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TITLE PAGE

 

BY

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--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---

DECEMBER,2018

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APPROVAL PAGE

This is to certify that the research work, "design and costing of a 1kw wind turbine power system in port harcourt" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.

By
---                                                     . ---
Supervisor                                                  Head of Department.
Signature……………….                           Signature……………….        

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External Invigilator

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DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.

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ACKNOWLEDGEMENT

The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.

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Wind power has been a valuable resource for centuries, and in recent years this resource has become even more useful as a source for electrical power. It has many advantages over traditional fossil fuel power sources, releasing no greenhouse gasses during energy production and having very low impact on the local environment while doing so.
In recent history, there has been a significant increase in the search for alternative sources of energy. Wind energy is one of the cleanest sources of energy today. The wind mill works on the principle of converting kinetic energy of the wind to mechanical energy using wind turbine. Wind turbines are made to rotate with the blowing wind and accordingly electricity been generated. This work is based on the production and costing of a 1KVA power supply using wind turbine.

 

 

 

 

 

 

 

TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
1.0      INTRODUCTION
1.1      BACKGROUND OF THE PROJECT

• PROBLEM STATEMENT
• OBJECTIVE OF THE PROJECT
• SCOPE OF THE PROJECT
• SIGNIFICANCE OF THE PROJECT
• LIMITATION OF THE PROJECT
• APPLICATION OF THE PROJECT
• TYPES OF WIND TURBINE

CHAPTER TWO

2.0      LITERATURE REVIEW
2.1      REVIEW OF RENEWABLE ENERGY
2.3     THE REGULATORY FRAMEWORK FOR RENEWABLE PROJECTS IN NIGERIA
2.3     RENEWABLE ENERGY IN SUB-SAHARAN AFRICA
2.4    BARRIERS TO POLICY ADOPTION IN SUB-SAHARAN AFRICA
2.5    BARRIERS TO RENEWABLE ENERGY POLICY IN NIGERIAN

CHAPTER THREE
3.0     CONSTRUCTION METHODOLOGY
3.1      BASICS OF THE SYSTEM
3.2     CONVERTER CIRCUITS
3.3    SETUP DIAGRAM
CHAPTER FOUR

•      WIND VARIABILITY AND TURBINE POWER
• ENERGY ROPDUCTION TERMS
• TIP-SPEED RATIO
• PERFORMANCE OVER RANGE OF TIP SPEED RATIOS
• ADVANTAGES OF WIND ENERGY
• DISADVANTAGES OF WIND MILL

CHAPTER FIVE

• CONCLUSION
• RECOMMENDATION
• FUTURE WORK

REFERENCES

 

CHAPTER ONE
1.1                                                        INTRODUCTION
As a result of over a millennium of windmill development and modern engineering, today's wind turbines are manufactured in a wide range of vertical and horizontal axis types. The smallest turbines are used for applications such as battery charging for auxiliary power for boats or caravans or to power traffic warning signs. Slightly larger turbines can be used for making contributions to a domestic power supply while selling unused power back to the utility supplier via the electrical grid. Arrays of large turbines, known as wind farms, are becoming an increasingly important source of renewable energy and are used by many countries as part of a strategy to reduce their reliance on fossil fuels.
A wind turbine is a device that converts the wind's kinetic energy into electrical power. The term appears to have been adopted from hydroelectric technology (rotary propeller). The technical description of a wind turbine is aerofoil-powered generator. Wind turbines are like airplanes running on the spot—spinning round but going nowhere. They're serving a very useful purpose, however. There's energy locked in wind and these giant propellers can capture some of it and turn it instantly into electricity.
A turbine is a machine that spins around in a moving fluid (liquid or gas) and catches some of the energy passing by. All sorts of machines use turbines, from jet engines to hydroelectric power plants and from diesel railroad locomotives to windmills. Even a child's toy windmill is a simple form of turbine.
The huge rotor blades (propellers) on the front of a wind turbine are the "turbine" part. As wind passes by, the kinetic energy (energy of movement) it contains makes the blades spin around (usually quite slowly). The blades have a special curved shape so they capture as much energy from the wind as possible.
Although we talk about "wind turbines," the turbine is only one of the three main parts inside these giant machines. The second part is a gearbox whose gears convert the slow speed of the spinning blades into higher-speed rotary motion—turning the drive shaft quickly enough to power the electricity generator.
1.2                                               PROBLEM STATEMENT
As a result of continuous power failure and fluctuation in power supply by Power Holding Company of Nigeria (PHCN), sensitive appliances and system are affected by interruption power supply and also the blackout also affect human generally in that it takes away our happiness. Then, this project is to provide a back-up, renewable and reliable power supply of 1000VA from a wind turbine to power some selected home appliances such as computers, television set, lighting systems.
1.2                             OBJECTIVE OF THE PROJECT
This project aims to include and further develop the methodologies previously employed in wind turbine design to produce a 1kW turbine for electrical energy production in isolated areas. A wind turbine utilizes naturally occurring wind flow to turn wind power into electrical energy via a mechanical medium.
1.3                                  SCOPE OF THE PROJECT
Wind turbine has similar principle with dynamo on a bicycle. When you ride a bicycle, the dynamo touching the back wheel spins around and generates enough electricity to make a lamp light up. The same thing happens in a wind turbine, only the "dynamo" generator is driven by the turbine's rotor blades instead of by a bicycle wheel, and the "lamp" is a light in someone's home dozens of miles away. In this work, generator is driven by the turbine's rotor blades by wind.

1.4                                     SIGNIFICANCE OF WIND POWER

• It's a clean fuel source. Wind turbine does not pollute the air like power plants that rely on combustion of fossil fuels, such as coal or natural gas. Wind turbines do not produce atmospheric emissions that cause acid rain or greenhouse gases.
• It's sustainable. Wind is actually a form of solar energy. Winds are caused by the heating of the atmosphere by the sun, the rotation of the Earth, and the Earth's surface irregularities. For as long as the sun shines and the wind blows, the energy produced can be harnessed to send power across the grid.
• Wind power is cost-effective. It is one of the lowest-priced renewable energy technologies available today, costing between four and six cents per kilowatt-hour, depending upon the wind resource and the particular project’s financing.
• Wind turbines can be built on existing farms or ranches. This greatly benefits the economy in rural areas, where most of the best wind sites are found. Farmers and ranchers can continue to work the land because the wind turbines use only a fraction of the land. Wind power plant owners make rent payments to the farmer or rancher for the use of the land, providing landowners with additional income.

1.5                                       LIMITATION OF WIND POWER

• One of the major problems with wind energy is that the wind turbines do not always face the wind, and therefore do not always produce energy.
• Wind resource development might not be the most profitable use of the land. Land suitable for wind-turbine installation must compete with alternative uses for the land, which might be more highly valued than electricity generation.
• Turbines might cause noise and aesthetic pollution. Although wind power plants have relatively little impact on the environment compared to conventional power plants, concern exists over the noise produced by the turbine blades and visual impacts to the landscape.
• Turbine blades could damage local wildlife. Birds have been killed by flying into spinning turbine blades. Most of these problems have been resolved or greatly reduced through technological development or by properly siting wind plants.
• Energy produced by wind turbine requires expensive storage during peak production time.
• Wind energy can be harnessed only in those areas where wind is strong enough and weather is windy for most parts of the year.
  Usually places, where wind power set-up is situated, are away from the places where demand of electricity is there. Transmission from such places increases cost of electricity.
• The average efficiency of wind turbine is very less as compared to fossil fuel power plants. We might require many wind turbines to produce similar impact.
• Maintenance cost of wind turbines is high as they have mechanical parts which undergo wear and tear over the time.

1.6                             APPLICATION OF WIND-TURBINE
Wind-turbine generators have been built a wide range of power outputs from kilowatt or so to a few thousand kilowatts, machine of low power can generate sufficient electricity for space heating & cooling of names & for operating domestic appliances.
Pumping Application :- A typical wind powered pumping application is onethat might use a horizontal –axis wind used to pump irrigation water. Large number water pumping wind mills have been used in Indian forms other applications that are being developed include the pumping of water for aqueducts or for pumped-hydro storage of energy.
Direct Heat Application :- Mechanical motion derived from wind power can be used to drive heat pumps or to produce heat from the friction of solid materials, or by the chaining of water or other fluids or in other cases, by the use of centrifugal or other types of pumps in combination with restrictive orifices that produces heat from friction and turbulence when material having a high heat capacity such as water, stones, electric etc. or the heat may be used directly for such application as heating and cooling of water.
Electric Generation Applications: - Wind power can be used in centralized applications to drive synchronous a.c. electrical generator. In such applications, the energy is fed directly into power networks through voltage step-up transformers.
1.7                                 TYPES OF WIND TURBINE
Wind turbines can rotate about either a horizontal or a vertical axis, the former being both older and more common. They can also include blades (transparent or not) or be bladeless. Modern wind turbines fall into two basic groups: the horizontal-axis and vertical axis wind turbine.
Horizontal axis
Components of a horizontal axis wind turbine (gearbox, rotor shaft and brake assembly) being lifted into position
Horizontal-axis wind turbines (HAWT) have the main rotor shaft and electrical generator at the top of a tower, and must be pointed into the wind. Small turbines are pointed by a simple wind vane, while large turbines generally use a wind sensor coupled with a servo motor. Most have a gearbox, which turns the slow rotation of the blades into a quicker rotation that is more suitable to drive an electrical generator.
Vertical axis design
Vertical-axis wind turbines (or VAWTs) have the main rotor shaft arranged vertically. One advantage of this arrangement is that the turbine does not need to be pointed into the wind to be effective, which is an advantage on a site where the wind direction is highly variable. It is also an advantage when the turbine is integrated into a building because it is inherently less steerable. Also, the generator and gearbox can be placed near the ground, using a direct drive from the rotor assembly to the ground-based gearbox, improving accessibility for maintenance.
1.8                                         METHODOLOGY
To achieve the aim and objectives of this work, the following are the steps involved:

• Study of the previous work on the project so as to improve it efficiency.
• Draw a block diagram.
• Test for continuity of components and devices,
• Design of the device was carried out.
• Studying of various component used in circuit.
• Construction of the circuit was carried out. The construction of this project includes the placing of components on Vero boards, soldering and connection of components,
• Finally, the whole device was cased and final test was carried out.

1.9                                                         PROJECT ORGANISATION
The work is organized as follows: chapter one discuses the introductory part of the work, chapter two presents the literature review of the study,  chapter three describes the methods applied, chapter four discusses the results of the work, chapter five summarizes the research outcomes and the recommendations.

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CHAPTER THREE: The complete chapter three of "design and costing of a 1kw wind turbine power system in port harcourt" is available. Order full work to download. Chapter three of "design and costing of a 1kw wind turbine power system in port harcourt" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.

CHAPTER FOUR: The complete chapter four of "design and costing of a 1kw wind turbine power system in port harcourt" is available. Order full work to download. Chapter four of "design and costing of a 1kw wind turbine power system in port harcourt" consists of all the test conducted during the work and the result gotten after the whole work

CHAPTER FIVE: The complete chapter five of design and construction of a "design and costing of a 1kw wind turbine power system in port harcourt" is available. Order full work to download. Chapter five of "design and costing of a 1kw wind turbine power system in port harcourt" consist of conclusion, recommendation and references.

 

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