cities in the areas of manufacturing, design, production, construction and consultancy service units during a yearlong study. From the survey, 56% of companies visited in Lagos metropolis apply Computer-Aided Engineering (CAE) activities in their operations. Also 60% of the companies considered in Ibadan metropolis apply CAE, of which 75% are into CAD, 12.5% are applying CAM whereas 12.5% are utilizing Computer Numerically Controlled (CNC) machines. Conclusively, the commonest CAD techniques employed by the industries surveyed are Auto CAD and Archi CAD representing 55.6% and 33.3% of the total packages being used in the visited companies respectively.Item The effect of tribological processes on productivity: a case study of industries in Ibadan metropolis of Nigeria(2009-05) Simolowo, O. E.; Adeniji, O. O.This study analyzed the connection between tribological and other forms of processes in manufacturing industries to productivity in such outfits. Results from the study showed that 54% of the visited industries recorded the highest hours of downtime due to tribological processes, while,15% and 31% of the industries had the highest downtimes hours resulting from electrical and other processes respectively. Also 23% of the total industries were observed to have more electrical faults, 31% recorded highest tribological issues, while 46% had more of non-tribological non-electrical faults.
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