Browsing Mechanical Engineering by Issue Date
Now showing items 1-20 of 48
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Total solar radiation received at various collector inclinations
(Elsevier Science Ltd, http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description, 1994)Solar energy is finding wide application via several energy-saving devices and systems. Its use, especially in rural areas, can often be limited by the non-availability of complete information on insolation data. In this ... -
Mean global radiation captured by inclined collectors at various surface azimuth angles in Nigeria
(Elsevier Science Ltd, http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description, 1995)The use of solar energy is well established for low-grade thermal applications such as water heating and purification. In many of the solar systems, the collector surface located in the Northern Hemisphere faces the true ... -
Energy applications in Botswana
(Elsevier Science Ltd, http://www.elsevier.com/wps/find/journaldescription.cws_home/269/description#description, 1995)Botswana depends heavily on imported petroleum products for all premium applications. However, there is an abundant reserve of coal and other alternative sources of energy. This paper presents the energy trends and the ... -
Some implications of driver training for road accidents in Gaborone
(Elsevier Science Ltd, http://journals.elsevier.com/00014575/accident-analysis-and-prevention/, 1995)In many African countries, including Botswana, the driving schools and instruction given to pupils are uncontrolled. Thus, this paper presents the results of an investigation into the level of professional training offered ... -
Management of waste oil in Botswana and the possibilities of energy recovery from waste oil
(University of Botswana, 1998)Since independence, the economy of Botswana has been undergoing a rapid transition from one in which the majority of the people depend on traditional agriculture and pastoralism to one in which formal sector employment ... -
Management of waste oil in Botswana and the possibilities of energy recovery from waste oil
(University of Botswana, Faculty of Engineering and Technology, http://ajol.info/index.php/bjt, 1998-04)Since independence, the economy of Botswana has been undergoing a rapid transition from one in which the majority of the people depend on traditional agriculture and pastoralism to one in which formal sector employment ... -
Domestic use of electrical energy from wind energy in Botswana
(University of Botswana, Faculty of Engineering and Technology, http://ajol.info/index.php/bjt, 1998-04)This paper presents an examination of the possibility of using wind turbines generating electricity for households in the remote rural areas of Botswana. On the basis of theoretical consideration of the wind system generating ... -
Automobile pollution and the environment
(University of Botswana, 1999)It is widely recognised that air pollution caused by the global rapid increase of automobile traffic is a threat to the environment. With regard to automobiles there are three general areas of concern: urban pollution, ... -
Fundamentals of coal gasification technology and its relevance to Botswana coal industry
(University of Botswana, http://www.ub.bw, 1999)Coal is plentiful in many parts of the world but its combustion can create severe environmental and aesthetic problems.In the past three decades, the cost of crude oil and natural gas has been unstable and the reserves of ... -
Continuing professional development for practicing engineers in developing economies
(Institute of Electrical and Electronics Engineers (IEEE), http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=13, 1999-08)This paper presents the results of an investigation to determine the level of continuing professional development (CPD) for engineers in developing countries. Questionnaires were administered randomly to engineers of ... -
PSPICE model of an open-circuit DC shunt machine
(University of Botswana, 2000)Computer models are used to replicate the essential performance features of a physical element using convenient modeling and simulation programs. Within SPICE, an acronym for the Simulation Program with Integrated-Circuit ... -
A fourier method of determining the speed fluctuation coefficient of a general slider-crank mechanism
(University of Botswana, 2001)In this paper a method is presented which enables the solution of the equation of motion of the slider-crank mechanism. Expansion of functions into Fourier series is used in this method, whereby the solution of the equation ... -
Theoritical analysis of an offset single-stroke ram press for sunflower oil extraction
(International Symposium on Theory of Machines and Mechanisms (IFToMM), 2001)The single-stroke ram press machine is widely used for sunflower oil extraction in African countries. It is manually operated, low speed machine constructed on the basis of slider-crank mechanism. The paper presents a ... -
Oxide of nitrogen in diesel engines: formation, effects and control
(University of Botswana, 2001)Diesel engines are used in heavy duty applications because of their high effeciency an reliability. However, oxides of nitrogen emissions remain a major concern. In diesel engines, fuel combustion is responsible for a major ... -
A practical model for development of viable engineering education institutions in Africa: with a focus on management and quality of engineering eduation
(University of Botswana, www.ub.bw, 2001)One of the critical elements that determine the competitiveness of nations is the population density of, and quality of its engineers. This view has been corroborated by researchers such as Biluch (1989), Garelli et al ... -
A practical model for development of viable engineering education institutions in Africa: With a focus on management and quality of engineering education
(University of Botswana, Faculty of Engineering and Technology, http://ajol.info/index.php/bjt, 2001-10)One of the critical elements that determine the competitiveness of nations is the population density of, and quality of, its engineers. This view has been corroborated by researchers such as Bilich (1989), Garelli et al ... -
A fourier method of determining the speed fluctuation coefficient of a general slideer-crank mechanism
(University of Botswana, Faculty of Engineering and Technology, http://ajol.info/index.php/bjt, 2001-10)In this paper a method is presented which enables the solution of the equation of motion of the slider-crank mechanism. Expansion of functions into Fourier series is used in this method, whereby the solution of the equation ... -
Engineering education in Botswana
(Tempus Publications http://www.ijee.ie/, 2002)The economy of Botswana has grown rapidly since it became independent in 1966, but the population is only 1.7 million. Engineering construction projects are of large scale. The University of Botswana offers engineering ... -
Towards a systems approach to sustainable development
(University of Botswana, Faculty of Engineering and Technology, http://ajol.info/index.php/bjt, 2003-04)“Sustainable development” as a concept was popularised by a 1987 report of the United Nations World Commission on Environment and Development. The report defined sustainable development as “development that meets the needs ... -
The level of recycling operations in Botswana
(University of Botswana, www.ub.bw, 2004)This paper describes a case study that evaluated the level of recycling operations in Botswana. Recycling operations are now recommended as effective waste management strategies for reducing the amount of municipal solid ...