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 278
ppUcable of the threeformulas, we have: DIRECT HOT-WATER HEATING 250 V2 L\- ( 0.226\ /? X 12 X — = —- X 0.1757 ( 0.33 + —^ )la d \ \ d / 0 which is the relation between R, L and d, as V cancels out of the eciuafiou 12 Xd Also when 7? = 1, L = G4.4 X 0.1757 / 0.226 f 0.33 + —pr and for 1 pipe, d = I… … Velocitiss in Feet per Second.Fig. 22. Comparative Friction Loss in Fittings. equivalent length of pipe is 0.5 X 2 = 1 ft. Again for 6 pipe L = 17.5, and for entry loss atboiler outlet allow /2 = 2 or 2 X 17.5 = 35 ft. of straight pipe as equivalent. For values ofL for 72 = 1 for other .sizes of…
Building · Heating · Ventilation
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