A 2-kW resistance heater wire with thermal conductivity k = 15 W/m - °C, di- ameter D = 0.4 cm, and length L = 50 cm is used to boil water by immersing Water it in water (Fig. 2-19). Assuming the variation of the thermal conductivity of the wire with temperature to be negligible, obtain the differential equation that de- scribes the variation of the temperature in the wire during steady operation. Resistance heater

A 2-kW resistance heater wire with thermal conductivity k = 15 W/m - °C, di- ameter D = 0.4 cm, and length L = 50 cm is used to boil water by immersing Water it in water (Fig. 2-19). Assuming the variation of the thermal conductivity of the wire with temperature to be negligible, obtain the differential equation that de- scribes the variation of the temperature in the wire during steady operation. Resistance heater

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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