Nowadays, because of low energy or power consumption, low heat emission, low cost, the portability, wider application, energy saving bulb are highly used than florescent lamp. For instance, energy bulbs use about half the wattage of fluorescent lighting, about 6 watts of power versus 14 watts of power for a CFL light bulb. For an LED bulb’s lifespan, about 340 kilowatt hours of electricity is used. Fluorescent bulbs used over 60,000 hours (6 bulbs) will use around 840 kilowatt hours of electricity, also The light focuses on where the bulb is pointed rather than bathing the wider area in light. Because of all these advantages makes energy bulb highly applicable in rechargeable lantern design.
This work is on Rechargeable AC lamp which is a rechargeable source of light that is generated from an AC sources and stored in a rechargeable battery which is to be used during power outage using an energy saving bulb as the lighting device. It also serves as immanency sources of light mostly used when there is failure from out public power supply (P.H.C.N).
TABLE OF CONTENT
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
1.2 OBJECTIVE OF THE PROJECT
1.3 SIGNIFICANCE OF THE PROJECT
1.4 LIMITATION OF THE PROJECT
1.5 APPLICATION OF THE PROJECT
1.6 ADVANTAGES OF RECHARGEABLE LANTERN
1.7 PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
2.1 HISTORICAL BACKGROUND OF THE PROJECT
2.2 THEORIES AND MODEL RELEVANT TO THE DESIGN
2.3 SYSTEM COMPONENT DESCRIPTION
CHAPTER THREE
CONSTRUCTION
3.1 DESCRIPTION OF THE SYSTEM BUILDING BLOCKS
3.3 CIRCUIT DIAGRAM
3.4 OPERATION PRINCIPLE OF THE SYSTEM
3.4 CIRCUIT DESCRIPTION
3.5 COMPONENT LIST
3.6 COMPLETE CIRCUIT DIAGRAM OF THE SYSTEM
CHAPTER FOUR
4.0 RESULT ANALYSIS
4.1 CONSTRUCTION PROCEDURE AND TESTING ANALYSIS
4.2 CASING AND PACKAGING
4.3 ASSEMBLING OF SECTIONS
4.4 TESTING OF SYSTEM OPERATION
4.5 INSTALLATION OF THE COMPLETED DESIGN
CHAPTER FIVE
5.1 COST ANALYSIS
5.2 PROBLEMS ENCOUNTERED
5.3 RECOMMENDATION AND CONCLUSION
5.4 REFERENCES
CHAPTER ONE
1.1 INTRODUCTIONA lantern is a portable lighting device or mounted light fixture used to illuminate broad areas. Lanterns may also be used for signaling, as torches, or as general light sources outdoors. Low light level varieties are used for decoration. The term "lantern" is also used more generically to mean a light source, or the enclosure for a light source.
Rechargeable lights are very useful electrical gadgets and are quite popular, too. During a power failure these portable lights are able to instantly illuminate through battery back up and never allow us to stumble in the darkness. Although you will find a variety of them in different shapes and sizes in the market, but building your own emergency light at home can be a totally different experience. It will not only help you to create a quality design but also will acquaint you to the technical aspects of the unit. Besides, you also get an opportunity to customize the circuit as per your own needs.
1.2 OBJECTIVE OF THE PROJECT
The objective of this work is to design a lighting gadget that can be powered directly from ac mains or lamp holder for the purposing of charging the battery which later used whenever there is power outage during the night
1.3 SIGNIFICANCE OF THE PROJECT
This system charges when there is power supply, the energy is stored in a rechargeable battery which is to be used when there is power outage. The lasting of the stored energy depends on the capacity of the rechargeable battery.
1.4 LIMITATION OF THE PROJECT
The device is powered directly to ac mains, and can easily get burnt when high voltage is experienced in the mains if it is not properly regulated.
1.5 APPLICATION OF THE PROJECT
Rechargeable lantern is used in many places such as:
- In school library, hall and labs
- Churches
- Workshop
- Homes, etc
All for the purpose of illuminating of such environment. They highly choose because of its simplicity and safety, that is, it can be charged, hanged, and continues with your adventures into the night.
1.6 ADVANTAGES OF RECHARGEABLE LANTERN
- Lightweight. Compared to a gas lantern, a rechargeable lantern is light as a feather. Gas lanterns are typically made of glass and have metal canisters that add weight that rechargeable lanterns are able to eliminate. The lighter the weight of the lantern the more versatile it can be, whether it be to light up the card table or take it for your bathroom break.
- User-friendly. With the variety of lanterns like liquid fuel, gas, or even candle, a rechargeable lantern is an alternative that offers ease of use. All you have to do it switch it on and light is available. This saves you from having to remember to bring other items on the trip like gas to fuel the lantern or matches to light the candle. If you happen to have kids joining you on a camping trip, spoiler alert: they will more than likely drop a gas lantern and break the glass. Skip to the good part and allow them to carry a rechargeable lantern without worry.
- Safe. Lanterns with flames always come with a small risk of causing a fire, but rechargeable lanterns don’t require a babysitter. By avoiding a kerosene powered lantern, you can eliminate potential fumes.
- Convenient. The right rechargeable camping lantern offers a number of ways to keep it up and running. These can be charged via AC plug
1. 7 PROJECT WORK ORGANISATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to rechargeable lantern using LED. In this chapter, the background, significance, objective limitation and problem of a rechargeable lantern using LED were discussed.
Chapter two is on literature review of rechargeable lantern using LED. In this chapter, all the literature pertaining to this work was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.
Chapter five is on conclusion, recommendation and references.
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