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 section, out...
ABSTRACT Air 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...
ABSTRACT Flooding 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 ric...
ABSTRACT The 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 devia...
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 influence ...
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 circular cross-secti...
INTRODUCTION Communication 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 Preambles Types of Engineering Drawings CHAPTER TWO 2.1STAGES IN THE DEVELOPMENT OF A NEW PRODUCT 2.2THE DRAWING OFFICE 2.3PRINT ...
INTRODUCTION This 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 role in c...
INTRODUCTION Retaining 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, the ...
ABSTRACT The 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 ment...
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 tu...
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 structure tha...
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 aid easy r...
ABSTRACT This work is aimed at the removal of hazardous gases and dust particles, air channeling etc. This work is aimed at achieving industrial waste control therein safe – guarding the immediate environment. Chapter one accounts for the introduction of the project. Chapter two involves literature review in the origin, types and alternative device is compared. Chapter three discussed the design analysis of the project. In chapter four, the sequence of operation and material selection f...
ABSTRACT. The sole aim of this research work is to produce a high quality of bar soaps and compare with detergent. The major aspects of this projects deals with quality control processes in the production of a high quality bar soaps. In soap production, cold process was used and this was found out to be the most effective means of production considering several factors. In the production of bar soaps, palm kernel oil was used instead of fallow or grease. This is because palm kernel has a low...