Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 191
ired. Or, if thepressure of the steam is reduced, the feed-water will be in excess, andwill escape by the overflow. Velocity in the Delivery Tube.—If H = the head of water in theboiler equivalent to the internal pressure, then the velocity {y) of a jet of water flowing fromthe boiler = Vij/H, and… … and— 2gP Fig. 190. From which it is clear thatthe velocity of a jet variesinversely as the square rootof its density (iv). Thus thevelocity of steam will be verymuch greater than the velocity of water under the same pressure,because of the very low density of steam compared with water;hence the…
Steam-engines
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