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 734
N MACHINES (377 Then the heat (B.t.u. per lb.) which the medium is capable of extracting from the surround-ings will be the differen e between the heat c ntent of the final and initial state*. The initialstate being liquid and the assumed final state dry saturated gas, this difference is Ri - Hs -… … Compressor Motor Refrigerator Direct Expansion SystemFig. 2. For the example quoted, Ri = 530.7 - 71.3 = 459.4 B.t.u. The refrigerating effect of1 cu. ft. of the saturated vapor is Ri R2 = — B.t.u. v. (2) and for the example cited is Rt = —- = 25.5 B.t.u. 18 The weight of the refrigerating medium…
Building · Heating · Ventilation
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