08-16-2017, 11:59 PM
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Fluid Mechanics for Power Generation
P M V Subbarao
Associate Professor
Mechanical Engineering Department
IIT Delhi
The Aelopile : Generation of Mechanical Motion
In 130BC. Hero, a Greek mathematician and scientist is credited with inventing the first practical application of steam power, the aelopile.
Simply a cauldron with a lid, the aelopile had two pipes that channeled steam into a hollow sphere.
The sphere, which pivoted on the steam pipes, had two nozzles situated on opposite sides of its axis.
Thus, the cauldron was fired, the water in it boiled, the steam was channeled into the sphere, and as the steam escaped through the nozzles, the sphere would spin.
It was a thought the device and a novelty.