MARINE ELECTRIC seminar topic for engineers.pptx

About marine electric

1. MARINE ELECTRIC PROPULSION SYSTEM {A SUSTAINABLE FUTURE FOR MARITIME INDUSTRY} JUSTIN VIJILEES S7 ME CCE21ME047

2. WHAT DO YOU MEAN BY MARINE PROPULSION SYSTEM ? A marine propulsion system is a machine or mechanism that generates thrust to move a boat or ship through the water. The system converts energy into motion, allowing the vessel to move. A propulsion system consists of three parts :- -An energy source ( fuel energy, wind or solar power) -An engine that transforms it to a mechanical form -Propulsor or thrustor (pushes surrounding water backwards)

3. WHY THIS TOPIC ? Environmental benefits -Reduces emissions, noise and vibrations Energy efficiency -Improved energy efficiency, fuel consumption Future oriented -Sustainability, decarbonisation Technological advancement

4. Different Propulsion Systems USED Diesel Propulsion -Uses diesel engines to turn propellers -High power density, but noisy and emits pollutants Gas Turbine Propulsion - Employs gas turbines to generate power for propellers -High power-to-weight ratio, expensive, low efficiency 3. Hybrid Propulsion -Combines different power sources -Reduced emissions, complex integration

5. 4. Petrol Propulsion - Uses petrol engines to turn propellers - Lower upfront cost, higher fuel consumption, emits pollutants Steam Turbine Propulsion - Utilizes steam turbines to drive propellers -High efficiency, high upfront cost 6. Sail Propulsion - Harnesses wind energy using sails -Zero emissions, dependent on wind conditions, requires skilled crew 7. Water Jet Propulsion - Uses a pump to accelerate water, generating thrust - High speed capability, noise and vibration

6. ELECTRIC PROPULSION SYSTEM A marine electric propulsion system is a type of propulsion system used in ships and boats that uses electric motors powered by a source of electricity, such as batteries, generators, or fuel cells, to propel the vessel through the water. This system is becoming increasingly popular due to its potential to reduce greenhouse gas emissions, noise pollution, and operating costs compared to traditional fossil fuel-based propulsion systems.

7. KEY COMPONENTS Power Generation Power Conversion Energy Storage Electric Motor Propulsion Unit Control System Power Distribution Cooling System

8. WORKING PRINCIPLE 1. Power generation : Diesel generators or gas turbines produce electrical power. 2. Power conversion : Rectifiers and inverters convert power to match motor requirements. 3. Energy storage : Batteries or supercapacitors store excess energy. 4. Electric motor : Converts electrical energy into mechanical energy.

9. WORKING PRINCIPLE 5. Propulsion unit : Converts mechanical energy into thrust. 6. Control system : Monitors and controls MEP system. 7. Power Distribution : Distributes power to motor and other components. 8. Cooling system : Regulates temperature of electrical components.

10. TYPES OF MARINE ELECTRIC PROPULSION SYSTEM 1 . Direct Current (DC) Systems - - Used in small vessels, tugboats, and ferries - Components: DC motor, battery, and controller 2. Alternating Current (AC) Systems - - Used in larger vessels, cruise ships, and naval vessels - Components: AC motor, transformer, rectifier, and inverter Hybrid Electric Propulsion Systems - -Combines diesel engine with electric motor -Diesel engine, electric motor, battery& power conversion system

11. Full Electric Propulsion Systems - -Electric motor powered by battery or fuel cell -Electric motor, battery or fuel cell, and power conversion system Diesel-Electric Propulsion Systems - -Diesel engine generates electricity for electric motor -Diesel engine, generator, electric motor & power conversion system Nuclear Electric Propulsion Systems - -Nuclear reactor generates electricity for electric motor - Nuclear reactor, electric motor, and power conversion system

12. Solar Electric Propulsion Systems - -Solar panels generate electricity for electric motor - Solar panels, electric motor, battery, and power conversion system Wind-Assisted Electric Propulsion Systems - -Wind turbines generate electricity for electric motor -Wind turbines, electric motor, battery & power conversion system Hydrogen Fuel Cell Electric Propulsion Systems - -Hydrogen fuel cells generate electricity for electric motor -Hydrogen fuel cells, electric motor, and power conversion system

13. FUTURE DEVELOPMENT 1. Advanced batteries 2. Fuel cells 3. Hybrid propulsion 4. Renewable energy integration

14. ADVANTAGES OVER TRADITIONAL PROPULSION SYSTEM High Efficiency : Electric propulsion systems have higher efficiency (~60-80%) compared to traditional fossil fuel-based systems (~30-40%). Low Emissions : Electric propulsion produces zero emissions, reducing environmental impact and meeting increasingly stringent regulations. Smooth Operation : Electric motors provide smooth, quiet operation, improving crew comfort and reducing noise pollution. Reduced Maintenance : Electric propulsion systems have fewer moving parts, reducing maintenance requirements and increasing reliability. Increased Flexibility : Electric propulsion allows for flexible power distribution, enabling easier integration of renewable energy sources.

15. ADVANTAGES OVER TRADITIONAL PROPULSION SYSTEM 6. Improved Maneuverability : Electric propulsion systems offer precise control, enhancing vessel maneuverability and station-keeping capabilities. 7. Reduced Fuel Consumption : Electric propulsion can optimize fuel consumption, reducing operating costs and dependence on fossil fuels. 8. Scalability : Electric propulsion systems can be scaled for various vessel sizes and applications. 9. Integration with Renewable Energy : Electric propulsion can be combined with renewable energy sources (e.g., solar, wind, or hydro power) for a more sustainable solution. 10. Future-Proof : Electric propulsion positions vessels for future regulatory requirements and emerging technologies, such as hydrogen fuel cells or advanced batteries.

16. LIMITATIONS 1. High Upfront Costs : Initial investment in electric propulsion systems is higher. 2. Limited Range : Battery capacity limits range and endurance. 3. Charging Time : Longer charging times compared to refueling. 4. Weight : Battery weight affects vessel stability and cargo capacity. 5. Complexity : Requires specialized knowledge for maintenance and repair. 6. Scalability : Currently limited to smaller vessels or low-power applications. 7. Infrastructure : Limited charging infrastructure for marine vessels. 8. Safety Concerns : Electrical safety and shock risks

17. APPLICATIONS Ferries Offshore supply vessels Tugboats Fishing vessels Luxury yachts Naval vessels Cruise ships

18. LITERATURES REFERED Potentials and limitations of battery-electric container ship propulsion systems (Lukas Kistner a, Astrid Bensmann a, Richard Hanke- Rauschenbach a):- Battery-electric propulsion is viable for ships with passages under 2,500 km, becoming economically competitive with diesel engines when factoring in carbon taxes and future battery advancements. Zero-emission propulsion system featuring, Flettner rotors, batteries and fuel cells, for a merchant ship (Fabian Thies , Hua-Dong Yao, Jonas W. Ringsberg ):- A hybrid hydrogen-wind-powered propulsion system is proposed to achieve zero-emission shipping by 2050, retrofitted to existing merchant ships, combining fuel cells, batteries, and Flettner rotors.

19. Comparative analysis and test bench validation of energy management methods for a hybrid marine propulsion system powered by batteries and solid oxide fuel cells (Hiba Youssfi a, Rehan Ahmad Khan a, Santiago Salas Ventura d):-A hybrid propulsion system powered by fuel cells and batteries, optimized with machine-learning-based energy management , reduces hydrogen consumption by 10% and increases battery lifespan by 6% compared to conventional methods. Live-Life cycle assessment of the electric propulsion ship using solar PV ( Chybyung Park a, Byongug Jeong a, Peilin Zhou a b, Hayoung Jang a, Seongwan Kim c):- Live-Life Cycle Assessment, a novel simulation-based methodology, to evaluate solar-electric propulsion ships' environmental impact, revealing significant correlations with climate parameters and national power production methods.

20. SUMMARY Marine electric propulsion systems offer a promising solution for reducing emissions and improving efficiency in the maritime industry. As technology advances and adoption increases, these systems are expected to play a significant role in shaping the future of marine transportation. Marine electric propulsion systems offer efficiency, reduced emissions, and lower costs, driving adoption in various vessel types and regions.