Engineering

Research Papers/Topics in Engineering

DESIGN AND FABRICATION OF 80CM X 70CM X 50CM MOBILE DEEP FREEZER

ABSTRACT  The need for an authentic and reliable report relating to the design and construction of 80cm x 70cm x 50cm mobile deep freezer is inevitable. It should be a top priority of every individual in order to avoid huge expenditure in purchase to foreign ones. Its for this reason that this report is written for the benefit of those who are privilege to design and construct their own deep freezer for used. This report is base on ordinary and advanced level research, in order to ai...

DESIGN AND FABRICATION OF CREEP MATERIAL TESTING EQUIPMENT

ABSTRACT The process involved in the design and fabrication of a creep material testing equipment ranges from carrying out the feasibility studies of the project to the designed and especially of ensuring its functionality.  Since it is used in the testing of failure of material under loading, different engineering principles employed in the design and fabrication includes bending moments and deflection of beam etc.  the main objective of this project is to design a mechanical stru...

DESIGN AND CONSTRUCTION OF A SINGLE PHASE AUTO-TRANSFORMER OF RATING IKVA, 240V/110, 80 12V, 6V

ABSTRACT This project work-up deals on the design and construction of a single phase step down nations fermor, with raking IKVA, 240V/11OV, 80V 12U, 6V. It is a multi-circuit transformer that has one input as the primary and tappins to produce the output (secondary). It is considered as a single coil in series with the supply and a common coil to the head. It is experimentally done using flat metal shocks of cast steel to form the “E” and “I” shaped laminations and coils of various ...

THE COMPARATIVE ANALYSIS OF THE STRENGTH OF CONCRETE MADE FROM VARIOUS AGGREGATE

ABSTRACTThe work has gone a long way in determining strength of concrete made of various aggregates such as granites stone, black gravel, washed gravel and surface gravel.Some factors such as porosity of the  aggregate temperature coursing lose of water plate form for mixing of concrete mix affect the workability and eventually the strength of concrete.This project work consist of using hydraulic machine to carryout the compressive test of the strength of concrete made of the earlier men...

ANALYSIS AND DESIGN OF A RETAINING WALL

INTRODUCTIONRetaining walls are structures used  in providing stability for earth or materials where conditions dis allow the materials from summing its nature al slope or stabilityThere are many factors affecting or militating against the stability of retaining walls. These includes the level of water table behind the wall, size of the base of the wall and nature of the soil retainedUnder these effects of he nature of soil,. we have the angle of internal content between the particles, t...

COMPARATIVE ANALYSIS OF THE STRENGTH OF CONCRETE MADE FROM VARIOUS AGGREGATE

INTRODUCTIONThis work was obligated to present in one. The fundamental and practical information in the filed of the comparative analysis of the strength of concrete made from various aggregate which may be useful to people involve in civil and structural engineering and particularly, those that found pleasure in the design and related structure.Due to high cost of sand in the market the  comparative analysis of strength of concrete  made from various aggregate play an important rol...

ENGINEERING DRAWING IN TERMS OF COMMUNICATION

INTRODUCTIONCommunication means extending information form one person to another in a way in which it can be understood. Information and ideas in technical and scientific fields can very often be more easily communicated through sketching or instrument drawing and blueprint reading. Drawing involves describing the shape and size of an object. CHAPTER ONE PreamblesTypes of Engineering DrawingsCHAPTER TWO2.1 STAGES IN THE DEVELOPMENT OF A NEW PRODUCT 2.2 THE DRAWING OFFICE&nb...

MACHINE COMPONENT DESIGN

DEFINITION OF A KEY  A key is a piece of steel in inserted between the shaft and a hub of the pulley or the gear, mainly to that power. Key are always inserted parallet to the shaft axis. They are need as temporally fastening and are subjected to considerable cursing and shearing stresses.  A key - way in a slut or recess in the shaft and hub of a pulley to accommodate a key. KEYS A key is a machine member employed at the interface of a pair of mating male and female circ...

MACHINE TOOL CONTROL

INTRODUCTION  The purpose of a control system is to produce a desired output. This output is usually specified by a command input, and is often a function of time. For simple applications in well structured situations, to control, and the controller must have the capability of reacting to disturbance, changes in its environment, and new input commands. The keys element that allows a control system to do this is feedback, which is the process by which a system’s output is used to influ...

EVALUATION OF THE EFFECTS OF ANTHROPOENIC ACTIVITIES AND DOMESTIC WASTE ON SURFACE WATER QUALITY (A CASE STUDY OF EKULU RIVER, ENUGU).

ABSTRACTThe microbiological and organic pollutants characteristics of umuosoko stream in ikwuano local government area, Enugu state, Nigeria were carried out. Twenty water samples were collected from four different parts of the river.  The pour plate technique was employed for the isolation of micro-organisms. Colonial morphology, Gram staining and biochemical tests were used for identification and characterization. The statistical analyses used were analysis of variance and standard dev...

EVALUATION OF THE EFFECTS OF FLOODING ON THREE VARIETIES OF RICE (A CASE STUDY OF ABAKALIKI, EBONYI STATE)

ABSTRACTFlooding has been described as one of the most important environmental factors determining the distribution of salt marsh plants. We studied the impact of five water levels on the germination and establishment of the invasive cord-grass spartina deniflora. Plant house experiment was carried out to determine the effects of time and depth of flooding on the survival and growth of rice. Data showed that time and depth of flooding had significant effects on the survival and growth of rice...

ASSESSMENT OF CARBON MONOXIDE (CO) LEVEL IN ENUGU METROPOLIS MONITORING INDUSTRIAL AND RESIDENTIAL AREA

ABSTRACTAir pollutions pollutant showed that the extent of spreading depends on the motor vehicle traffic population of the area. This pollution strongly generated through combustion of fossil fuels presents difficult environmental challenge to societies as it could degrade the environment and affect human health and quality of life. Vehicular emissions are major contributors to air pollution in urban areas as they contain harmful gases. The levels of carbon monoxide has been investigated in ...

DESIGN AND CONSTRUCTION OF 1000VA POWER INVERTER SYSTEM

ABSTRACT As the name of the project implies “Power Inverter”, is an electronics system that converts DC Energy (voltage) to an AC energy.  The major aim of this project is to design and construct a 1000VA Power inverter that is capable of powering loads of equivalent ratings, in the absence of power supply from NEPA or Generator. The system (power inverter) consists of the AC mains sensor section, Relay/change over section, Battery charger section, oscillator section, Driver sectio...

DESIGN AND CONSTRUCTION OF AUTOMATIC EMERGENCY LIGHT

ABSTRACTAs the name of the project implies “Automatic Emergency Light” is an electronic system that can provide light during emergency situations i.e when mains (NEPA) supply fails.  This system can provide enough light with full brightness in a given room or office.   The system makes use of white light emitting diodes for the lightings.  It is automatic in operation, in the sense that it can switch itself off when the battery charges full. Automatic Emergency light compr...

DESIGN AND CONSTRUCTION OF PUBLIC ADDRESS SYSTEM

INTRODUCTIONA public address system is an electronics sound amplification and distribution system with a microphone, amplifier and loud speaker used to allow a person to address a large public. The public address system consists of three main parts namely, the microphone (input transducer), amplifier and the loudspeaker (output transducer).The microphone picks up the sound and convert it to electronic signal in milivolts and this is fed to the amplifier for amplification. In this project, a d...


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