Thermodynamics of the steam-engine and other heat-engines (1907)
Peabody, Cecil H. (Cecil Hobart), 1855-1934 · New York, J. Wiley & sons; [etc., etc.] · leaf 492
Not uncommonly turbines ofthis type are run under speed asa matter of convenience. Sup-pose, for example, the speed ofthe vanes is only 0.3 of thevelocity of whirl, instead of0.5; that is, in this case takeV = 1050. This case is represented by Fig. 104, from which it is evidentthat Vj. = V/ = at =… … Fig. 104. 484 STEAM-TURBINES consequently the exit velocity of whirl is Wf = ek = 1050 — 1980 = — 930. Consequently the work delivered to the vane is -PV = -[3030 - (- 930)] 1050=- 3960 X 1050 00 o w= 416000 — • g But the kinetic energy is wV^^ -^ 2g, so that the efficiency is 2 416000 X 2 -r- 3500…
Thermodynamics · Steam-engines · Heat-engines
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
