Creighton, William Henry Paul, 1859- · New York, J. Wiley & sons; [etc., etc.] · leaf 538
tercf the condenser. Hence the lowest pressure or the pressurein the last effect is that maintained in the condenser. The upperlimit is determined by other conditions. Having the upper andlower limits or total range of temperature and an assumed rangein each effect, the number of effects is easily… … Fig. 262. Section on AB. the first effect. As a rule, its pressure is from 7 to 10 pounds;above the atmosphere, hence its temperature is from 230° F. to240° F. If a vacuum of 27 inches is maintained in the last effect—corresponding temperature is 115° F.—there is a difference of240-115 = 125° F. If…
Steam-engines · Heat-engines
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