A rod is made of two different layers: chromium and copper; as shown in the diagram below. Both layers have the same length ( L=0.46 m) and the same area (A =0.13 cm?). In the considered system, chromium is joined to the left hand which is at Te =74.8 C, whereas copper is in physical contact with the right end at Toh =7°C. The thermal conductivity constants of the materials are given as k, = 93.7 W/(m-K) and k, = 401 W/(m K). ASsuming steady state is eventually achieved, answer the following questions. %3D right a) Evaluate the junction temperature between the two layers. Tunction = b) Calculate the rate of heat flow (power) through conduction in SI units. P= J/s Twrt Layer 1 Layer 2 Trght Check

A rod is made of two different layers: chromium and copper; as shown in the diagram below. Both layers have the same length ( L=0.46 m) and the same area (A =0.13 cm?). In the considered system, chromium is joined to the left hand which is at Te =74.8 C, whereas copper is in physical contact with the right end at Toh =7°C. The thermal conductivity constants of the materials are given as k, = 93.7 W/(m-K) and k, = 401 W/(m K). ASsuming steady state is eventually achieved, answer the following questions. %3D right a) Evaluate the junction temperature between the two layers. Tunction = b) Calculate the rate of heat flow (power) through conduction in SI units. P= J/s Twrt Layer 1 Layer 2 Trght Check

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 58PQ

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