Internal Combustion EnginesLaajuus (3 ECTS)

Objective

After completing the course the student is able
1. to describe diesel and gas engine types
2. to calculate the engine power and the efficiencies and explain how different factors affect different efficiencies and achieved power
3. to describe the engine indicator diagram and explain the variables and its use
4. to calculate the engine air requirements, flue gas composition
5. to explain the different gas exchange methods
6. to calculate turbocharging and to explain the charging systems
7. to describe the fuel supply systems activities, structures and control
8. to calculate measuring examples of an injection system
9. to describe the factors affecting the quality of combustion and injection
10. to explain how flue gas emissions arise and how they can reduce
11. to describe vibrations born, and to explain the mechanism
12. to explain the structure of the main engines and materials

Content

1. Basics of internal combustion engines, balancing of mass forces
2. Gas exchange and turbo and mechanical charging, variable valve timing
3. Gasoline engines, fuel injection in intake manifold, direct injection and its control, gas engines, lean burn
4. Diesel engines, injection methods and control, power plant and marine engines, two stroke diesel engines
5. Engine components, pistons, piston rings, connecting rods, valves, crankshafts, camshafts, bearings, flywheel, cylinders
6. Engine cooling, reducing of friction, lubrication and maintenance
7. Control of noise and vibration, measurements in combustion engines

Qualifications

Indroduction of Energy Technics

Assessment criteria, satisfactory (1)

1. The student is able to calculate the engine power and efficiencies, and to explain how different factors affect different efficiencies and achieved power
2. The student knows the fuel injection methods of engines and their control principles
3. The student is familiar with the principles of gas exchange and its significance on the engine performance
4. The student is familiar with the engine components, their constructions and maintenance

Assessment criteria, good (3)

1. The student is able to calculate the engine power and efficiencies, and to explain how different factors affect different efficiencies and achieved power
2. The student knows the fuel injection methods of engines and their control principles
3. The student is familiar with the principles of gas exchange and its significance on the engine performance
4. The student is familiar with the engine components, their constructions and maintenance
5. The student knows the combustion of engine and can explain the factors which have an important impact on exhaust emissions

Assessment criteria, excellent (5)

1. The student is able to calculate the engine power and efficiencies, and to explain how different factors affect different efficiencies and achieved power
2. The student knows the fuel injection methods of engines and their control principles
3. The student is familiar with the principles of gas exchange and its significance on the engine performance
4. The student is familiar with the engine components, their constructions and maintenance
5. The student knows the combustion of engine and can explain the factors which have important impact on exhaust emissions
6. The student knows the potential of reducing the friction in engines and the basics of lubrication, maintenance and vibration damping in engines