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Counterflow concentric tube heat exchanger. FIND: (a) Total heat transfer rate and outlet temperature of the water and (b) Required length. SCHEMATIC: Thi=100°-m,-0.1kg/s Oil,h TA Tho-60° me=0.1kg/s Water, c Concentric tube: U-60W/m2.K D=25 mm

Counterflow concentric tube heat exchanger. FIND: (a) Total heat transfer rate and outlet temperature of the water and (b) Required length. SCHEMATIC: Thi=100°-m,-0.1kg/s Oil,h TA Tho-60° me=0.1kg/s Water, c Concentric tube: U-60W/m2.K D=25 mm

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
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Counterflow concentric tube heat exchanger. FIND: (a) Total heat transfer rate and outlet temperature of the water and (b) Required length. SCHEMATIC: Thi=100°-m,-0.1kg/s Oil,h TA Tho-60° me=0.1kg/s Water, c Concentric tube: U-60W/m2.K D=25 mm
böö öel jäll - 4_5891167771022068305 ビン 3- KNOWN: Counterflow concentric tube heat exchanger. FIND: (a) Total heat transfer rate and outlet temperature of the water and (b) Required length. SCHEMATIC: Tai=100°C m,-Q.1kg/s Oil,h TA Tho-60t Dime=0.1kg/s Water, c Concentric tube: U-60W/m2.K D=25 mm PROPERTIES: (given): P (kg/m) p (J/kg-K) Water 1000 4200 Oil 800 1900 4- A centrifugal pump was tested for cavitation initiation. Total head was 40 m and flow rate were 0.06 m/s. Cavitation started when the total head at the suction side was 3 m. The atmospheric pressure was 760 mm Hg and the vapor pressure at this temperature was 2 kPa. It was proposed to install the pump where the atmospheric pressure is 700 mm Hg and the vapor pressure at the location temperature is 1 kPa. If the pump develops the same total head and flow, can the pump be fixed as the same height as the lab setup? What should be the new height. ۲ من ۳ II
Transcribed Image Text:böö öel jäll - 4_5891167771022068305 ビン 3- KNOWN: Counterflow concentric tube heat exchanger. FIND: (a) Total heat transfer rate and outlet temperature of the water and (b) Required length. SCHEMATIC: Tai=100°C m,-Q.1kg/s Oil,h TA Tho-60t Dime=0.1kg/s Water, c Concentric tube: U-60W/m2.K D=25 mm PROPERTIES: (given): P (kg/m) p (J/kg-K) Water 1000 4200 Oil 800 1900 4- A centrifugal pump was tested for cavitation initiation. Total head was 40 m and flow rate were 0.06 m/s. Cavitation started when the total head at the suction side was 3 m. The atmospheric pressure was 760 mm Hg and the vapor pressure at this temperature was 2 kPa. It was proposed to install the pump where the atmospheric pressure is 700 mm Hg and the vapor pressure at the location temperature is 1 kPa. If the pump develops the same total head and flow, can the pump be fixed as the same height as the lab setup? What should be the new height. ۲ من ۳ II
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