Creighton, William Henry Paul, 1859- · New York, J. Wiley & sons; [etc., etc.] · leaf 99
he stroke, itis evident that if we take an infinitesimal part of the stroke it 78 THE STEAM-ENGINE AND OTHER HEAT-MOTORS. becomes an infinitesimal part of the volume when multipliedby the area of the piston. It may be called dV and when mul-tiplied by P it becomes work. It could be written… … Fig. 49. variable and that must be V. The variable P must thereforebe expressed in terms of the variable V. But PlVl=PV, therefore P^-y1- Substitute this value of P and we obtain for the area BCDEunder the expansion curve =PiV1 (log, V2 -log, V,) -P{Vi log, yx =piyi lo& n CURVES AXD THE WORK OF…
Steam-engines · Heat-engines
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
