There is a flow of 238 kg/h of water that will enter a heat exchanger at 37 °C to be used as a cooling medium for an oil (Cp=2.1 kJ/kg °C) that will vary its temperature from 120 at 60°C. On the water side convection develops with (h=1250 J/s.m^2.°C), while on the oil side convection occurs with (84 J/s.m^2 °C). The area in the water side is 0.8 m^2, while on the oil side it is 1.1 m^2. The fluids are separated by a 4 mm thick steel barrier (k=45 W/m.°C). Estimate the flow of oil that can be cooled if the water temperature cannot be higher than 92°C.
There is a flow of 238 kg/h of water that will enter a heat exchanger at 37 °C to be used as a cooling medium for an oil (Cp=2.1 kJ/kg °C) that will vary its temperature from 120 at 60°C. On the water side convection develops with (h=1250 J/s.m^2.°C), while on the oil side convection occurs with (84 J/s.m^2 °C). The area in the water side is 0.8 m^2, while on the oil side it is 1.1 m^2. The fluids are separated by a 4 mm thick steel barrier (k=45 W/m.°C). Estimate the flow of oil that can be cooled if the water temperature cannot be higher than 92°C.
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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There is a flow of 238 kg/h of water that will enter a heat exchanger at 37 °C to be used as a cooling medium for an oil (Cp=2.1 kJ/kg °C) that will vary its temperature from 120 at 60°C. On the water side convection develops with (h=1250 J/s.m^2.°C), while on the oil side convection occurs with (84 J/s.m^2 °C). The area in the water side is 0.8 m^2, while on the oil side it is 1.1 m^2. The fluids are separated by a 4 mm thick steel barrier (k=45 W/m.°C). Estimate the flow of oil that can be cooled if the water temperature cannot be higher than 92°C.
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