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Essay Galaxy - Steam Turbines Steam Turbines

The invention of the water turbine was so successful that eventually, the idea came about for extracting power from steam. Steam has one great advantage over water-it expands in volume with tremendous velocity. To be the most effective, a steam turbine must run at a very high speed. No wheel made can revolve at any speed approaching the velocity that a steam turbine can. By utilizing the kinetic energy of steam flow, the turbine could achieve a higher efficiency. As a result, the steam turbine has supplanted the reciprocating engine as a prime mover in large electricity-generating plants and is also used as a means of jet propulsion. The action of the steam turbine is based on the thermodynamic principle that when a vapor is allowed to expand, its temperature drops. In turn, its internal energy is decreas....

Number Of Pages: 2 Number Of Words: 468

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