Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 140
e R„ representing theheat quantity is drawn above thezero line on the base os (Fig. 139).For the heat-exchange during the ex-pansion part of the stroke, the heatpasses conversely from the metal tothe steam ; the interchange is con-sidered negative, and the rectangleRj is drawn below the zero line… … Fm. 1.S9. and below the zero line 124 STEAM-ENGINE THEORY AND PRACTICE. for positive exchange—that is, from steam to metal. Hence theexhaust rectangle R^ is drawn above the zero line on the base mi,and the compression rectangle R,^ is drawn below the zero line onthe base om. The positive and…
Steam-engines
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