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The Steam Engine
Transcript of The Steam Engine
- Born on 1650
- In 1698, thought of the problem how to pump water out of coal mines more efficiently
- Created machine called 'Fire Engine' (raised water out of mines by fire)
Background of James Watt
- Greek scientist Heron of Alexandria
- First person to harness power of steam
- Developed a fountain, a wind powered organ, a fire engine, and the steam engine
- Born on February 24, 1664
- English blacksmith, iron merchant, engineer
- Thought Savery's steam engine as inefficient
- 1712, finished the steam engine which the steam pushed piston in one direction
- Born in Greenock, Refrewshire, on
- Father (unknown) was a shipwright, ship owner, contractor, and town's chief baillie
- Mother was Agnes Muirhead
Came from notabe family, well educated
Early Life of James Watt
- Homeschooled by mother
Moved to Greenock Grammar School
- Interested in mathematics and engineering
Showed no interest to literature
The Spark of James Watt
- 1763, Newcomen's model of steam engine
was brought to James for repair
- Realized 3/4 of the heat of the steam was
wasted, very inefficient
- In order for the engine to be more
efficient, the cylinder had to be as hot
as the steam
- Must have some cooling taking place
to have steam condensed
- Figured if the steam had a separate
condenser, the vessel could be kept
cool and cylinder hot at the same
- In 1781, he patented a steam engine that produced rotative motion
- Didn't have capital to
spend on experiments and
- Lucky enough to find two men to provide capital for him: Roebuck and Boulton
Thomas Newcomen's Steam Engine
- Depended on atmospheric pressure to
push a piston (a sliding piece of metal moved
by pressure) into a cylinder (a hollow tube)
and create a vacuum by the cooling steam
- Strokes of engine were still quite inefficient
- Resulted in 75% saving in fuel
- Allowed the use of steam pressure to move piston in both directions (giving engine more flexibility)
- Everything was done by workers
- Slow and inefficient working style
- Moving force behind Industrial Revolution
- Widespread commercial use (powering mills, driving machines in factories, faster way of
transportation of goods)
- Created products in mass production
- More people could afford products (easier made)
- Faster transportation (railway locomotives)
- Industrialized countries made more money than non-industrialized countries (manufactured goods > raw goods)
- Machines took over people's jobs (unemployment)
Can we still use it?
- Possibly, but rarely anyone will use it
- Railway locomotives with steam engines transformed into trains (modern)
- Made lots of money off his steam engines
- Retired in 1800 from his business
- Died on August 25, 1819
- Unit of electrical power named "Watt" to honor him in 1882
- Wikipedia Contributors. "Steam Engine." Wikipedia. Wikipedia, The Free Encyclopedia., 25 Mar. 2013. Web. 26 Mar. 2013. <http://en.wikipedia.org/wiki/Steam_engine>.
- Lira, Carl T. "Watt Biography." Watt Biography. N.p., 11 Dec. 2012. Web. 26 Mar. 2013. <http://www.egr.msu.edu/~lira/supp/steam/wattbio.html>.
- Bellis, Mary. "James Watt - Inventor of the Modern Steam Engine." About.com Inventors. N.p., n.d. Web. 26 Mar. 2013. <http://inventors.about.com/od/wstartinventors/a/james_watt.htm>.
- Lambert, Tim. "A Short Biography of James Watt." A Short Biography of James Watt. N.p., n.d. Web. 26 Mar. 2013. <http://www.localhistories.org/watt.html>.
- Bellis, Marry. "Thomas Newcomen." About.com Inventors. N.p., n.d. Web. 26 Mar. 2013. <http://inventors.about.com/od/nstartinventors/a/Newcomen.htm>.