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 332
ty is much aggravated on accountof the negative work of idly drawing in, compressing, and expel-ling .air. Fig. 74 shows a diagram taken from the same engine as Fig.72, page 313, but with a fifty-pound spring and a stop to prevent ECONOMY AND EFFICIENCY 323 the indicator piston from rising too high… … Fig. 74. shown by the curve ah, after which the engine draws a chargeof air (without gas) and compresses it on the upper curve fromc to d\ on the return stroke the indicator follows the lowercurve from d to c, so that the loop represents work done by theengine; finally the air is exhausted, while…
Thermodynamics · Steam-engines · Heat-engines
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