A gas turbine vehicle uses a gas turbine as an engine, and cheap heavy oil or pulverized coal as fuel. The strange thing is that gasoline engines were first used in cars before they were used in airplanes, while gas turbines were first used in aviation and only returned to the ground after "dominant" in the air.
The gas turbine locomotive consists of three parts: a compressor, a combustion chamber and a gas turbine.
The working principle of a gas turbine vehicle is like this. Air enters the compressor and is compressed to 4 to 5 atmospheric pressures. It enters the regenerator for heating, and then passes into the combustion chamber. At the same time, fuel is injected into the combustion chamber. It burns, expands, and becomes a high-temperature and high-pressure gas stream. This gas stream is introduced into the gas turbine, impacts the turbine blades, makes it rotate, drives the generator or drives the hydraulic torque converter, and then drives the wheels of the locomotive.
Gas turbine locomotives are simple in structure, light in weight, and small in size, so the power per unit weight is very large, generally reaching more than 8000 horsepower, and its speed is quite fast, and it can run more than 150 kilometers per hour. Although it eats "coarse grains"-heavy oil or coal powder, its digestion and absorption capacity is not bad, with a thermal efficiency of 16%, which is more than twice that of a steam locomotive.
Another feature of gas turbine vehicles is "protection from the cold", which increases thermal efficiency and power when operating at low temperatures. For example, when the temperature is 15℃, the power is 3000 horsepower, and when the temperature drops to 5℃, the power can reach 4000 horsepower. At the same time, it uses very little water, and it can maintain a long time operation with one addition of water, so it is especially suitable for deserts, cold, plateau, arid areas, and it is also suitable for operation on railway lines with steep slopes and heavy traffic.