. A 6-m-long 2-kW electrical resistance wire is made of 0.2-cm-diameter stainless steel (k = 15.1 W/m °C). The re- sistance wire operates in an environment at 30°C with a heat transfer coefficient of 140 W/m². °C at the outer surface. De- termine the surface temperature of the wire (a) by using the ap- plicable relation and (b) by setting up the proper differential equation and solving it. Answers: (a) 409°C, (b) 409°C
. A 6-m-long 2-kW electrical resistance wire is made of 0.2-cm-diameter stainless steel (k = 15.1 W/m °C). The re- sistance wire operates in an environment at 30°C with a heat transfer coefficient of 140 W/m². °C at the outer surface. De- termine the surface temperature of the wire (a) by using the ap- plicable relation and (b) by setting up the proper differential equation and solving it. Answers: (a) 409°C, (b) 409°C
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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.60P: 1.60 Two electric resistance heaters with a 20 cm length and a 2 cm diameter are inserted into a...
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