A wall of a furnace is made of 120 mm silica brick layer (k= 1.7W/m. K) covered with a layer of 240mm magnesite brick layer (k= 1.2W/m. K). The temperatures of the inside surface of silica brick and outside surface of magnesite brick are 725 C and 110 C respectively. Calculate the rate of heat transfer(per unit area) and the interface temperature.

A wall of a furnace is made of 120 mm silica brick layer (k= 1.7W/m. K) covered with a layer of 240mm magnesite brick layer (k= 1.2W/m. K). The temperatures of the inside surface of silica brick and outside surface of magnesite brick are 725 C and 110 C respectively. Calculate the rate of heat transfer(per unit area) and the interface temperature.

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.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.50P

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