1. Different properties
A piston engine relies on fuel combustion to drive the piston movement, which is then converted into crankshaft rotation, similar to an ordinary internal combustion engine. A jet engine consists of an inlet, a compressor, a combustion chamber, a turbine, and a tail nozzle. After the fuel is burned, the high-temperature and high-pressure gas drives the turbine to rotate. The turbine is coupled with the compressor, so that the compressor rotates, sucks air into the engine, and pressurizes it. Dozens of times. The high-temperature and high-pressure gas comes out of the turbine and enters the tail nozzle before being ejected to obtain thrust.
2. Different uses
Turbine engines include steam turbine engines, which are mainly used for power generation, and gas turbine engines, which are mainly used for aircraft engines and are rarely used for power generation.
3. Different structures
Turbine engines are composed of a compressor and a turbine. The front end is a compressor, through which the fresh air is compressed to more than 50Bar, and then burned together with the fuel in the combustion chamber and then rushed to the turbine. Part of the energy of the gas is transferred to the turbine, causing the turbine to rotate at high speed to drive the rotation of the compressed air. The compressor and turbine are connected to a shaft, and the gas is finally ejected at high speed, which generates thrust to propel the aircraft forward.
The structure of turbines differs between power generation and aircraft engines. In terms of power generation, turbines should try to use the energy of gas as much as possible. Especially steam turbines are very long and divided into many stages to use up the energy of steam as much as possible.