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 Prospects for software development for indigenous designs(NEC Publication, 1998) Simolowo, O. E.The importance of software development in the world today cannot be over-emphasized, moreso as applied in the field of engineering. Software development for indigenous engineering design needs to be given peculiar considerations as it entails developing software from the basics (high level language) for it to handle target indigenous design specifications. This paper therefore in its focus starts from the central point of all computed aided engineering activities called the “ database”. The database discussed entails (i)Documentation(ii)synthesis and analysis. Tools for software development such as computer languages and hardware configurations available within the country for indigenous software development have also been considered. Common computer language modes and their functions as well as practical techniques of packaging developed software have also been outlined. The design chart of the software for generation of Cam profiles developed in a research work (CAD of CAM profiles) based on the application of procedures discussed in this paper is shown as reference figure. Majority, research work in this area will alleviate the problem of much dependence on imported software whose applications are limited as regards local design and also not fully utilized due to the understanding of the software flexibility and capabilities by unskilled users.Item Design and construction of a plastic melting pot for low density polyethylene (LDPE)(1999) Odesola, I. F.; Bomide, A. K.In this project a melting pot was designed and constructed using available local materials. This pot was used to melt plastic resin without the resin-changing colour (turning brown). The project was divided into two parts: the design and construction aspect and the control aspect. A good temperature control was incorporated to achieve high quality output. The construction was carried out using galvanized mild steel. In this project a melting pot was designed and constructed using available local materials. This pot was used to melt plastic resin without the resin-changing colour (turning brown). The project was divided into two parts: the design and construction aspect and the control aspect. A good temperature control was incorporated to achieve high quality output. The construction was carried out using galvanized mild steel. It consists of a cylindrical enclosure that is divided into two chambers: the upper and larger one house the melting unit, the lower chamber houses sensing element of the temperature control equipment. The instrument used for the temperature control is a thermostat which has a temperature range of 0-200°. The dimension of the material used for the fabrication was based on the least thermal difference so that equilibrium can be achieved in a short time .Tests carried out after the construction of the prototype confirmed the relevancy of the project. The pot melted the plastic resin and flowed without change of colour.