A thin electrical heater is wrapped around the outer surface of a long cylindrical tube whose inner
Question:
A thin electrical heater is wrapped around the outer surface of a long cylindrical tube whose inner surface is maintained at a temperature of 5°C. The tube wall has inner and outer radii of 25 and 75 mm, respectively, and a thermal conductivity of 10 W/m. K. The thermal contact resistance between the heater and the outer surface of the tube (per unit length of the tube) is Rt,c = 0.01 m ∙ K/W. The outer surface of the heater is exposed to a fluid with T∞ = - 10°C and a convection coefficient of h = 100 W/m2 ∙ K. Determine the heater power per unit length of tube required to maintain the heater at To = 25°C.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
Question Posted: