Engineering

Research Papers/Topics in Engineering

Exergetic Efficiency of Passive Solar Air Heater with Phase Change Energy Storage Material

ABSTRACT  Energy and exergy analysis of solar air heater with phase change material energy storage is considered in this research work. Energy and exergy models for component systems like flat plate solar collector and phase change material in one-dimensional heat conduction in a cylindrical pipe, for storing periods were obtained. Exergy analysis, which is based on the second law of thermodynamics, and energy analysis, which is based on first law, was applied to improve system efficiency. M...

Bioremediation of Hydrocarbon Contaminated Soil using Selected Organic Wastes

ABSTRACT Contamination of existing and potential agricultural lands is a major problem associated with the processing and distribution of crude and refined petroleum products in many oil producing countries like Nigeria. Hydrocarbon contaminants in soil are potentially phytotoxic to plants and interfere with plant establishment and growth as well as other land uses. The problems of pollution have led to the exploration of many remedial approaches to effect the clean-up of the polluted soils....

Fracture Mechanics of Glass Fibre Reinforced Polyester Composites (Gfrp) Subjected to Impact Load

ABSTRACT Glass mat reinforcement, which can be easily shattered, is widely used across the world in military, automobile, civil, railway and electronic engineering among others. This research investigated the fracture mechanics of reinforced polyester composites on exposure to sudden impact force, using experimental and analytical methods based on impact and Linear Elastic Fracture Mechanics (LEFM) test procedures, to study the stress distribution around crack tip and zone. Plies of randomly...

Levelized cost of Electricity (LCOE) for Solar Building Integrated Photovoltaic (BIPV) System

Abstract The utilization of solar energy is most concerned source in energy sector nowadays. The building integrated photovoltaic solar panels are increasingly constructed in dense urban areas because they brought  many advantages to the society along with energy saving features. However, at the same time, they raise tensions in capital investments and overall returns. In this project, the BIPV systemis integrated on a multi-stair building consists of 6 floors, this building is located in...

Modelling of Adsorption Efficiency for the Removal of Lead and Copper from Waste Water

Abstract  The focus of this research work is to derive a model that will be used to obtain the adsorption efficiency of an adsorbent for the removal of lead and copper from waste water. To date, the prevalence of adsorption separation remains an aesthetic attention and consideration abroad the nations owning to its low cost, simplicity of design, ease of operation, insensitivity to toxic substances and complete removal of pollutants even from solutions. The data points for this work were col...

Use of the Swat Model to Evaluate the Impact of Land-Use Change on Ebonyi River Watershed

ABSTRACT SWAT was applied a large watershed (3,765km2 ) in south-eastern Nigeria, to predict streamflow and sediment discharge from the Ebonyi River Watershed using globally available data downloaded from the internet. Digital elevation, land-use and soil maps of the study area from global databases and historical weather data measured locally were used. SWAT model was setup to use the MapWindow GIS interface. The model predicted an average daily streamflow and sediment discharge of 24.32m3 ...

Influence of Saliency Ratio (Xd, Xq) on the Performance of Three-Phase Synchronous Reluctance Generators.

ABSTRACT  In the study of the influence of saliency ratio (L /L ) on the performance of a synchronous reluctance generator (SRG), this project investigates two typical generator rotor designs: Generator with cage and without cage otherwise known as cage and cageless rotor respectively. A special attention had been paid to the possible rotor geometries of synchronous reluctance machine, SRM. This ratio can directly influence our insight into the machine’s potential abilities. From the studi...

Robotic Manipulator using an Inductive Sensor

This project involves the use of an inductive sensor to control a robotic arm system. The signals generated in the induction coil will help in controlling the manipulator to perform certain gripping and grabbing actions. Also, the report describes the method used to acquire and process these induced signals before they are sent (induced signals) to the manipulator through the help of two programmed microcontrollers.

INVESTIGATION OF THE STRENGTH PROPERTIES OF LATERITIC SOIL STABILIZED WITH TERMITE MOULD SOIL

TABLE OF CONTENT certification_ I Declaration_ Ii Dedication_ Iii AcknowledgementIv Table Of ContentV List Of FiguresVii List Of TablesViii AbstractViii CHAPTER ONE:INTRODUCTION_ 1 1.1  Background of Study_ 1 1.2  Objective of Study_ 4 1.3  Significance of Study_ 5 1.4  Scope of Study_ 5 CHAPTER TWO: LITERAURE REVIEW_ 6 2.1 General Overview of Construction Techniques.6 2.2  Laterite_ 7 2.2.1  Engineering Characteristics Of Laterites_ 9 2.2.2  Laterite Classification_ 12 2.3  Termites...

Integrated Solar and Hydraulic Jump Enhanced Waste Stabilization Pond

ABSTRACT  This study on the integrated solar and hydraulic jump enhanced waste stabilization pond (ISHJEWSP) is aimed at determining the effect of variations in solar radiation, hydraulic jump, hydro-kinematic factors and pond geometry, on the treatment efficiency of wastewater in the ISHJEWSP. An equation to account for these effects was derived, calibrated and verified. An empirical regression model for the prediction of the Biochemical Oxygen Demand (BOD5) in the ISHJEWSP for sewage treat...

Effects of Stabilization on the Performance of Deltaic Lateritic Soils as a Road Pavement Material

Abstract Deltaic lateritic soils of the Niger delta region of Nigeria differ markedly fiom the other lateritic soils because of some mode of formation related peculiarities. As the most widely used soil materials for road earthworks in the entire region, their continual exploitation based on properties of the more matured and widely studied lateritic soils of the hinterland has met with mixed degrees of failure and success. In this study, samples of this soil material fiom different locations...

Potentials of Processed Termite as a Stabilizing Agent

ABSTRACT Clay soil posses a great threat causes problem on civil engineering structures due to its tendency to swell when it is in contact with water and shrinks when they dry out. Stabilization using chemical admixtures is the oldest and popular method of soil improvement. In this study, an investigation was conducted to explore the possibility of using processed termite mound as a stabilizing admixture to improve clay soils. This investigation involves the determination of the swelling pote...

Design and Construction of Enhanced Security Door

ABSTRACT  Security is one thing human should not joke with, especially in today’s world where crime is at a higher rate. One of the ways of providing security is the introduction of security doors in houses, companies, offices and warehouses. Security doors may prevent or control entry or exit, or they may be merely decorative. Larger doors can be used for a whole building, such as a castle or fortified town, or the actual doors that block entry through the gatehouse. Today many doors are ...

Overview of Digitally Controlled Light Dimmer

ABSTRACT     A digitally controlled light dimmer circuit is based on the principle of power control using thyristor. The switch enables light from an electric bulb to be raised from full brilliance down or up to a high range of luminance.       Owning to its construction, adequate conservation of energy is achieved.  The circuit is made in various patterns depending on the manufacturer. Some have a rotary knob; some have milled edged control while others have a depressing switch or side...

Optimum Buckling Response Model of Grp Composites

ABSTRACT Relevant literature for the modeling and analysis of failure of GRP composites were reviewed. Samples of GRP composites were prepared by hand-lay up. Composites samples were subjected to compressive tests using a tensometer. Mechanical characteristics, such as modulus of elasticity; compressive strength, proportionality limit, elastic limit and critical strain of composites were evaluated from compression tests results. It was found that the compressive strength of all the samples is...


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