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Transcript of Steam Engine
By: Tasnuva Mahi & Manisha V
What is a steam engine?
A steam engine is an engine that uses steam to power itself. This device converts the potential energy that exists as pressure in steam, and converts that to mechanical force.
History of the steam engine
Hero of Alexandria
Newcomen's Piston steam engine
Watt's Steam Piston Engine
History of the Steam engine
Type of engines
There are 2 types of heat engines:
External combustion engines
Internal combustion engines
The steam engine is an example of an external combustion engine, which means that the fuel is burned outside the cylinder that produces power.
Types of engines
We are going to talk about the piston steam engine in more detail!
Components of the Piston steam engine:
How does the Piston engine work:
Uses of the steam engine
No Geographical limits.
Disadvantages/ Environmental hazards
Unsafe to use because its boiler can burst due to excessive steam pressure.
Low efficiency! (30% only)
Marine steam engine
Piston steam engine
To Power Locomotives
Electricity Generation in Nuclear Power PLants
A steam engine has low efficiency. The thermal efficiency of a steam engine is about 30% which means that a steam engine can convert only 30% of the heat energy into work.
Steam power is the power that is produced by heating water and creating steam, which is oderless, invisible gas consisting of vaporized water.
Chemical to Thermal
Thermal to Mechanical
Past and Future of
Intended Final Use