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 270
lb. per sq. in. The work W performed is (P — P3) {V^ — Vi)ft.-lb. The total work for the entire stroke is therefore. W = Wi + W = (P,- P2) Fi + (P - P3) (F2 - Vi) it Ah. Economy of Using Steam Expansively. The per cent gain m work obtained per unit vol- W — Wi ume or weight of steam used, from the… … FiG. 18. Section of Steam Engine Indicatob.oretical mean effective pressure (m.e.p.) for the entire piston stroke when the initial pressure (Pi), back pressiure (P3) and ratio of expansion {*■ = TT ) or cut off [ — ) are given or assimied is follows: Area CDEBA - Area GFBA as m.e.p. = Pe = length…
Building · Heating · Ventilation
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