CHAPTER ONE INTRODUCTION The quest to satisfy our need for stable power supply in Nigeria has driven most Nigerians into an ardent search for alternative renewable power sources. One of such major renewable power source in use is solar energy, which is energy obtained from the radiation of the sun. To obtain electrical power from the sun, four key... Continue Reading
ABSTRACT The practical importance of a battery charging unit in today’s world cannot be over emphasized. This is so since these batteries or accumulators are immensely needed by automobiles and in science laboratories. This thesis describes the methodical approach to the design and construction of any battery changer. However the procedure... Continue Reading
ABSTRACT It has become inevitable that there would be communication and due to the inherent limitation of the human voice, the public address system came to being. A public addressP.A SYSTEMor ”“ is an electronic amplific ,amplifier and loudspeakers, used to reinforce a given... Continue Reading
ABSTRACT This project review the conformability of uninterrupted power supply through the use of power inverter, However, inverter is of different categories base on power rating such as 1KVA, 1.5KVA, 5KVA etc. Moreover, since the invention of inverter, some problem associated with alternative power supply had been drastically reduced. Meanwhile,... Continue Reading
Automatic water level controller for both overhead and underground tank is designed to monitor the level of water in a tank. It displays the level of water and when it is at the lowest level; a pump is activated automatically to refill the tank. When the tank is filled to its maximum capacity, the pump is automatically de-energized. Several... Continue Reading
ABSTRACT An audio AMP is basically a system which is used as a means of increasing the level of sound or audio signals for maximum use. A public address system consists basically of microphone, Amplifier and speaker(s) to facilitate the communication to intelligible speech to groups of people... Continue Reading
ABSTRACT This project work describes the construction and designing of 12volt car battery charger with USB port for charging mobile phones. The charging process is focus more on 12volt lead car batteries commonly used in vehicles. This design was done by using I.C LM7812 and LM7806 with transformer of 230 volt and series of other... Continue Reading
Abstrac t In this work, a 2.8kva alternator was coupled to a 4 H.P dc motor acting as a prime mover to produce a fuel-less generator. The coupling was done using two crankshaft pulleys to match the speed of the alternator to that of the dc motor. Two 24v dc... Continue Reading
Abstract This paper presents an innovative access control system, based on human detection and path analysis, to reduce false automatic door system actions while increasing the added values for security applications. The proposed system will first ask the visitor for a password... Continue Reading
CHAPTER ONE INTRODUCTION Water is an indispensable and inevitable substance to all living things due to its usability and high priority among other substance and materials. Provision of large volume of waters essential due to its significant purpose, which therefore called for a means by which sufficient, and good quality water can be obtained.... Continue Reading
ABSTRACT In the world today, the use of power supply in electronics equipment and gadgets has increased and it is still increasing. These power supplies are not stable as required by these electronics. This arise the need for the power stabilization as to overcome this problem This project handles this problem very well. Some recommendations were... Continue Reading
ABSTRACT Cell phones need electric sources to charge their batteries in order to work, but there are people in developing and third world countries that find it hard to access electric sources.In an attempt to provide an alternative means of charging to those unfortunate areas in third world and developing countries, a solar powered cell phone... Continue Reading
CHAPTER ONE INTRODUCTION 1.1 Background Information Electricity is a general term comprising of a variety of phenomena resulting from the presence and flow of electric charge. These include many phenomena, such as lightning,... Continue Reading
Abstract The project is a construction of inverter using solar panel and its operation. The problems of power lead to the aims and construction of the inverter. This project comprises of four chapters, chapter one deal with the introduction and background of the project. Chapter review of related literature of the project, chapter three... Continue Reading
ABSTRACT This inverter is designed to convert ac power from higher capacity dc batteries to A.C voltage (power) for systems that use ac only. It uses 24v battery D.C times 2, which is converted by the MOSFET to A.C. it is used I.C. with the model number SG3525 where the four MOSFET is connected to it. It consists winding which enable to determine... Continue Reading
ABSTRACT Metal detectors are electronics sensors that indicate the presence of metallic object without making physical contact with object. They are effective and useful security tools employed in strategic places such as airport, bank, stadiums, government houses and also in production industries to detect presence of metallic object on person... Continue Reading
CHAPTER ONE INTRODUCTION 1.1 BACKGROUND Heart beat rate means the number of heartbeats per unit time, usually expressed as beats per minute (bpm). The human heart pounds to pump oxygen rich blood to the muscles and carry cell waste products away from the tissues. Heartbeat rate can vary according to the... Continue Reading
ABSTRACT The main aim of any electric power supply in the world is to provide uninterrupted power supply at all times to all its consumers. Although, in developing countries, the electric power generated to meet the demands of the growing consumers of electricity is insufficient, hence power instability and outage. Power instability or outage in... Continue Reading
ABSTRACT The uninterruptible power supply (UPS) is design to help in the offices, workshops and house hold appliances, due to the unstable power supply being supplied by (NEPA) presently known as Power Holding Company of Nigeria (PHCN) usually supply to us. With the help of the “UPS” we don’t need to depend much on PHCN it is stress free... Continue Reading
ABSTRACT This project the design an construction of fire alarm was carried out with deep intensive and extensive research work my aim and objective in the price of work is to produce a standard device or electronics that will inform the security about a fire outbreak in the company or house for a quick reaction/action. In this project I shade... Continue Reading
ABSTRACT Man has been so used to electricity that he cannot do without it. The absence of electricity causes a lot of sadness in our daily lives. Due to this reason I decided to work on a by rechargeable lamp as my project. The project is to see how one can construct a source of high without really generating is from an A.C source. I decided to... Continue Reading
INTRODUCTION A 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... Continue Reading
CONSTRUCTION OF AUTOMATIC WATER LEVEL CONTROLLER FOR BOTH OVERHEAD AND UNDERGROUND TANKS ABSTRACT Automatic water level controller for both overhead and underground tank is designed to monitor the level of water in a tank. It displays the level of water and when it is at the lowest level; a pump is activated automatically to refill the tank. When... Continue Reading
ABSTRACT This work investigates and evaluates local liquid dielectric for insulation of power transformers. Considering the importance of transformer insulation the investigation is borne out of the need to develop the capacity for local production of transformer dielectric. Natural esters of vegetables origin have been found to have the suitable... Continue Reading
ABSTRACT Cell phones need electric sources to charge their batteries in order to work, but there are people in developing and third world countries that find it hard to access electric sources.In an attempt to provide an alternative means of charging to those unfortunate areas in third world and developing countries, a solar powered cellphone... Continue Reading