Question

The Bell and Gossett pump runs at the following conditions: Q = 1050 gal/min = 2.34 ft³/s and H = 105 ft, delivering water at 20ºC through a long, smooth, 8-in-diameter pipe. Neglect minor losses. How long is the pipe? For water at 20ºC, take ρ = 998 kg/m³ = 1.94 slug/ft³ and μ = 0.0010 kg/m·s = 2.09E-5 slug/ft·s. Take π = 22/7. Round the final answer to one decimal place. (in miles)

Answer 1

Answer! Given that, A51050 gal/min = 2.34 pt/ H =105ft Diameter 0 = 8 in D = 2 ft els are a # = p13 *=) A = 23 ft2 Density. P=1194 Slug/ft3 Dynamic viscosity M = 2009 X40-5 slug ft-S velocity v o V= 2034 (22163) V = 6.7 ft/5 Heser Reynolds number, Re= Pro Re = 1094860982/3 2009810-5 Re=414,609,250 4 > 2000 NOT LAMINAR Flow ITS TURBULENT FLOW.

Praction fractor) fe 0:316 . (Reill f. 0.316 (14689.250474 f = 0.012 Now, Head loss, HE FLV2 ** 280 2105 Length of pipe, [19-9Davitational acceleration] = 32.17 pt/52 L=H290 fu2 1 - 105 X 2X 32.17X (3/3) 00012 X(6.72 L= 4503.8 01 53868 l=8360.8 ft