The steam engine and turbine; a text-book for engineering colleges (1911)
Heck, Robert Culbertson Hays, 1870- · New York, D. Van Nostrand company · leaf 57
Let / stand for internal work, or change of internal energy, either insensible heat or as disgregation work, or both, and U for external workin foot pounds, so that AU is the same quantity reduced to heat units;then if Q is a general symbol for heat imparted, we have the fundamentalequation Q =… … Fig. 30. — Expansion at Constant Pressure. (6) Expansion at Constant Pressure. — In Fig. 30 is representedthe operation of expanding one pound of air from volume Vi at tempera-ture ^1 to V2 at t2, under the pressure p, the external work being shownby the shaded rectangle 12BA. The amount of this…
Steam-engines · Steam-turbines
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