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It is desired to cool an organic liquid from 65oC to 40oC using water as cooling medium. The organic liquid shall enter 5m/s and at the average temperature its properties are: density = 810 kg/m3, viscosity = 1 cp, specific heat = 2.1 KJ/kg-K and thermal conductivity = 0.14 W/m-K. The cooling water shall enter at 28oC and leave at 35oC. Suppose a double pipe heat exchanger composed of 1 inch and 2 inch sch 40 Steel pipes are used. Determine the length of the exchanger needed (m) for (a) counter-current flow (b) co-current flow.

It is desired to cool an organic liquid from 65oC to 40oC using water as cooling medium. The organic liquid shall enter 5m/s and at the average temperature its properties are: density = 810 kg/m3, viscosity = 1 cp, specific heat = 2.1 KJ/kg-K and thermal conductivity = 0.14 W/m-K. The cooling water shall enter at 28oC and leave at 35oC. Suppose a double pipe heat exchanger composed of 1 inch and 2 inch sch 40 Steel pipes are used. Determine the length of the exchanger needed (m) for (a) counter-current flow (b) co-current flow.

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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It is desired to cool an organic liquid from 65oC to 40oC using water as cooling medium. The organic liquid shall enter 5m/s and at the average temperature its properties are: density = 810 kg/m3, viscosity = 1 cp, specific heat = 2.1 KJ/kg-K and thermal conductivity = 0.14 W/m-K. The cooling water shall enter at 28oC and leave at 35oC. Suppose a double pipe heat exchanger composed of 1 inch and 2 inch sch 40 Steel pipes are used. Determine the length of the exchanger needed (m) for (a) counter-current flow (b) co-current flow.

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