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A plane wall is a composite of two materials, A and B. The wall of material A has uniform heat generation à = 1.5 x 106 W/m³, kA = 75 W/m K, and thickness LA 50 mm. The wall material B has no generation with kB 150 W/m K and thickness LB = 20 mm. The inner surface of material A is well insulated, while the outer surface of material B is cooled by a water stream with T.. 30°C and h = 1000 W/m².K. 1. Sketch the temperature distribution that exists in the composite under steady-state conditions. 2. Determine the temperature To of the insulated surface and the temperature T₂ of the cooled surface. To Insulation A = 1.5 x 106 W/m³. KA = 75 W/m-K LA = 50 mm La = 20 mm T = 30°C h = 1000 W/m².K Water KB 150 W/m-K B = 0

A plane wall is a composite of two materials, A and B. The wall of material A has uniform heat generation à = 1.5 x 106 W/m³, kA = 75 W/m K, and thickness LA 50 mm. The wall material B has no generation with kB 150 W/m K and thickness LB = 20 mm. The inner surface of material A is well insulated, while the outer surface of material B is cooled by a water stream with T.. 30°C and h = 1000 W/m².K. 1. Sketch the temperature distribution that exists in the composite under steady-state conditions. 2. Determine the temperature To of the insulated surface and the temperature T₂ of the cooled surface. To Insulation A = 1.5 x 106 W/m³. KA = 75 W/m-K LA = 50 mm La = 20 mm T = 30°C h = 1000 W/m².K Water KB 150 W/m-K B = 0

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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A plane wall is a composite of two materials, A and B. The wall of material A has uniform heat generation à = 1.5 x 106 W/m³, k 75 W/m K, and thickness LA = 50 mm. The wall material B has no generation with kB 150 W/m K and thickness LB = 20 mm. The inner surface of material A is well insulated, while the outer surface of material B is cooled by a water stream with 7 = 30°C and h = 1000 W/m².K. = 1. Sketch the temperature distribution that exists in the composite under steady-state conditions. 2. Determine the temperature To of the insulated surface and the temperature T₂ of the cooled surface. Insulation A = 1.5 x 106 W/m³. KA = 75 W/m-K LA = 50 mm = LB 20 mm T = 30°C h = 1000 W/m².K Water KB = 150 W/m-K 98 = 0
Transcribed Image Text:A plane wall is a composite of two materials, A and B. The wall of material A has uniform heat generation à = 1.5 x 106 W/m³, k 75 W/m K, and thickness LA = 50 mm. The wall material B has no generation with kB 150 W/m K and thickness LB = 20 mm. The inner surface of material A is well insulated, while the outer surface of material B is cooled by a water stream with 7 = 30°C and h = 1000 W/m².K. = 1. Sketch the temperature distribution that exists in the composite under steady-state conditions. 2. Determine the temperature To of the insulated surface and the temperature T₂ of the cooled surface. Insulation A = 1.5 x 106 W/m³. KA = 75 W/m-K LA = 50 mm = LB 20 mm T = 30°C h = 1000 W/m².K Water KB = 150 W/m-K 98 = 0
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