Mechanical Knowledge Base: "External Turbine"

The external combustion engine is an external combustion closed-cycle reciprocating piston heat engine, which was invented in 1816 for Scotland's R. Sterling. It is also called the Stirling engine. The new type of external combustion engine uses hydrogen gas as the working medium (the medium for transferring energy is called working medium) and is filled with a certain volume of working medium in four closed cylinders. One end of the cylinder is a hot chamber and the other end is a cold chamber. The working medium is compressed in a low-temperature cold chamber and then flows into a high-temperature hot chamber for rapid heating and expansion. The fuel is continuously combusted in the combustion chamber outside the cylinder and passed through the heater to the working medium. The working fluid is not directly involved in combustion and is not replaced.

Because the external combustion engine avoids the problem of blast work performed by the conventional internal combustion engine, low noise, low pollution, and low running cost are achieved. The external combustion engine can burn a variety of combustible gases, such as natural gas, biogas, petroleum gas, hydrogen, and gas. It can also burn liquid fuels such as diesel and liquefied petroleum gas, and can also burn wood and use solar energy. As long as the thermal chamber reaches 700°C, the equipment can perform power operation. The lower the ambient temperature, the higher the power generation efficiency. The STM4-120 25kW class unit provided by the company has a power generation efficiency of 29.6%. The biggest advantage of the external combustion engine is that its output and efficiency are not affected by altitude, and it is very suitable for use in high altitude areas.

The device currently has three models to choose from, "cogeneration" type, "solar-fired hybrid power" type, "heat utilization" type, as well as automotive and mobile site power.