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Questions and Answers
Which type of engine involves the combustion of fuel inside the working cylinders?
Which type of engine involves the combustion of fuel inside the working cylinders?
- Combustion engine
- External combustion engine
- Internal combustion engine (correct)
- Steam engine
What is the working fluid in an external combustion engine?
What is the working fluid in an external combustion engine?
- Steam (correct)
- Heat energy
- Fuel
- Air
Which type of engine converts thermal energy into mechanical work?
Which type of engine converts thermal energy into mechanical work?
- Steam engine
- Combustion engine
- Internal combustion engine
- External combustion engine (correct)
What is an example of an external combustion engine?
What is an example of an external combustion engine?
In which type of engine does the combustion of fuel take place outside the working cylinders?
In which type of engine does the combustion of fuel take place outside the working cylinders?
What is the purpose of internal combustion engines?
What is the purpose of internal combustion engines?
What is the purpose of external combustion engines?
What is the purpose of external combustion engines?
How does an external combustion engine convert thermal energy into mechanical work?
How does an external combustion engine convert thermal energy into mechanical work?
Give an example of an external combustion engine.
Give an example of an external combustion engine.
What is the working fluid in an external combustion engine?
What is the working fluid in an external combustion engine?
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Study Notes
Classification of Heat Engines
- Heat engines can be classified based on where the combustion of fuel takes place
- Two main categories of heat engines: internal combustion engines (I.C. Engines) and external combustion engines (E.C. Engines)
Internal Combustion Engines (I.C. Engines)
- Combustion of fuel releases heat energy inside the engine cylinders
- Examples: gasoline engines, diesel engines
External Combustion Engines (E.C. Engines)
- Heat produced by combustion of air and fuel is transferred to another fluid
- Working fluid is taken to an external combustion engine
- Heat energy in the fluid is utilized to convert thermal energy into mechanical work
- Examples: steam engines, steam turbines
- In steam engines, fuel is used to produce steam, which is then supplied to the steam engine to produce mechanical work
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