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1-A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di = 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do = 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30 C, respectively. The exit temperature of hot fluid and cold fluid is 60 and 40 C. calculate the LMTD. Calculate the surface area of the heat exchanger. How long must the tube? Properties: unused engine oil: cp = 2131 J/kg K, μ=3.25 ×10^-2 N.s/m^2, k = 0.138 W/m.K, 4178 J/kg .K, u= 725×10^-6 N.s/m2, k = 0.625 W/m.K, Pr = 4.85 water: cp neer in which steam is condens

1-A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di = 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do = 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30 C, respectively. The exit temperature of hot fluid and cold fluid is 60 and 40 C. calculate the LMTD. Calculate the surface area of the heat exchanger. How long must the tube? Properties: unused engine oil: cp = 2131 J/kg K, μ=3.25 ×10^-2 N.s/m^2, k = 0.138 W/m.K, 4178 J/kg .K, u= 725×10^-6 N.s/m2, k = 0.625 W/m.K, Pr = 4.85 water: cp neer in which steam is condens

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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1-A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di = 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do = 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30 C, respectively. The exit temperature of hot fluid and cold fluid is 60 and 40 C. calculate the LMTD. Calculate the surface area of the heat exchanger. How long must the tube? Properties: unused engine oil: cp = 2131 J/kg K, μ=3.25 ×10^-2 N.s/m^2, k = 0.138 W/m.K, 4178 J/kg .K, u= 725×10^-6 N.s/m2, k = 0.625 W/m.K, Pr = 4.85 water: cp neer in which steam is condens
Transcribed Image Text:1-A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di = 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do = 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30 C, respectively. The exit temperature of hot fluid and cold fluid is 60 and 40 C. calculate the LMTD. Calculate the surface area of the heat exchanger. How long must the tube? Properties: unused engine oil: cp = 2131 J/kg K, μ=3.25 ×10^-2 N.s/m^2, k = 0.138 W/m.K, 4178 J/kg .K, u= 725×10^-6 N.s/m2, k = 0.625 W/m.K, Pr = 4.85 water: cp neer in which steam is condens
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