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TITLE PAGE
DESIGN OF A SOLAR PHOTOVOLTAIC SYSTEM FOR TWO BED ROOM FLAT
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, " design of a solar photovoltaic system for two bed room flat" 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……………….
……………………………….
---
External Invigilator
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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Solar panels take advantage of one of nature’s most powerful yet free resources: the energy produced by the sun. Solar panels, also known as photovoltaic systems, use semiconductor technology to convert energy from sunlight into electricity that can power your household for free. It is aimed at clearing doubts and fear engulfed by residential owners about photovoltaic systems in the country. The off grid photovoltaic system was design based on the electrical energy requirement of the flat. To achieve this, the power rating of common appliances which could be found in the flat were identified and multiplied by their time of operation to understand the energy demand of the house. The photovoltaic system was designed using Polysun application software. The result obtained from simulation shows that, the system will generate enough energy for operation of these appliances including in the night. The cost was compared with the use of fuel generator within the same period. The payback period was found to be approximately 2.72years. This means that the cost of photovoltaic system for the flat is high but after 2.7 years, the installer of the PV system will be using energy virtually free for the remainder of the lifetime of the system. This work is aimed at designing an off grid photovoltaic system designed for a two bedroom flat located in nkpolu-oroworukwo, port-harcourt, Nigeria.
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 OF THE PROJECT
- PURPOSE OF THE PROJECT
- SIGNIFICANCE OF THE PROJECT
- PROBLEM AND LIMITATION OF THE STUDY
- METHODOLOGY
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- REVIEW OF THE RELATED STUDY
- ELECTRICITY CONSUMPTION IN RESIDENTIAL BUILDINGS
- SOLAR ENERGY
- COMPONENTS OF PV SYSTEM AND THEIR FUNCTIONS
- SOLAR PV INSTALLATION BLOCK AND DESCRIPTION
CHAPTER THREE
3.0 METHODOLOGY
3.1 INTRODUCTION
3.2 AREA OF STUDY
3.3 ESTIMATED ELECTRICITY CONSUMPTION OF THE HOUSE
3.4 SELECTION OF PHOTOVOLTAIC MODULE
3.5 SELECTION OF BATTERY
3.6 SELECTION OF INVERTER
CHAPTER FOUR
- ENERGY YIELD AND CONSUMPTION
- COST ESTIMATION OF THE OFF GRID PV SYSTEM
- COST ESTIMATION OF FUEL GENERATOR
CHAPTER FIVE
- CONCLUSION
- REFERENCES
APPENDIX
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE STUDY
Currently solar panels are used to provide hot water (solar thermal) and heating to homes and small ensembles. You tried to build solar power plants, using turbines, convert the stored heat into electricity, but these experiments have failed substantially to the low yield of these power relationships with high operating costs and the interruption of electricity supply (but see As for the panels that the concentration of last generation). The photovoltaic panels are used mainly to power devices away from electrical networks (space probes, the phone repeaters in the mountains, etc.) or with reduced energy requirements so that a connection to the grid would be uneconomical (light road signs, parking meters, etc.) and improper from an organizational perspective. Obviously, these devices must be equipped with batteries that can accumulate the electricity produced in excess during the day to power the equipment at night and during cloudy periods, and this device was chosen because of the erratic nature of our power supply in Nigeria.The condition of energy generation and supply in Nigeria has deteriorated to the level that it is difficult to ascertain the time it will be available to consumers. Various administrations have come up with different ways of alleviating the situation but no meaningful result is achieved till date. Recently the country has privatized power sector but the expected result is still far reach [21]. Currently, the Nigeria electricity installed capacity is 8,876MW which is mostly from fossil fuels and still grossly inadequate to meet the energy needs of more than 160 million Nigerians [17].The availability is far below the installed capacity due to many factors. In fact, the recent vandalism of gas pipelines that supply gas to power plants has caused power generation to drop to 1,580.6 megawatts in March, 2016 [16]. This has brought untold hardship on the citizens and derailed economics activities [7].
The installed capacity is not enough even when the power plants are generating at peak capacity. Only 40% of Nigeria's population is connected to the grid and the situation is worst in the rural areas. The distribution companies out of no other alternatives resolve to the used of rationing technique and mostly supplies electricity at very low current, but still those that have access to the grid; only 30% of their needs are met [1]. The inability of energy supply to match demand has become unacceptable to many citizens. As a result, they resort to other means of energy such as burning of wood and grasses, fuel or gas used generators, for domestic and day to day running of their business without considering the effects their energy sources might caused to the environment [11]. The electricity generates by Nigeria is mostly from fossil fuels which is the reason the country was in 2012, ranked 46th in the world for CO2 emissions with more than 73.69 metric tons emitted in 2011 [2].
The introduction of photovoltaic technologies is a relief to the situation faced by Nigeria today. After all, the use of fossil fuel for energy generation is outdated due to its effects on climate. Apart from that, it is costly and mostly a source of conflict [22].
Photovoltaic is a technology used to convert sunlight directly to electricity. Photovoltaics are also called solar cells. When sunlight strike the surface of the cell, the energy from the light is enough to eject one electron from the shell of its host atom with a constant amount of energy. The electron removal is proportional to the intensity of micro packets of light energy usually referred to as photons [22]. Very close to the surface of the cell is a membrane called pn-junction which allows only electrons with a specific amount of energy to cross. This makes the surface of the cell facing the sun to acquire negative voltage while the other side is positive voltage [6]. If electrical cables are connected to the negative and positive sides, forming an electrical circuit, the electrons can be collected in the form of electric current (electricity) which can be used to power electric appliances. Figure 1 is the summary of how photovoltaic works.
Different cells are connected together to form a solar module. A solar module supply electricity at a particular voltage just like conventional cells. Many different solar modules connected together forms an array. The solar module can have a life time of at least 20 years [12]. Photovoltaic is currently used in many countries for electricity generation. Figure 2 from the appendix page shows the global PV installation in 2016.
Many researchers have found out that PV systems are cheap and will even get cheaper as time passes. The cost of a PV system includes the capital cost, operation and maintenance cost and installation cost. The cost depends on factors such as the size, and whether it is mounted on a roof top or on the ground [9]. The roof top PV does not require an extra space but mounting on the ground requires a separate space for the system. Figure 3 shows the projected price of photovoltaic modules.
In a comparative study conducted by [10] at university of porthartcourt, discovered that the cost of an off grid photovoltaic system is cheaper than the use of diesel for energy generation or when one embark on payment of electricity bills from the grid.
An off grid photovoltaic system generates electricity independently without grid connection. The components of the off grid photovoltaic system and their functions are seen in table 2 and the connection between the components is as seen in figure 4 from the appendix page.
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 and reliable power supply from a renewable energy source (solar panel) to power a two bed room flat.
1.2 AIM OF STUDY
The aim of this work is to design a renewable power supply that uses solar cells to convert energy from the sun into a flow of electrons by the photovoltaic effect. Solar cells produce direct current electricity from sunlight which can be used to power equipment in a two bedroom flat.
1.3 PURPOSE OF THE STUDY
The purpose of this work is to have a steady power supply in a two bedroom flat that is independent on the mains grid system.
1.4 SIGNIFICANCE OF THE STUDY
- Electricity produced by solar cells is clean and silent. Because they do not use fuel other than sunshine, PV systems do not release any harmful air or water pollution into the environment, deplete natural resources, or endanger animal or human health.
- Photovoltaic systems are quiet and visually unobtrusive.
- Small-scale solar plants can take advantage of unused space on rooftops of existing buildings.
- PV cells were originally developed for use in space, where repair is extremely expensive, if not impossible. PV still powers nearly every satellite circling the earth because it operates reliably for long periods of time with virtually no maintenance.
- Solar energy is a locally available renewable resource. It does not need to be imported from other regions of the country or across the world. This reduces environmental impacts associated with transportation and also reduces our dependence on imported oil. And, unlike fuels that are mined and harvested, when we use solar energy to produce electricity we do not deplete or alter the resource.
- A PV system can be constructed to any size based on energy requirements. Furthermore, the owner of a PV system can enlarge or move it if his or her energy needs change. For instance, homeowners can add modules every few years as their energy usage and financial resources grow. Ranchers can use mobile trailer-mounted pumping systems to water cattle as the cattle are rotated to different fields.
1.5 PROBLEM AND LIMITATION OF THE STUDY
- Some toxic chemicals, like cadmium and arsenic, are used in the PV production process. These environmental impacts are minor and can be easily controlled through recycling and proper disposal.
- Solar energy is somewhat more expensive to produce than conventional sources of energy due in part to the cost of manufacturing PV devices and in part to the conversion efficiencies of the equipment. As the conversion efficiencies continue to increase and the manufacturing costs continue to come down, PV will become increasingly cost competitive with conventional fuels.
- Solar power is a variable energy source, with energy production dependent on the sun. Solar facilities may produce no power at all some of the time, which could lead to an energy shortage if too much of a region's power comes from solar power.
1.6 RESEARCH METHODOLOGY
In the course of carrying this study, numerous sources were used which most of them are by visiting libraries, consulting journal and news papers and online research which Google was the major source that was used.
1.7 PROJECT ORGANISATION
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of " design of a solar photovoltaic system for two bed room flat" is also available. Order full work to download. Chapter two of " design of a solar photovoltaic system for two bed room flat" consists of the literature review. In this chapter all the related work on " design of a solar photovoltaic system for two bed room flat" was reviewed.
CHAPTER THREE: The complete chapter three of " design of a solar photovoltaic system for two bed room flat" is available. Order full work to download. Chapter three of " design of a solar photovoltaic system for two bed room flat" 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 of a solar photovoltaic system for two bed room flat" is available. Order full work to download. Chapter four of " design of a solar photovoltaic system for two bed room flat" 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 of a solar photovoltaic system for two bed room flat" is available. Order full work to download. Chapter five of " design of a solar photovoltaic system for two bed room flat" consist of conclusion, recommendation and references.
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