Ice-making Machines: The Theory of the Action of the Various Forms of Cold-producing Or So-called Ice MachinesD. Van Nostrand, 1892 - 190 стор. |
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Absolute pressure absorbed absorption chamber absorption machine adiabatic air machines ammonia gas amount anhydrous ammonia assuming brine tank British Thermal Units calculated capacity per pound carbonic acid Carnot cycle cent chines clearance spaces compression cylinder compression machines compressor cooler cooling cubic foot deduced degrees Fahr denser density equation ether expansion cylinder experiments foot-note formulæ friction ft.-lbs given gives heat of vaporization hour per horse-power ice-melting capacity latent heat Ledoux's table liquid loss melting capacity monia negative heat units obtained P₁ perature piston pound of coal pression produced Prof pump Q₁ quantity of heat range of temperature refrigerating coils refrigerating effect Regnault reservoir saturated specific heat steam sulphur dioxide superheat superheating T₁ T₂ tempera Temperature corresponding tests thermal units tion ture Units per pound V₁ valve vapor volume waste space Zeuner's
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Сторінка 13 - B with the sound velocity where y is the ratio of the specific heat at constant pressure to the specific heat at constant volume, and p is the gas pressure.