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Ch. 12: Mechanical Appliances

Ch. 12: Mechanical Appliances Page of 331 Ch. 12: Mechanical Appliances Text size:minus plus Restore normal size   Mail page  Print this page
VARIOUS MECHANICAL APPLIANCES.
20I
" carried" water is the most important of the sources of loss not taken into account in equations (i) and (2). Hence the approximate best speed as calculated from equation (1) differs least from the actual best speed as found by experiment, in the case of the " Pelton bucket," and most in the case of the " curved bucket " (see Fig.
56). It is perfectly sale to say the Pelton bucket should have one-half the speed of the supply jet for best effect. It is plain that the Pelton wheel has certain advan-
* The Partial Turbine here mentioned is a Tangential Wheel with inner feed, and was Specially designed fr.r a small supply jet.
Ch. 12: Mechanical Appliances Page of 331 Ch. 12: Mechanical Appliances
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