The cycle in which heat is supplied at constant volume and rejected a...
The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as A Dual combustion cycle. The Atkinson-cycle engine is a type of internal combustion engine invented by James Atkinson in 1882. The Atkinson cycle is designed to provide efficiency at the expense of power density. A modern variation of this approach is used in some modern automobile engines.
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The cycle in which heat is supplied at constant volume and rejected a...
Atkinson Cycle:
The Atkinson cycle is a thermodynamic cycle that is used in internal combustion engines. It is a modification of the Otto cycle, which is used in most gasoline engines. The Atkinson cycle is characterized by a longer power stroke than the compression stroke, which allows for greater efficiency.
Process:
The Atkinson cycle consists of four processes:
1. Intake: In this process, the fuel-air mixture is drawn into the cylinder.
2. Compression: In this process, the mixture is compressed by the piston.
3. Power: In this process, the mixture is ignited, and the resulting expansion pushes the piston down, producing power.
4. Exhaust: In this process, the burnt gases are expelled from the cylinder.
Advantages:
The main advantage of the Atkinson cycle is its greater efficiency compared to the Otto cycle. This is because the longer power stroke allows more energy to be extracted from the fuel-air mixture.
Applications:
The Atkinson cycle is used in some hybrid cars, such as the Toyota Prius. In these cars, the Atkinson cycle is used in conjunction with an electric motor to improve fuel efficiency.
Conclusion:
The Atkinson cycle is a thermodynamic cycle that is used in internal combustion engines. It is characterized by a longer power stroke than the compression stroke, which allows for greater efficiency. The Atkinson cycle is used in some hybrid cars, such as the Toyota Prius, to improve fuel efficiency.