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3. 14-35E A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expression Havailable = Ho - a V², where the shutoff head, H₁ = 125 ft of water column, coefficient a = 2.50 ft/(gpm)², available pump head Havailable is in units of feet of water column, and the capacity V is in units of gallons per minute (gpm). Estimate the capacity delivered by the pump. Answer: 6.34 gpm 22-21 = 22.0 ft (elevation difference) D 1.20 in (pipe diameter) KL, entrance = 0.50 (pipe entrance) KL, valve 12.0 (valve 1) KL, valve 2 6.8 (valve 2) KL, elbow = 0.34 (each elbow-there are 3) 1.05 (pipe exit) KL. exit L=124 ft (total pipe length) e = 0.0011 in (pipe roughness) V₁0 Reservoir 2₂-21 Ho5 Valve 1 Pump V₂20 Reservoir Valve 2

3. 14-35E A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expression Havailable = Ho - a V², where the shutoff head, H₁ = 125 ft of water column, coefficient a = 2.50 ft/(gpm)², available pump head Havailable is in units of feet of water column, and the capacity V is in units of gallons per minute (gpm). Estimate the capacity delivered by the pump. Answer: 6.34 gpm 22-21 = 22.0 ft (elevation difference) D 1.20 in (pipe diameter) KL, entrance = 0.50 (pipe entrance) KL, valve 12.0 (valve 1) KL, valve 2 6.8 (valve 2) KL, elbow = 0.34 (each elbow-there are 3) 1.05 (pipe exit) KL. exit L=124 ft (total pipe length) e = 0.0011 in (pipe roughness) V₁0 Reservoir 2₂-21 Ho5 Valve 1 Pump V₂20 Reservoir Valve 2

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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3. 14-35E A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expression Havailable = Ho - a V², where the shutoff head, Ho = 125 ft of water column, coefficient a = 2.50 ft/(gpm)², available pump head Havailable is in units of feet of water column, and the capacity V is in units of gallons per minute (gpm). Estimate the capacity delivered by the pump. Answer: 6.34 gpm 22-2₁ = 22.0 ft (elevation difference) D 1.20 in (pipe diameter) KL. entrance KL, valve 1 KL, valve 2 = 6.8 (valve 2) KL. elbow = 0.34 (each elbow-there are 3) = 0.50 (pipe entrance) 2.0 (valve 1) KL, exit = = 1.05 (pipe exit) L = 124 ft (total pipe length) e = 0.0011 in (pipe roughness) P v₁ Reservoir V₁0 22-71 55 Valve 1 Pump V/₂20 Reservoir Valve 2
Transcribed Image Text:3. 14-35E A water pump is used to pump water from one large reservoir to another large reservoir that is at a higher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The dimensions and minor loss coefficients are provided in the figure. The pump's performance is approximated by the expression Havailable = Ho - a V², where the shutoff head, Ho = 125 ft of water column, coefficient a = 2.50 ft/(gpm)², available pump head Havailable is in units of feet of water column, and the capacity V is in units of gallons per minute (gpm). Estimate the capacity delivered by the pump. Answer: 6.34 gpm 22-2₁ = 22.0 ft (elevation difference) D 1.20 in (pipe diameter) KL. entrance KL, valve 1 KL, valve 2 = 6.8 (valve 2) KL. elbow = 0.34 (each elbow-there are 3) = 0.50 (pipe entrance) 2.0 (valve 1) KL, exit = = 1.05 (pipe exit) L = 124 ft (total pipe length) e = 0.0011 in (pipe roughness) P v₁ Reservoir V₁0 22-71 55 Valve 1 Pump V/₂20 Reservoir Valve 2
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