A Stirling engine is a heat engine that operates on the Stirling cycle, a closed thermodynamic cycle. It works by cyclically compressing and expanding a working fluid (usually a gas) at different temperature levels. The thrust force is not typically associated with Stirling engines, as they are not used for propulsion like rocket engines or jet engines.
It’s important to note that Stirling engines are not typically characterized by thrust force, as they are not designed for propulsion in the way rockets or jet engines are. Instead, they are known for their high efficiency and ability to convert heat energy into mechanical work, making them suitable for certain applications such as electricity generation, waste heat recovery, and solar power.
The thrust equation for a turbojet engine using control volume analysis is expressed as:
where,
- is the thrust force,
- ṁe is the mass flow rate of exhaust gases in kilograms per second (kg/s).
- is the Exhaust velocity at the nozzle exit in meters per second (m/s).
- ṁ0 is the mass flow rate of inlet gases in kilograms per second (kg/s).
- is the Exhaust velocity at the nozzle Inlet in meters per second (m/s).
- is the Pressure at the nozzle exit in pascals (Pa).
- is the Pressure at the nozzle inlet in pascals (Pa).
- is the Area of the nozzle exit in square meters (m²).