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Water at 20°C is to be pumped from a reservoir (ZA= 5 m) to another reservoir at a higher elevation (ZB = 13 m) through two 36-m- long pipes connected in parallel as shown. The pipes are made of commercial steel, and the diameter of the two pipes are 4 cm and 8 cm. Water is to be pumped by a 70% efficient motor-pump combination that draws 8 kW of electric power during operation. The minor losses in pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rate through each of the parallel pipes. ZA = 5m Pump L₁ = 36 m D₁ = 4 cm Control volume -boundary D₂ = 8 cm L₂= 36 m B 2g = 13 m

Water at 20°C is to be pumped from a reservoir (ZA= 5 m) to another reservoir at a higher elevation (ZB = 13 m) through two 36-m- long pipes connected in parallel as shown. The pipes are made of commercial steel, and the diameter of the two pipes are 4 cm and 8 cm. Water is to be pumped by a 70% efficient motor-pump combination that draws 8 kW of electric power during operation. The minor losses in pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rate through each of the parallel pipes. ZA = 5m Pump L₁ = 36 m D₁ = 4 cm Control volume -boundary D₂ = 8 cm L₂= 36 m B 2g = 13 m

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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Water at 20°C is to be pumped from a reservoir (ZA = 5 m) to another reservoir at a higher elevation (ZB = 13 m) through two 36-m- long pipes connected in parallel as shown. The pipes are made of commercial steel, and the diameter of the two pipes are 4 cm and 8 cm. Water is to be pumped by a 70% efficient motor-pump combination that draws 8 kW of electric power during operation. The minor losses in pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rate through each of the parallel pipes. ZA = 5 m Pump = 36 m L₁ D₁ = 4 cm Control volume -boundary D₂ = 8 cm L₂ = 36 m B ZB = 13 m
Transcribed Image Text:Water at 20°C is to be pumped from a reservoir (ZA = 5 m) to another reservoir at a higher elevation (ZB = 13 m) through two 36-m- long pipes connected in parallel as shown. The pipes are made of commercial steel, and the diameter of the two pipes are 4 cm and 8 cm. Water is to be pumped by a 70% efficient motor-pump combination that draws 8 kW of electric power during operation. The minor losses in pipes that connect the parallel pipes to the two reservoirs are considered to be negligible. Determine the total flow rate between the reservoirs and the flow rate through each of the parallel pipes. ZA = 5 m Pump = 36 m L₁ D₁ = 4 cm Control volume -boundary D₂ = 8 cm L₂ = 36 m B ZB = 13 m
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