Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 67
)ressureswithout expansion (Fig. 3-i). For steam of 50 lbs. pressure, admitted through the whole lengthof stroke and exhausted against atmospheric pressure, the work done 3 CuJfjt 8-4 CuLjt … Fig. 34. per pound is shown by the shaded area A. The value of this area inheat-units may be obtained by direct measurement with the plani-meter, or it may be obtained from the steam Tables, thus: theexternal latent heat of steam at 50 lbs. pressure is 77*7 ; the externallatent heat of {ac~ag) lb.…
Steam-engines
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