INVESTIGATING THE EFFECTS OF PROPELLER SHAPE AND SIZE ON THE PERFORMANCE OF OUTBOARD MOTORS
USER'S INSTRUCTIONS: The project work you are about to view is on "investigating the effects of propeller shape and size on the performance of outboard motors". Please, sit back and study the below research material carefully. This project topic"investigating the effects of propeller shape and size on the performance of outboard motors"have complete 5(five) Chapters. The complete Project Material/writeup include: Abstract + Introduction + etc + Literature Review + methodology + etc + Conclusion + Recommendation + References/Bibliography.Our aim of providing this"investigating the effects of propeller shape and size on the performance of outboard motors" project research material is to reduce the stress of moving from one school library to another all in the name of searching for"investigating the effects of propeller shape and size on the performance of outboard motors"research materials. We are not encouraging any form of plagiarism. This service is legal because, all institutions permit their students to read previous projects, books, articles or papers while developing their own works.
TITLE PAGE
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
APPROVAL PAGE
This is to certify that the research work,"investigating the effects of propeller shape and size on the performance of outboard motors"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.
PROJECT DESCRIPTION: This work"investigating the effects of propeller shape and size on the performance of outboard motors"research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of"investigating the effects of propeller shape and size on the performance of outboard motors"visible for everyone, then the complete material on"investigating the effects of propeller shape and size on the performance of outboard motors"is to be ordered for. Happy viewing!!!
TABLE OF CONTENTS
Cover page
Title page
Approval page
Dedication
Acknowledgement
Abstract
CHAPTER ONE
1.0 Introduction
1.1 Background of the project
- Statement of the problem
- Aim and objectives of the project
- Scope of the project
- Significance of the project
CHAPTER TWO
LITERATURE REVIEW
- Review of propeller
- Propeller - theory of operation
- Types of boat propellers
- Historical background of propeller
- Review of related studies
CHAPTER THREE
3.1 Basic propeller components
3.2 Material and construction of propeller
3.3 Effect of a propeller size on outboard motor performance
CHAPTER FOUR
4.1 FSI simulation
4.2 results
CHAPTER FIVE
- Summary
- Conclusion
- Recommendation
References
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE STUDY
A propeller is a rotating fan-like structure that is used to propel the ship by using the power generated and transmitted by the main engine of the ship.
The transmitted power is converted from rotational motion to generate a thrust which imparts momentum to the water, resulting in a force that acts on the ship and pushes it forward (Bertetta et al., 2012).
Propeller design is a highly complex procedure, involving many influencing factors. Tuning the propeller geometry towards efficiency also changes its characteristics with regard to vibration, inboard noise and cavitation behaviour, which will most likely occur when the propeller is in operation. The propeller experiences varying inflow conditions while travelling through the circumferential wake. This causes a varying load on the propeller blade during one revolution and results in a local pressure drop around the blade (Bertetta et al., 2012). Depending on the operating conditions, e.g., submergence of the propeller shaft or rotational speed, the pressure sags below the vapour pressure and cavitation, i.e., vapour pockets in the liquid, can be observed at the propeller. When again entering high-pressure regions, the cavities collapse extremely rapidly and may cause noise and vibration, which are transferred to the ship’s hull, and cause erosion on the propeller or the rudder. Cavitation and propeller-induced pressure pulses are the most evident propeller effects contradictory to efficiency. Consequently, the only solution is to find a trade-off blade geometry that is adapted to the flow and therefore only valid for a certain ship and the specific operating conditions (Bertetta et al., 2012).
A ship propels on the basis of Bernoulli’s principle and Newton’s third law. A pressure difference is created on the forward and aft side of the blade and water is accelerated behind the blades.
The thrust from the propeller is transmitted to move the ship through a transmission system which consists of a rotational motion generated by the main engine crankshaft, intermediate shaft and its bearings, stern tube shaft and its bearing and finally by the propeller itself (Bertetta et al., 2012).
1.2 STATEMENT OF THE PROBLEM
The National Marine Manufacturers Association has found that approximately 100 million individuals go boating each year. That means there are millions of boats on the water across the globe. As a result, propellers have made a major splash within this industry, with the types of propellers continually expanding as boat technology improves.
Understanding boat propeller design can help solve performance problems that occur when a boat is being driven under power. The wrong prop may be wrong in a number of different ways including blade shape or size.
Your propeller blade shape or size may suffer from cavitation, ventilation or slippage – your boat may be burning too much fuel or lacking acceleration or top speed. It is important to study the effect of propeller shape and size on the performance of a boat.
The main aim of this work is to investigate the effects of propeller shape and size on the performance of outboard motors.
The objectives of the study are:
- To study how the shape and size of a propeller affect the performance of outboard motors.
- To study the operation of a propeller in an outboard motors.
1.4 SCOPE OF THE STUDY
The propeller is the means of propulsion whose rotation is driven by the engine. The thrust created by the movement of the blades in the water generates the speed of the boat. The decisive factor in reaching the manufacturer-recommended speed is the propeller pitch. This is the distance travelled by the propeller to complete one full rotation about its axis. The scope of this work covers investigating how shape and size of a propeller affect the performance of outboard motors.
1.5 SIGNIFICANCE OF THE STUDY
This study will serve as a means of understanding factors that determines the efficient performance of outboard motors.
The study will also serve as a means of studying the operation of a propeller of outboard motors.
This study will serve as a means of knowing the constructional details of an outboard motors’ propeller.
CHAPTER FIVE
5.1 SUMMARY
In summary, larger propellers can generate more thrust, but also require more power to turn, while the shape of the blades determines how efficiently the propeller generates thrust.
A larger propeller diameter can generate more thrust, but it also requires more power to turn. In general, larger propellers are more efficient at generating thrust at slower speeds, while smaller propellers are more efficient at higher speeds.
5.2 CONCLUSION
In this work an advance propeller for effective performance was designed. Propeller generates adequate thrust to propel a vessel at some design speed with some care taken in ensuring some “reasonable” propulsive efficiency.
Considerations are made to match the engine’s power and shaft speed, as well as the size of the vessel and the ship’s operating speed, with an appropriately designed propeller.
Given that the above conditions are interdependent (ship speed depends on ship size, power required depends on desired speed, etc.)
5.3 RECOMMENDATION
- Low weight blade can be designed and manufactured with strong load carrying capacity.
- Numerical simulation data of Emerson experimental test.
- Fluid-structure interaction data in said experiment.
- Increase in efficiency of marine propeller on replacement with composite material by reducing its weight without compromising its strength.
- Optimized component helps in increasing performance of marine turbine
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of"investigating the effects of propeller shape and size on the performance of outboard motors" is also available. Order full work to download. Chapter two of"investigating the effects of propeller shape and size on the performance of outboard motors"consists of the literature review. In this chapter all the related work on"investigating the effects of propeller shape and size on the performance of outboard motors"was reviewed.
CHAPTER THREE: The complete chapter three of"investigating the effects of propeller shape and size on the performance of outboard motors"is available. Order full work to download. Chapter three of"investigating the effects of propeller shape and size on the performance of outboard motors"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"investigating the effects of propeller shape and size on the performance of outboard motors"is available. Order full work to download. Chapter four of"investigating the effects of propeller shape and size on the performance of outboard motors"consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of"investigating the effects of propeller shape and size on the performance of outboard motors"is available. Order full work to download. Chapter five of"investigating the effects of propeller shape and size on the performance of outboard motors"consist of conclusion, recommendation and references.
To "DOWNLOAD" the complete material on this particular topic above click "HERE"
Do you want our Bank Accounts? please click HERE
To view other related topics click HERE
To "SUMMIT" new topic(s), develop a new topic OR you did not see your topic on our site but want to confirm the availiability of your topic click HERE
Do you want us to research your new topic? if yes, click "HERE"
Do you have any question concerning our post/services? click HERE for answers to your questions
For more information contact us through any of the following means:
Mobile No 
:+2348146561114 or +2347015391124 [Mr. Innocent]
Email address 
:engr4project@gmail.com
Watsapp No 
:+2348146561114
COUNTRIES THAT FOUND OUR SERVICES USEFUL
Australia, Botswana, Canada, Europe, Ghana, Ireland, India, Kenya, Liberia, Malaysia, Namibia, New Zealand, Nigeria, Pakistan, Philippines, Singapore, Sierra Leone, South Africa, Uganda, United States, United Kindom, Zambia, Zimbabwe, etc
Support: +234 8146561114 or +2347015391124
Watsapp No :+2348146561114
Email Address :engr4project@gmail.com
FOLLOW / VISIT US VIA:
