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Two centrifugal pumps, a 5-in delivering 129gpm and a 4.5 in delivering 140gpm are connected in parallel. If the pump characteristics of both are represented by Fig. 10-38 Perry 8th Edition, determine the overall efficiency of the pump set.

Two centrifugal pumps, a 5-in delivering 129gpm and a 4.5 in delivering 140gpm are connected in parallel. If the pump characteristics of both are represented by Fig. 10-38 Perry 8th Edition, determine the overall efficiency of the pump set.

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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Two centrifugal pumps, a 5-in delivering 129gpm and a 4.5 in delivering 140gpm are connected in parallel. If the pump characteristics of both are represented by Fig. 10-38 Perry 8th Edition, determine the overall efficiency of the pump set.

10-34 TRANSPORT AND STORAGE OF FLUIDS 140 Characieristic curve 120 Efficiency -lines 74% 77% 79% 80% 100 5 inch impeller 179% 80 4inch impellerk |74% 60 5hp 40 20 3hp 40 80 200 120 Gallons Per Minute 160 240 280 320 FIG. 10-38 Characteristic curve of a centrifugal pump operating at a constant speed of 3450 r/min. To convert gallons per minute to cubic meters per hour, multiply by 0.2271; to convert feet to meters, multiply by 0.3048; to convert horsepower to kilowatts, multiply by 0.746; and to convert inches to centime- ters, multiply by 2.54. Total Head - Ft. of Liquid
Transcribed Image Text:10-34 TRANSPORT AND STORAGE OF FLUIDS 140 Characieristic curve 120 Efficiency -lines 74% 77% 79% 80% 100 5 inch impeller 179% 80 4inch impellerk |74% 60 5hp 40 20 3hp 40 80 200 120 Gallons Per Minute 160 240 280 320 FIG. 10-38 Characteristic curve of a centrifugal pump operating at a constant speed of 3450 r/min. To convert gallons per minute to cubic meters per hour, multiply by 0.2271; to convert feet to meters, multiply by 0.3048; to convert horsepower to kilowatts, multiply by 0.746; and to convert inches to centime- ters, multiply by 2.54. Total Head - Ft. of Liquid
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