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 395
dischargecoefficient may vary with the size of the pump. Having assumed the discharge coefficient, the dU — -150 gso S,20n. 10 n ^ •^^ ^ / y / / 1 I l_ 0 I 2 3 4 5 6 7 8 9 10 II 12 13 14 15 leS>e in Inches Fig. 24. capacity of a pump for a unit head can be computed. The following notation will… … 40 60 63 79.5 100 126 159 200 251 316 400 500 630 795 WOO q= (Gallon per Minute) Fig. 25. 0.7854 (P A = area of discharge, square feet, =Q = capacity of pump at unit head = /— 144 gal. permin. Now PUMPS 369 , . . , , r. p. m. 11 = speed of pump at unit head = —,—. ; D2 = outside diameter of vanes,…
Building · Heating · Ventilation
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