Research Papers/Topics in Mechanical Engineering

APPLICATION OF TAGUCHI APPROACH IN THE OPTIMIZATION OF THE MECHANICAL PROPERTIES OF SNAIL-SHELL-FILLER/CHICKEN-FEATHER-FIBRE POLYMER BASED HYBRID COMPOSITE

Many studies are on-going to optimize the properties of composites, this is because composite have found application in different industries due to their advantage of light weight. Scientists have turned their attention to using natural occurring materials for the development of novel materials. Animal waste is playing an important part in this area of application as using it is not only providing benign environmental solution but solving engineering challen...

Renewable Energy in Nigeria: A Review

ABSTRACTOne of the most important resources of a nation is energy. The significance of energy definitely cannot be overemphasized as it is immensely utilized in our everyday activities as a very germane requirement for survival and robust lifestyle. The amount of energy availability and its usage in a country measures the level of industrialization. Several devices including machines, electronics, household electrical appliances and other domestic equipment and machines, industrial prod...

DESIGN AND CONSTRUCTION OF A MELON DEHUSKING MACHINE

Abstract: Melon dehusking is often associated with lots of manual labour and stresses. In order to reduce the stress and boredom usually involved in manual dehusking of melon process, a melon dehusking and separation machine was designed, constructed and tested for operation as presented in this paper. The melon dehusking machine operates on the principle of attrition/friction as opposed to the use of an impact force in the dehusking chamber for shelling of melon seeds. This pr...

Design and costruction of bicycle ergometer

CHAPTER ONEINTRODUCTION1.1 BACKGROUND OF THE STUDY: trolling body weight, reducing the chances of heart diseases, reducing the risk of diabetes and some other chronic diseases by improving the functions of the heart, lungs and improving the biomechanical system of the body. Aside surgeryand medication, several methods have been proposed for the prevention and treatment of heart conditions. One of such methods is the use of regulated and supervised exercise as therapy both for prevention of he...

DESIGN OF 2TONNES AUTOMATED HYDRAULIC JACK

ABSTRACTThe design of 2 tones automated hydraulic jack was carried out using the basic principles of machine design and analysis. The hydraulic jack was designed with a 204watts wiper motor with the output lever having a torque of 30Nm.  The effective diameters of ram and plunger pistons were found to be 12mm and 6mm respectively, when the load lifted was 2000N with mechanical advantage being 3.4. The working stress was 21MPa when the effort applied at the handle by the lever w...

SUSTAINABLE E-LEARNING FOR NIGERIAN EDUCATIONAL DEVELOPMENT

ABSTRACTAs Nigeria aims at optimizing the implementation of the E-learning programme in tertiary institutions, this paper discusses the ways by which the implemented E-learning can be sustained. The discussion was carried out using data derived from students, teaching staff and telecommunication engineers in Nigeria using Owerri metropolis as a case study. Data analysis was carried out and analyzed using excel and Minitab. Conclusions and recommendations were drawn for effective imp...

DEVELOPMENT OF A SOLAR POWERED CAR

ABSTRACT: This project work is on the development of a solar powered car. It involves the design and fabrication of a solar powered car with a carrying capacity of two and a maximum speed of 30 km/hr, which runs entirely on a stand-alone solar system. The car is a unique prototype sedan car. It is designed with dimensions of 3 meters’ x 1.6 meters'. The maximum load carrying capacity of the vehicle is 700 kg and it requires a driving force of about 4.3 kW. The solar car uses a clean engine ...

Maintenance, supervision and inspection at a water treatment plant.

Clean and potable water is one of the basic infrastructures any responsible government needs to provide for its people.I was part of a team of competent engineers that carried out inspection, repair and maintenance of facilities at a water treatment plant.This is a paper work for different maintenance and supervision activities carried out at the water treatment plant. I employed my engineering skills in inspection, maintenance and supervision of the machines, making sure tha...

Water Based Metalworking Fluids: Proper Mixing Practices

Water based metalworking fluids must be properly mixed and maintained in the proper concentration range to maximize performance. When fluid concentrate and water are mixed to charge the machine’s fluid reservoir or central system, the fluid concentration must be tested to insure that the starting concentration is correct. The concentration can be measured with a refractometer, test strips or a chemical titration method. Concentration may be expressed as a percentage or as a ratio...

A TERM PAPER ON DIRECT ENERGY CONVERTING DEVICES AND SYSTEMS

Fossil fuels (coal, fuel oil and natural gas) still meet the major part of our energy demand and are getting fast depleted. Moreover, there are serious pollution hazards like greenhouse effect and global warming which occur due to fossil fuel burning. The use of nuclear power too has its own problems and nuclear fusion is yet to be realized in practice. We have thus been forced to look for non-conventional power generation systems so as to reduce fossil fuel consumption by increasing the conv...

A HYBRID HISTOGRAM IN-MOTION MAPPING MODEL FOR AUTONOMOUS MOBILE ROBOT NAVIGATION AND OBSTACLE AVOIDANCE

In this paper, the simplicity of the convectional Histogram in-motion mapping for obstacle avoidance technique which is now modified and modeled to Hybrid histogram in-motion mapping (HHIM) for autonomous mobile robot navigation and obstacle avoidance was primarily developed by AKWARA UCHENNA C. to solve robot navigation problems for completely unknown environment particularly for a static wave concave shaped obstacle. The developed model is to address the problem associated with a static wav...

VELOCITY HEAT CONDUCTIVITY (VHC) MODEL FOR TWO AUTONOMOUS MOBILE ROBOTS IN ENERGY WORKSPACE

In this paper, the research study on velocity heat conductivity (VHC) model for two autonomous mobile robots in energy workspace is adopted. The model is applied to solve and address; the conversion of heat energy conductivity into kinetic (internal) energy conductivity of the robots, to obtain the velocity energy placement and to derive a velocity heat conductivity mathematical model for algorithm simulation drive using specific heat capacity and thermal diffusivity response in energy worksp...

A Virtual Force Vibration Concept for four Resonances Autonomous Mobile Robot Navigation

In this paper, the research on virtual force vibration concept for four resonance autonomous mobile robots navigation is welcome. This concept is adopted and applied to solve and address; the behaviour of four autonomous mobile robots without initial force of vibration, the amplitude frequency of the vibrating medium, the effect of inapplicable resonance, the wavelength of vibration and the vibrating amplitude length of the four mobile robots. Robot 1 is set into motion at an ampli...

A VIRTUAL THERMODYNAMIC TEMPERATURE CONCEPT IN 2D OBSTACLE ENVIRONMENT FOR AUTONOMOUS MOBILE ROBOT

 In this paper, the virtual thermodynamic temperature concept (VTTC) proposed for 2D obstacle environment for autonomous mobile robot is welcome. The concept emphasis on the heat transfer and temperature measurement of an obstacle and robot workspace with reference to the virtual target concept (VTC) for Lengthy, Concave and Wave concave shaped obstacle. This method is used to address the heat transfer (internal) and the temperature incremental area that occur in 2D workspace for autonomous ...

A TERMPAPER ON STRESS CONCENTRATION

TABLE OF CONTENTStress Concentration -Causes-Prevention-Examples-Determination of the Maximum Stress at the Crack Tip Stress Concentration Factor-Determination of Stress Concentration Factor -Stress Concentration factor for cracks-Stress Concentration factor CalculationsTypes of Loading

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