Does External Combustion Engine Use Turbines?

For example, an external combustion engine would use a flame to heat water into steam, then using the steam to turn a turbine. This is different from internal combustion, like in a car engine, where the gasoline ignites inside a piston, does work, and then is expelled.

Is steam turbine an external combustion engine?

A steam turbine is an external combustion engine which expends steam and converts its energy into useful work. Since the steam is produced somewhere outside the turbine (which is an engine) it is known as external combustion engine.

How does the external combustion engine operates?

An external combustion engine burns fuel externally, or outside the engine. An external combustion engine burns fuel to heat water and produce steam. The steam is under pressure and is used to push a piston back and forth inside a cylinder. As the piston moves back and forth, it moves a piston rod, which can do work.