Answered: The distance term for a flat plate…

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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Question

The distance term for a flat plate composite wall is del X. Is the distance term for a cylindrical pipe del r? ANS:______

Expert Solution

Step 1

A flat composite wall is assumed to have three layers and each layer is made of the different material with heat conductivities k_A, k_Band k_C, respectively. The thickness of each layer is Δ_A, Δ_B and Δ_C, respectively. The area of cross-section is denoted by A and the temperatures at the outer surface of 1^st and 3^rd wall is T₁and T₂, respectively. The equation of the heat transfer for the flat composite wall is:

Step 2

The distance term in the flat plate composite wall is denoted by Δx.

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