Mechanical equipment of buildings; a reference book for engineers and architects (1916)
Harding, Louis Allen, Willard, Arthur C. (Arthur Cutts), 1878-1960 · New York Wiley · leaf 407
ob-taining a greater amount of useful work from a given weight of steam supplied than otherwiseresults when the machine is operated with atmospheric exhaust. The obvious result, when acondenser is added, is a saving in fuel. Referring to Fig. 1 and assuming that the expansion of the steam in the… … Fig. l. cycle.) For an initial absolute pressure p\ = 160 lb. per sq. in. and terminal pressure (atmos-pheric) p2 = 14.7 lb. per sq. in., which is also assumed as the back pressure, the heat equivalentof the work obtained from one pound of steam is i\ — i2 = 1196 — 1022 = 174 B.t.u. (Motherdiagram)…
Building · Heating · Ventilation
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