Lämpömoottorityyppi

Lämpömoottorityyppi refers to a classification of heat engines. Heat engines are devices that convert thermal energy into mechanical work. The primary way to categorize these engines is by the source of heat and the working fluid they utilize.

One major category is the internal combustion engine, where fuel is burned inside the engine itself, creating high-pressure gases that drive a piston or turbine. Examples include gasoline engines, diesel engines, and gas turbines. Another broad category is the external combustion engine, where the heat source is external to the engine's working fluid. The most common example is the steam engine, which uses heat to boil water and create steam, driving a piston or turbine. Stirling engines are also external combustion engines that operate on a closed regenerative thermodynamic cycle.

Further classifications can be made based on the thermodynamic cycle the engine operates on, such as the Otto cycle for spark-ignition internal combustion engines or the Diesel cycle for compression-ignition engines. Steam engines typically operate on the Rankine cycle. The method of heat transfer and the working fluid's phase changes also distinguish different types of lämpömoottorityyppi. Understanding these types is crucial for selecting appropriate engines for various applications, from transportation to power generation.