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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, "solar powered emergency system of a tugboat" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.

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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.
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This study proposes a Solar PV backup emergency system for a marine tugboat. Tugs are an important kind of vessel that should be able to maneuver continuously without any interruption of their electrical energy system. New power management integrating a solar energy aims to ensure a long period of continuous safe operation in case of a total blackout and also to replace the perturbed power grid of the port for a partial time. During this problem of power failure, the tug can’t reach safely the harbor and hence immediate assistance is needed. To avoid this scenario, the idea is why not extend this period of emergency operation, and also try to supply the vessel inside the port only with clean energy. First, the electrical distribution system is presented and detailed including the power demand study of installed loads. The proposed energy source is also discussed for its many benefits especially in the case of favorable maritime climatic conditions. The results confirm that the combined Diesel/PV system appears to be very interesting, it reduces CO2 emissions from diesel generators and annual fuel costs can be saved
Keywords
Emergency blackout, photovoltaic PV, solar powered tugboat, battery energy storage, diesel tugboat.

TABLE OF CONTENTS

 TITLE PAGE

APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
TABLE OF CONTENT

CHAPTER ONE

INTRODUCTION

• BACKGROUND OF THE PROJECT
• PROBLEM STATEMENT
• AIM  AND OBJECTIVES OF THE PROJECT
• SIGNIFICANCE OF THE PROJECT
• LIMITATION OF THE PROJECT
• SCOPE OF THE PROJECT
• PROJECT ORGANISATION

CHAPTER TWO

LITERATURE REVIEW
2.1      REVIEW OF THE STUDY
2.2      RELEVANCE OF TUGBOATS IN THE SHIPPING SECTOR
2.3      CLASSIFICATION OF TUGS
2.4      TECHNICAL ADVANCEMENTS IN TUGS
2.5      OVERVIEW OF SOLAR ENERGY
2.6      SOLAR PANEL
2.7      PHOTOVOLTAIC POWER GENERATION

CHAPTER THREE

3.0      METHODOLOGY

3.1      SOLAR POWER GENERATION CONCEPT

3.2      SYSTEM BLOCK DIAGRAM
3.3      SYSTEM ARCHTECTURE
3.5      INSTALLATION CALCULATION

CHAPTER FOUR

4.1      TESTING OF SOLAR PANELS
4.2      SOLAR PANEL MAINTENANCE

CHAPTER FIVE

5.0      CONCLUSION AND RCOMMENDATION

• CONCLUSION
• RECOMMENDATION

5.3     REFERENCES

CHAPTER ONE

1.0                                        INTRODUCTION

1.1                             BACKGROUND OF THE STUDY

Tugboat, small, powerful watercraft designed to perform a variety of functions, especially to tow or push barges and large ships. In 1736 Jonathan Hulls of Gloucestershire, Eng. patented a boat to be powered by a Newcomen steam engine to move large vessels in and out of harbours. The first tugboat actually built was the Charlotte Dundas, powered by a Watt engine and paddle wheel and used on the Forth and Clyde Canal in Scotland. Screw propulsion for tugboats was introduced in the United States about 1850, the diesel engine about 50 years later.
Tugs are still indispensable in berthing large ships. Oceangoing tugs are used for salvage missions. Also, moving a ship without the chance of colliding with underwater stones and leftover debris in some ports can be complicated process also, there may not be large spaces for ships to move easily and move around. All these difficulties can be avoided by tugboat transportation.
A tugboat is a boat or ship that manoeuvres vessels by pushing or towing them. Tugs move vessels that either should not move by themselves such as ships in a crowded harbor or a narrow canal, or those that could not move by themselves, such as barges, disabled ships, log rafts, or oil platforms. Tugboats are powerful for their size and strongly built, and some are ocean going. Some tugboats serve as icebreakers or salvage boats. Early tugboats had steam engines, but today most have diesel engines.
One of the major challenges of tugboat is the lack of provision of taking care of emergences when engine failure occurs which can stop the propeller. For this purpose, ABB supplied the end-to-end electric propulsion system to sustain emissions-free operations in waters off the eighth most populous city in the United States. The solution will include a six-megawatt-hour energy storage system (ESS), allowing Crowley’s eWolf tug to achieve 70 short-tons of bollard pull emissions-free. The battery allows the tug to complete a full day of typical work before there is a need to charge.
Tug operations can be demanding and often need to adapt to fast-changing load requirements. Renewable energy (solar) with batteries provide power to the propulsion system almost instantaneously, making ship-assist operations more efficient with no emissions while delivering reliable ship assist and harbor escort services.
The tug’s engines will leverage the Onboard DC Grid to operate at variable speeds, thereby helping to reduce fuel consumption.
The batteries can provide power to the tug’s propulsion system instantly, while Power and Energy Management System (PEMS) will control the overall power distribution.
This work is aimed at studying interfacing of renewable energy to a tugboat in other to take care of emergencies which may occur during operation.

1.2                                         PROBLEM STATEMENT
One cannot fully rely on everyday 24hrs of operation of a diesel tugboat whence it is a man-made. There are many factors that can cause a diesel Tugboat to fail such as when the diesel is exhausted or due to some mechanical problem.  Solar powered emergency system of a marine tugboat was made to overcome challenges mentioned above. With the integration of renewable energy, tugboat can work uninterruptedly.

1.3                              AIM AND OBJECTIVES OF THE STUDY
Aim of the study
The main aim of this work is to study the solar powered emergency system of a tugboat as a means of providing uninterruptible power supply to a marine tugboat
Objectives of the study:

• To provide an alternative power supply thereby providing uninterruptible power supply to the a marine tugboat
• To ensure a steady working condition of a marine tugboat
• To ensure safe arrival of the operators of a marine tugboat
• To provide a sustainable ship assist solution with increased safety and capabilities

1.4      SIGNIFICANCE OF THE PROJCET
The research contributes to the industries sector by constructing tugboats natively using solar energy which can reduce the cost taking in consideration ordering them from foreign companies. This study will also enhance the river transportation process and increase the maximum capacity of a ship to be towed using a tugboat.
Interfacing solar energy will helped in reducing global warming,  greenhouse effect and annual fuel costs can be saved.

1.5                            LIMITATION OF THE PROJECT

• Initially one needs to shell out a lot of money for buying a solar panel, battery and fan.
• The charging system of the tugboat will work effectively and produce direct current only when the Sunlight is strong.
• The solar panels that are used to attract Sunlight requires lots of space in the boat.

1.6                              SCOPE OF THE STUDY
The scope of this work covers setting up a solar generating device using solar panel, solar charge controller and 24v rechargeable battery – which shall be able to control 24v marine tugboat propeller.

1.7                              PROJECT ORGANISATION
The work is organized as follows: chapter one discuss 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 TWO: The chapter one of this work has been displayed above. The complete chapter two of "solar powered emergency system of a tugboat" is also available. Order full work to download. Chapter two of "solar powered emergency system of a tugboat" consists of the literature review. In this chapter all the related works on "solar powered emergency system of a tugboat" were reviewed.

CHAPTER THREE: The complete chapter three of "solar powered emergency system of a tugboat" is available. Order full work to download. Chapter three of "solar powered emergency system of a tugboat" 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 "solar powered emergency system of a tugboat" is available. Order full work to download. Chapter four of "solar powered emergency system of a tugboat" consists of all the test conducted during the work and the result gotten after the whole work

CHAPTER FIVE: The complete chapter five of "solar powered emergency system of a tugboat" is available. Order full work to download. Chapter five of "solar powered emergency system of a tugboat" consist of conclusion, recommendation and references.

 

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