The introduction of a flywheel connected to the piston. The flywheel, rotated by the power stroke of the piston, would ensure smoother reciprocating movement of the piston. This addition allowed the steam engine to be adapted for use in a multitude of machines through the transmission of energy from the flywheel through a crankshaft. Components of a Steam Engine Although there are many different types of steam engines, the main function and components remain the same. A steam engine must contain the following elements:• Combustion chamber (Fireplace) – This is where fuel is burned in order to produce the heat needed to provide heat to the boiler to generate steam.• Boiler – A pressure vessel that stores water to be heated by the boiler to provide steam to drive the piston and power the engine. • Cold Well – In its simplest form, a cold well is a device used to vent residual steam into the environment or to redirect the steam back to the engine. for reuse (Lardner, 1840).• Engine unit – A device used to convert thermal energy generated by the expansion of steam into the mechanical energy required to do work, usually in the form of a piston, or