Design And Construction Of A 6V Rechargeable DC Fan

ABSTRACT

This work is on rechargeable standing fan. The project involves using mains power supply to recharge and power standing fan and at the same time powers a torch light and charge cell phones. Rechargeable standing fan, charges with mains power supply, then the charged battery is used to run the fan whenever there is power outage. A dc motor serve as the fan which operates with 6v supply, which is an electrical machine that converts direct current electrical energy into mechanical energy.

TABLE OF CONTENTS

 TITLE PAGE

APPROVAL PAGE

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

TABLE OF CONTENT

CHAPTER ONE

• INTRODUCTION
• OBJECTIVE OF THE PROJECT
• SIGNIFICANCE OF THE PROJECT
• LIMITATION OF THE PROJECT
• APPLICATION OF THE PROJECT
• SCOPE OF THE PROJECT
• PROJECT ORGANIZATION

CHAPTER TWO

LITERATURE REVIEW

2.0      LITERATURE REVIEW

2.1      HISTORICAL BACKGROUND OF ELECTRIC FANS

2.2     REVIEW OF RECHARGEABLE BATTERY

2.3     COMMON RECHARGEABLE BATTERY TYPES

2.4      OVERVIEW OF A DC MOTOR

CHAPTER THREE

3.0      DESIGN  AND  CONSTRUCTION  METHODOLOGY

3.1      BLOCK DIAGRAM OF THE SYSTEM

3.2      DESCRIPTION OF PARTS OF THE BLOCK

3.3      CONSTRUCTION PROCEDURE

3.7     SYSTEM OPERATION

CHAPTER FOUR

RESULT ANALYSIS

4.1   CONSTRUCTION PROCEDURE AND TESTING ANALYSIS
4.2   ASSEMBLING OF SECTIONS
4.3   TESTING OF SYSTEM OPERATION
4.4   TROUBLE SHOOTING METHOD
4.5   HOW TO FIX A FAN THAT HUMS

CHAPTER FIVE

• 0 CONCLUSIONS, RECOMMENDATION AND REFERENCES
• CONCLUSIONS
• RECOMMENDATION

5.2     REFERENCES

CHAPTER ONE

1.0                                                        INTRODUCTION

The electric fan was one of the most important electric inventions of all time. The fan is a building block of other more advanced technologies. Fans are necessary in computers, lasers, large LED lights, petrol and electric automobiles, the space station and countless other things. The fan as used in this  work allows humans to build giant or underground buildings. It would be hard to imagine a world without the electric fan!

The electric fan has blades similar to a water or steam turbine. A DC drives a rotating shaft.  Sizes of fans have gotten much smaller and lighter over the years.  As engineers improved the electric motor and blade design they figured out how to get more performance out of a design that uses less copper and steel.

Rechargeable DC fan can help maintain humidity levels, protect various rooms of your house from stagnant air, and even help you sleep better at night. And that’s just the beginning. The blades force air either in or out of the room you’re trying to cool or ventilate.

1.1                                             OBJECTIVE OF THE PROJECT

The objective of the work is to design and construct rechargeable standing fan with an inbuilt cell phone charging system and torch light which is powered by rechargeable battery when there is power outage. In this work, a 6v rechargeable battery is used to power the whole system.

1.3                                         SIGNIFICANCE OF THE PROJCET

After knowing in detail what a rechargeable standing fan is and how different useful it is to make appliances work at residential and industrial levels students should also know the advantages.

• Also use of rechargeable battery energy helps in saving money many people have started using solar based devices
• Rechargeable standing fan helps people who use limited amount of electricity.
• A rechargeable standing fan is more environmentally friendly.
• Though initially the installation may be costlier, in the long term it would turn out to be cheaper because it does not use power from the utility grid and may provide savings up to 30 percent on air conditioning costs.
• A cordless appliance offers much more mobility compared to conventional fan solar standing fans are the best way and they are better than the normal electric ones. Also their maintenance does not cost much money.

1.3                                           LIMITATION OF THE PROJECT

• Initially you need to shell out a lot of money for buying a battery, fan (DC motor).
• It will work effectively and produce direct current only when the battery is fully charge.

1.4                                    APPLICATION OF THE PROJECT

1. Cool Down your Room (and yourself)

Perfect for more moderate climates, electric fans are a very inexpensive way to cool almost any room in your home. They can also be quite refreshing, as they circulate cool air throughout the room.

Portable air circulators are some of the best options for this type of use, as they are easy to move from room to room. Be sure to pay attention to the size of the room you want to cool, as some kinds work better in large rooms than others.

2. Deal with smokers

Whether you’re dealing with a small kitchen mishap or your cigar-smoke, an electric fan can be a savior. Use your pedestal or table fan  to suck up the smoky air and blow it out an open window or door. Pointed in the right direction, it can act as an exhaust.

Once the room is cleared, turn it around to blow fresh air back into the room. You don’t even need smoke in the house for this trick – it works for any room that needs ventilating.

3. Sleep easier

It can be especially difficult to sleep on a warm summer night. Typically, you have to choose between the noisy air conditioner or the uncomfortable heat. A bedroom fan can be a great alternative, as it operates much quieter than an air conditioning unit and it significantly lowers room temperature.

In addition, the cool breeze can be relaxing while you try to fall asleep. Pedestal fans are usually the best type for the bedroom and the variety of remote controlled options available make these a great addition to your home. Ceiling fans are perfect for moderate bedroom cooling too, and installed over the bed, they’re quite effective.

4. Keep humidity in check

An electric air circulator can do more than just cool. Because they ventilate the room, maintaining proper humidty levels is easy. Too much humidity can damage your home. Blowing fresh air into the room can keep the humidity levels down in your home and keep indoor areas well-ventilated. The constant circulation of air helps keep the air in your home clean as well as dry. It’s a win-win all the way around.

5. Protect your bathroom

Keep bathroom moisture levels in check with an exhaust fan. Installing an exhaust fan in the bathroom protects the interior and keeps it looking new. It also helps keep paint from peeling, doors from warping and mold from accumulating on bathroom surfaces too.

The added circulation keeps the air dryer, and helps remove bathroom moisture generated from a hot shower. These bathroom exhaust fans  help control bathroom odors and room stuffiness too.

6. Accentuate your room

A solar fan can be so much more than a functional appliance; it can also add decorative charm to your living environment. Decorative fans come in a variety of shapes and sizes and accentuate just about any room in your home. The color variety can certainly add a refreshing change of pace from the traditional models. Best of all, they work just as well as standard fans.

1.5                                                 SCOPE OF THE PROJECT

The project involves using mains power supply to recharge power standing fan. Rechargeable standing fan, charges with mains power supply, then the charged battery is used to run the fan via an inverter when there is power outage. This power can then be used for fan.

The specific type of DC motor used in this fans is a brushless DC motor, (also called synchronous DC motor). A DC motor uses an internal array of magnets of opposing polarity.

This creates a magnetic field that creates the torque required to rotate the motor’s rotor. This process requires less electrical energy, translating into a 70% or greater reduction in power consumption
over standard AC motors.

1.6                                               BENEFITS OF DC MOTORS

This energy efficient process keeps the motor cool, effectively improving the fan’s life span. Noise is virtually eliminated.

1.7                                        PROJECT WORK ORGANIZATION

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 works is on the introduction to rechargeable dc fan. In this chapter, the background, significance, objective limitation and problem of rechargeable dc fan were discussed.

Chapter two is on literature review of rechargeable dc fan. 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.