The design of marine engines and auxiliaries (1916)
Bragg, Edward Milton, b. 1874 · New York, D. Van Nostrand Co. · leaf 177
rs. 170. Air-pump Proportions. — The speed of the bucket shouldbe from 200 to 300 feet per minute, the lower speed to be usedwith jet condensers. The speed of the water and air throughthe valves will be greater than this, as the net area through thevalves is usually from 22 to 25 per cent of the… … Fig. 87. CONDENSERS AND AIR PUMPS 159 The velocity of the air and water through the air-pumpsuction pipe should be from 10 to 15 feet per second based uponthe effective strokes of the pump. The size of the dischargepipe can be much smaller as the air is much reduced in volumewhen discharged from…
Marine engines
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