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The steam engine was an engine powered by steam It provided an important source of power independently The steam engine played a major role in manufacturing and transportation during the Industrial Revolution The challenge of improving the steam engine was the beginning of the science of thermodynamics The steam engine was a very important invention Steam can be made at any time simply by boiling water so it is more dependable than wind or water energy Norbeck 34-36 The heating and cooling of steam in cylinder causes pistons to move up and down The simplest of a steam engine is used as a boiler This was a common household heating system The efficiency of the steam engine was very low there fore they were later replaced by steam turbines The first piston engine was invented in 1690 by a French inventor named Denis Papin and was used for pumping water Why not find a way to use heat energy Garrat 12 It had a single cylinder that operated as a boiler a small amount of water was added and heated to form steam The steam raised the piston in the cylinder after it was raised the heat was removed the steam condensed and the air pressure on the upper side forced the piston down In 1705 Thomas Newcomen invented the first practical steam engine Steam operates the engine by a slide directing steam from on one side of the piston to the other As the piston moves the piston rod turns the flywheel half a turn The steam engine doesnt create power I t uses steam to change heat energy released by burning fuel into mechanical energy Steam engines are considered to be external combustion engine because the fuel is burned outside of the cylinders An example of internal combustion engine is an automobile The power is provided by the rapid burning of gasoline inside the cylinders which is ignited by the spark plug The
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