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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.
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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Due to the rotation of the earth in an orbit, direction of the Sun changes relatively. This work covers a setup, which is fabricated to minimize the angle of incidence between incoming light from Sun and a flat photovoltaic (PV) panel to increase the intensity of the light received. It increases the power generated by an installed power generating unit. This setup consists of a mechanical mechanism to tilt the flat PV panel towards the Sun. This mechanism is derived by DC motors having a high reduction ratio. Voltage supplies to these motors are controlled by the LDR (Light Dependent Registers) sensors by the means of electronic circuits. The energy consumed by the tracking system is very less. The cost of the mechanical parts and electronic components are very less. The Microprocessor is not used in this setup. Hence it does not require programming and computer interface. Not any geological data are required, because LDRs work on the differential of the light intensity at the both ends of the plate. The motive of the work is to fabricate a solar tracker at a very low cost.
Keywords: Solar Tracker, LDR, Photovoltaic (PV) cell, Dual Axis, Solar Collectors, Solar power plant
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
- AIM AND OBJECTIVES OF THE PROJECT
- SCOPE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- BBACKGROUD LITERATURE SURVEY OF THE STUDY
- OVERVIEW OF THE STUDY
- THEORETICAL FUNDAMENTALS
- COMPONENTS OF SOLAR TRACKING SYSTEMS
- REVIEW OF THE PAST WORK ON SOLAR TRACKING SYSTEM
- SOLAR PANEL MOUNTING
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 SYSTEM BLOCK DIAGRAM
3.2 MATERIALS USED
3.3 PRINCIPLE OF THE WORK
3.4 CONSTRUCTIONAL DETAIL OF THE SETUP
CHAPTER FOUR
TEST AND RESULT ANALYSIS
- CALIBRATION OF THE SETUP
- TESTING/WORKING OF THE SETUP
- RESULTS
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
Energy is required for the different applications in our daily life. There are so many resources of power generation. 85% of power is produced from fossil fuels (Anuraj & Gandhi, 2014). Due to the depletion of the fossil fuel, renewable energy resources are required. Wind energy, geothermal energy, tidal energy and solar energy resources are some of the most efficient renewable energy resources. Solar energy can be converted in to two forms of energy, i.e. thermal energy and electrical energy. These can be achieved by using some instruments. Solar energy can be converted into electrical energy by using PV (photovoltaic) cells. Rays from the Sun light falls on the PV panel, which generates DC power. This DC power has a direct correlation with the intensity of the light incident on panel. And the intensity depends on the angle of incidence between incoming light and a flat photovoltaic (PV) panel. A tracking system can keep the angle of incidence equal to 0. Sun tracking systems can increase the power output of solar power plants by 25% to 40%, depending on the geographic location. A single axis tracker can increase power output by 26%, while a dual axis tracker increases power by 32% (Deb & Roy, 2012). Single axis trackers follow the Sun from east to west, while dual axis trackers track the Sun by altitude (up/down), since the Sun moves across the sky throughout the day. Mousazadeh et al. (2009) calculated that the amount of power gained by tracking can come close to an ideal 57% (Mousazadeh et al., 2009). Tracking systems compose of mechanical mechanism and electronic sensors. Mechanical mechanism rotates the flat panel and this rotation is controlled by electronic sensors. The controlling process can be classified into two processes, namely passive control unit (Arsalan, 2013) and electro-optical control unit. The passive control unit is a system conducted without any electronic device. The electro optical control unit uses solar detecting devices which are sensitive to solar radiance photo sensors (LDR). Third controlling process is used in this work.
1.2 PROBLEM STATEMENT
One of the major problems facing solar energy systems is the efficiency as the sun moves on the celestial sphere, and this makes it difficult to achieve higher power output from the solar panel. In other to solve this problem, a solar tracker was built. Solar tracker is a device that tracks the position of the sun and set the solar energy conversion system focusing normal to the sun beams. A single axis tracker was first built which was only able to increase power output by 26% due to the fact that it Single axis trackers follow the Sun from east to west (Deb & Roy, 2012). This paper presents a design focused on harnessing the maximum available solar radiation using dual-axis tracking mechanism. The tracking mechanism is designed to focus the solar conversion system perpendicular to the rays of the sun (sun beams) at all time of the day relative to the position of the sun in the sky dome.
1.3 AIM AND OBJECTIVES OF THE STUDY
The main aim of this study is to build an intelligent dual-axis solar tracking device for solar system usage. The objectives of the work are:
- To fabricate a solar tracking device with dual actuator, which one of the actuators tracks the east to west motion of the sun while the second linear actuator tracks the seasonal motion/daily altitude of the sun
- To harness maximum solar energy
- To provide a stable electric power supply using solar energy.
The scope of this work covers building a dual axis solar tracking system using two linear actuator .The driving mechanism for the motion are two direct current linear actuators of 12V each, which one of the actuators tracks the east to west motion of the sun while the second linear actuator tracks the seasonal motion/daily altitude of the sun. The main task of the tracking mechanism is to focus solar energy conversion system perpendicular to the sun to maximize the absorbed solar radiation and minimize the energy consumption for tracking system. The movement of the sun on the celestial sphere was the bases of the tracking mechanisms angles design.
1.5 SIGNIFICANCE OF THE STUDY
To the country, this study will serve as means of ensuring a steady power supply which will help the country (Nigeria) to be able to grow its economy, and attain its Millennium Development Goals (MDGs).
To the student, this study will help the student involved becoming familiar with solar energy generation and also help him to understand how he can increase the power of solar energy by electromechanical means.
1.6 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 such as Input Light Sensors (LDR),
- Design of the device was carried out (such as the control circuit and the tracking mechanism.
- Construction of the circuit was carried out. The construction of this project includes the placing of components on Vero boards, soldering and connection of other electronics components and mechanical devices,
- Finally, the whole device was cased and final test was carried out
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design and construction of a dual axis solar tracking system using two linear actuator" is also available. Order full work to download. Chapter two of "design and construction of a dual axis solar tracking system using two linear actuator" consists of the literature review. In this chapter all the related works on "design and construction of a dual axis solar tracking system using two linear actuator" were reviewed.
CHAPTER THREE: The complete chapter three of "design and construction of a dual axis solar tracking system using two linear actuator" is available. Order full work to download. Chapter three of "design and construction of a dual axis solar tracking system using two linear actuator" 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 construction of a dual axis solar tracking system using two linear actuator" is available. Order full work to download. Chapter four of "design and construction of a dual axis solar tracking system using two linear actuator" 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 dual axis solar tracking system using two linear actuator" is available. Order full work to download. Chapter five of "design and construction of a dual axis solar tracking system using two linear actuator" consist of conclusion, recommendation and references.
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