The Transmission of Power by Compressed AirD. Van Nostrand Company, 1890 - 133 páginas |
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Términos y frases comunes
absolute temperature adiabatic bers body Boyle's law British Thermal Unit Bushnell calculated CHAPTER Clausius cloth Complete Expansion compres compressed air compressed-air engine CONDUCTION OF HEAT constant pressure constant volume cooling the air cylinder dead spaces density diameter EFFECTS OF MOISTURE equation final temperature formula full pressure GAY-LUSSAC'S LAW given Gothard Tunnel Harlem River heat at constant heat of compression hence hydraulic Illustrated inch increased initial and final INJECTION OF WATER internal heat kilogram kilogramme loss of pressure machinery machines Mallard morocco obtain pansion perature performed permanent gases pipes piston plunger pounds Practical pression Prof pump quantity of heat ratio reservoir saturated Second edition single-acting sion specific heat steam supplied surrounding atmosphere Theory thermodynamics tion transmission Treatise Tunnel ture ture Degrees valves vapor W₁ water-vapor weight of air Wet Compressors Whitneyville wood-cuts working-cylinder
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Página 26 - ... of the head; the absolute initial pressure was 5.70 atmospheres, and it was reduced to 5.50 atmospheres whilst there was an expenditure at the rate of 64 cubic feet of compressed air per minute. In the middle of the tunnel, through a length of pipe of 3.8 miles, the absolute pressure fell only from six atmospheres to 5.7 atmospheres, or to .95 of the original pressure. At the Hoosac Tunnel the air was carried through an 8-inch pipe from the compressors to the heading, a distance of 7,150 feet,...
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