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Steam Engine

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by

tasnuva mahi

on 18 December 2013

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Transcript of Steam Engine

Steam Power
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.
Steam Power
History of the steam engine
Hero of Alexandria
Thomas Savery
Thomas Newcomen
Newcomen's Piston steam engine
James Watt
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
Advantages
No Geographical limits.
Disadvantages/ Environmental hazards
Unsafe to use because its boiler can burst due to excessive steam pressure.
Low efficiency! (30% only)
Horizontal stationary
Marine steam engine
Steam locomotives
Steam turbine
Piston steam engine
To Power Locomotives
Electricity Generation in Nuclear Power PLants
The End
Thank you
Efficiency:

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.
Boiler
Steam
Steam engine
Chemical to Thermal
Thermal to Mechanical
Efficiency
Past and Future of
Steam Power
Intended Final Use
Full transcript