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A steam turbine is a rotary engine that converts the thermal energy of steam into mechanical energy. It consists of a rotor with attached blades, enclosed in a casing. Steam is directed against these blades, causing the rotor to spin. This rotational force can then be used to generate electricity or power ships.1

Steam turbines are highly efficient and can produce immense power in a compact space, making them the primary choice for large-scale electricity generation and marine propulsion. Modern units can generate over 1.3 million kilowatts of power on a single shaft. The performance of a steam turbine is measured by its heat rate, which indicates how much heat is needed to produce a unit of electrical power; a lower heat rate signifies better efficiency.12

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