Department of Mechanical Engineering: Recent submissions
Now showing items 21-40 of 44
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Investigation of the physical and chemical stability of biodiesel produced from Jatropha Curcas Species in Zimbabwe
(Zimbabwe Institution of Engineers, 2016-02)Jatropha curcas L. seeds as a raw material for biodiesel production are a rapidly growing interest over the world because of their high oil content, ecological adaptability, and excellent fuel properties. Though there is ... -
A procedure for sizing pump-pipe systems with regard to minimising life cycle costs manageable on excel spreadsheets
(Zimbabwe Institution of Engineers, 2016-02)Pump-pipeline systems are a common feature of every industry and account for about 20% of the world’s electrical energy demand. Pump and pipe selection should happen simultaneously in pump-pipe system design rather than ... -
Mechanical thermal stresses and creep analysis of boiler tubes
(Zimbabwe Institution of Engineers, 2016-02)The boiler tubes are operated continuously at high temperature and pressure. Hence at high pressure for forces acting on the boiler tubes will be high. This research paper focuses on the analysis of one of the long term ... -
Design of a vehicle door structure based on finite element method.
(2014)The performance of door assembly is very significant for the vehicle design. In the present paper, the finite element method is used in the development processes of the door assembly. The stiffness, strength, modal ... -
Elasto-Plastic collapse analysis of pipe bends using finite element analysis
(2014)When an external load is applied to one of its ends, a pipe’s bends cross section tends to deform significantly both in and out of its end plane. This shell type behaviour characteristic of pipe bends and mainly due to ... -
Finite element analysis of ROM silo subjected to 5000 tons monotonic loads at an anonymous mine in Zimbabwe
(International Institute of Engineers, 2014-07)This paper introduces finite element analysis of Run off Mine (ROM) silo subjected to dynamic loading. The proposed procedure is based on the use of theoretical equations to come up with pressure and forces1 exerted by ... -
Modelling and simulation of a dump truck tipping mechanism using EdenLISP
(Zimbabwe Institution of Engineers, 2013-12)The application and use of EdenLISP in mechanism design and analysis is demonstrated on the tipping mechanism of a dump truck. The foundation for mechanical engineering design is centred on mechanisms, their design operation ... -
Effects of Plasma cutting on surface integrity of mild steel
(Zimbabwe Institution of Engineers, 2013-12)Persistent fatigue failure observed in vibrating screen side plates motivated this investigation to determine the effects of plasma cutting on the surface integrity and hence fatigue performance of mild steel plates. ... -
Machinery maintenance yesterday, today and tomorrow in the manufacturing sector
(International Association of Engineers (IAENG), 2015-07)Maintenance is what is done in machinery to prevent failure or breakdown. In ancient times no proper planning was carried out to do maintenance with the idea behind being simple machines and easy to control. As time ... -
Analysis of a gear train using finite element modelling
(Industrial Engineering and Operations Management Society (IEOM Society), 2015-09)Here the theoretical maximum contact stress is calculated by Hertz equation. Also the finite element analysis of spur gear is done to determine the maximum contact stress by ANSYS 14.5. It was found that the results from ... -
Dimensioning of hybrid solar-battery-grid micro-energy power systems to alleviate domestic power outages in urban Zimbabwe: A reliability-cost approach
(Namibia Energy Institute (NEI), 2015-10)Power outages are rampant in most of Southern African countries due to inadequate electricity generation capacity by the utilities in these countries. This situation results in direct and indirect costs to both the consumers ... -
Stabilisation of a road pavement using Polymeric Stabilisers: Case study of Christian Road, Shamva District, Zimbabwe.
(2015-05)The objective of the research is to design a polymer stabilised road pavement that is capable of preserving the dry strength of the pavement at lower cost of construction, to assess the properties of the polymer the bearing ... -
Site investigation and design of a grade separated intersection in Harare, Zimbabwe
(2015-05)The aim of the paper is to design a grade separated intersection at Seke Road and Cripps/Dieppe Road in Harare, Zimbabwe. During the peak hours on weekdays, congestion and long queues occur at Seke Road and Cripps/Dieppe ... -
Application of Fly ash and Blast Furnace Slag Stabilized Soils in Pavement Design: Case Study Harare – Mutare Road, Zimbabwe
(2015-05)This project is based on the incorporation of fly ash and blast furnace slag from industries and mines for the stabilisation of soils for pavement design and construction. The project aimed at the determination of the ... -
Feasibility study of Biofuels energy exploitation for Southern Africa’s prosperity: Case study Zimbabwe
(2015-10-30)The Southern Africa’s Economy is slowly re-emerging from a protracted period of economic decline (in particular Zimbabwe) due to the raise in exploitation of biofuels energy resources. The energy challenge is especially ... -
The Techno-Economic impact of Petrol- Ethanol Fuel blends on light duty vehicles: Case study- Zimbabwean Petrol Vehicle Fleet.
(2013-05-08)The Government of Zimbabwe has been promoting ethanol as a renewable, homegrown alternative vehicle fuel to gasoline. Ethanol is a form of alcohol that is combustible and can power engines easily. In Zimbabwe, it is made ... -
Investigation of the physical and chemical stability of biodiesel produced from Jatropha Curcas Species in Zimbabwe
(2015-09)Jatropha curcas L. seeds as a raw material for biodiesel production are a rapidly growing interest over the world because of their high oil content, ecological adaptability, and excellent fuel properties. Though there is ... -
Enhancement of Shelf-Life and Oxidative stability of Jatropha curcas Biodiesel in Zimbabwe
(2014-12)Biodiesel is an environment friendly liquid biofuel similar to petro-diesel in terms of fuel quality and combustion characteristics. Increasing environmental concerns, fast depleting petroleum reserves and agriculture based ... -
The role of green manufacturing / cleaner production in obtaining ISO 14001 Certification for Tobbacoo Processing Companies in Zimbabwe.
(ISEM, 2011-09-23)This paper seeks to explore how Cleaner Production/Green Manufacturing can be used as a base for ISO 14001 certification in a tobacco processing environment. A framework is presented for how to implement ISO 14001 in a ... -
Benchmarking Using Environmental Performance Indicators: The Japanese Experience
(Zimbabwe Institution of Engineers, 2003)The creation of wealth through engineering poses many environmental challenges for mankind. Problems of acid rain, smog, diseases related to the use of hazardous substances in both industrialised and industrialising countries ...