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Turbines, though driven by vast volumes of water, are in reality impelled by countless isolated jets, or streams, all acting together, and a clear understanding of the behavior of any one of these facilitates and concludes a solution of the whole problem. Experimental researches.
We should properly go to see the Cauvery Falls, the water of which drives the dynamos there for the Kolar gold fields, sending the current that equals 11,000 horse power ninety-three miles by wire to Kolar, and fifty-seven to this place, to light the streets. Four hundred feet the water falls, in pipes, and drives the turbines; so in this, the dry season, there is little water to be seen.
Then, "Come on, Stanley. We'll round up every able bodied citizen in Zyobor and get to work. I suppose they have some kind of rock drilling machinery here?" They had. And they strangely resembled our own rock drills: revolving metal shafts, driven by gas turbines, tipped with fragments of the same crystal that glittered so profusely in the palace walls.
Up the cliff still roared the thunder of the rapids, to-day untamed by the many turbines and power-plants along the shore. But louder than the river rose the tumult of the rejoicing throng: "They come! They come!" "Where?" questioned Beta. "See them, boy?" "There! Look! How swift! My trained men can outfly me now more luck to them!"
"There was a fool of a night watchman at the power plant I reckon he thought I was going to steal the turbines, but he finally let me in, and I set him to starting up the power while I cleaned up Murphy's job and put in the new rope." "All by yourself?" asked Peterson. "Sure thing. Then I got her going and she worked smooth as grease.
The greatest efficiency is obtained, theoretically, when the vane velocity is half that of the steam, the latter, after passing round the curved inside surfaces of the vanes, being robbed of all its energy and speed. The turbines to be described work on the De Laval principle, which has been selected as the easier for the beginner to follow. A Very Simple Turbine.
Overnight, all previous forms of power generation had become obsolete. Who would buy electric power when he could generate his own for next to nothing? Billions upon billions of dollars worth of generating equipment were rendered valueless. The great hydroelectric dams, the hundreds of steam turbines, the heavy-metal atomic reactors all useless for power purposes.
Literature relating to turbines probably stands unrivaled among all that concerns questions of hydraulic engineering, not so much in its voluminous character as in the extent to which purely theoretical writers have ignored facts, or practical writers have relied upon empirical rules rather than upon any sound theory.
Being originally a reciprocating plant it was difficult to make the allotted space for the turbines suitable for their proper installation.
In the latter, the oil tanks are usually placed a considerable distance from the turbine or turbines, with the oil-cooling arrangements in fairly close proximity. The total length of the oil circuit is thus considerably increased, incidentally increasing the relative cooling capacity of the whole plant, and thereby reducing the loss of oil by vaporization.
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