2-102 A long homogeneous resistance wire of radius r = 0.6 cm and thermal conductivity k 15.2 W/m-K is being used to boil water at atmospheric pressure by the passage of electric current. Heat isgenerated in the wire uniformly as a result of resistance heating at a rate of 16.4 W/cm3. The heat generated is transferred to water at 100°C by convection with an average heat transfer coefficient of h3200 W/m2-K. Assuming steady one-dimensional heat transfer, (a) express the differential equation and the boundary conditions for heat conduction through the wire, (b) obtain a relation for the variation oftemperature in the wire by solving the differential equation, and (c) determine the temperature at the centerline of the wire. Answer: () 125°CFIGURE P2-102т.WaterResistanceheater

a)Consider system is, Steady and one dimensional in the radial direction, and internal heat…

Answered: 2-102 A long homogeneous resistance…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.12P

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