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You can't give diagrams on a basic text-editor like this one!
To explain for reciprocating engines:
A "Two-stage" steam-engine is properly called "compound", and consists of 2 cylinders each with its own piston, piston-rod, crosshead and connecting-rod linked to the single crankshaft.
The "live" steam at high-pressure (from the boiler via the throttle-valve or regulator, and superheater) is admitted to the first cylinder and partially expanded during its working stroke there. On exhaust it is the sent to the second cylinder and expanded further.
The steam is thus expanded through a much larger pressure-gradient than would be the case in a "simple expansion" engine, hence obtaining the maximum practicable power from each does of steam. The only other way you can do that is to use an unfeasibly long cylinder, since steam expands roughly hyperbolically, according to the Gas Laws: pressure X volume = a constant.
To compensate for the steam in the second cylinder being at a much lower starting pressure, that, the Low-pressure Cylinder, is of larger diameter than the High-pressure Cylinder, to equalise the force acting upon both pistons. Larger engines were also built, with an interposed Intermediate pressure Cylinder (Triple Expansion), and some of the largest had a fourth cylinder still. The effect is the same - obtaining the most work from a given quantity of steam.
Incidentally you sometimes hear people describe compound engines as using "the same steam twice". That is wrong, but even professional traction-engine drivers and the like in the late-19 / early-20C held this misunderstanding.
The steam-turbine.
A steam-turbine is a form of compound steam-engine, though rotary not reciprocating, because it expands the steam from inlet to exhaust through the blades on a series of progressively larger discs along the rotor.As pressure falls along the series, the disc radius increases to equalise the torques produced by each disc.
What else can I help you with?
What set the stage for the Industrial Revolution?
The Agricultural Revolution
What happens if your radiator goes out?
car overheats and produces steam/smoke. may crack engine block or head.
What type of combustion engine in the steam engine?
A steam engine is an external combustion engine. As the steam engine combusts outside of the engine itself.
What are the parts of a steamboat?
The parts of the steamboat include the paddlewheel, the steam engine, the passenger decks, the calliope, the pilot house, the smoke stakes, the hull, the steam whistle, and the landing stage.
What was the rotary steam engine?
A rotary steam engine was a fire engine basically
How is steam created in a steam engine?
Steam is created in a steam engine by heating water in a boiler until it turns into steam. The steam then builds up pressure, which is used to power the engine and drive machinery.
When was the steam engine improved?
the steam engine was improved in 1769.
A kind of engine that uses water steam?
A steam engine?
What was developed first gas engine or steam engine?
Steam
What is the function of super heater?
A superheater increases the temperature of the steam for use in a turbine or an engine. Without the additional heat, a multi-stage turbine or engine will get moisture (water) in the lower pressure stages as the steam cools, causing erosion of the blades or cylinders.
What are steam engines?
noun: an engine worked by steam, typically one in which a sliding piston in a cylinder is moved by the expansive action of the steam generated in a boiler.A steam engine is an external combustion engine. As the steam engine combusts outside of the engine itself.
How is steam made in a steam engine?
Steam in a steam engine is made by heating water in a boiler until it turns into steam. The steam is then directed into a cylinder where it pushes a piston, creating mechanical energy that powers the engine.
