Vapors for heat engines, including considerations relating to the use of fluids other than steam for power generation; a study of desirable vacuum limits in simple condensing engines: methods for computing efficiencies of vapor cycles with limited expansion and superheat; a volume-temperature equation for dry steam, and new temperature-entropy diagrams for various engineering vapors (1912)
Ennis, William D. (William Duane), b. 1877 · New York, D. Van Nostrand Company · leaf 49
= c(tg—ta), or, very :nearly, 42 B.T.U.: while agfe = (P0-Pa)Fe=~X 25.4 (1.271-0.3386) = 4.4 B.T.U. The 77o 40 VAPORS FOR HEAT ENGINES ratio of , additional work obtained to additional heat con-sumed, when the low temperature limit is changed from110° to 68°, is 4.4^-42 = 0.105; which is less than… … mn Fig. 6.—Effect of Change in Back Pressure t (absolute temperature), and I be the corresponding valueof the latent heat of vaporization, the area agfe is t (t-ta). EFFICIENCIES IN THE RANKINE CYCLE 41 When this is small in relation to the area tnnga — c(tff — ta),or when the quotient tc has a…
Heat-engines · Vapors
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