(3) A thick silver wire resistance heater measures 2 m in length with a diameter of 2.5 cm. The power output of the wire is 400 watts. If the maximum temperature in the wire is 800 K, what is the temperature of the wire at r = cm? 2 L=2m 0.75 • Q = Egen = 400 W wire d = 2.5cm = 0.025m R = 0.0125m Tmax=800k = T (r = 0) T(r = 0.0075m) = ? R

(3) A thick silver wire resistance heater measures 2 m in length with a diameter of 2.5 cm. The power output of the wire is 400 watts. If the maximum temperature in the wire is 800 K, what is the temperature of the wire at r = cm? 2 L=2m 0.75 • Q = Egen = 400 W wire d = 2.5cm = 0.025m R = 0.0125m Tmax=800k = T (r = 0) T(r = 0.0075m) = ? R

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.30P: 2.30 An electrical heater capable of generating 10,000 W is to be designed. The heating element is...

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