Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 165
hodof constructing this diagram is explained on p. 42. If now this steam be superheated to some temperature T^, theadditional heat required = Q, = 0-48(T, — Tj), and the area represent-ing the superheat is drawn by setting off first the entropy cd of thesuperheated steam on the scale of entropy,… … of constant pressure, and with the scale usually adopted is verynearly straight for small ranges of temperature. For a large range points may be found for inter-mediate temperatures, and afree curve drawn through them.Then the total heat required togenerate 1 lb. of superheatedsteam from water at…
Steam-engines
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