Given the furnace wall and other conditions as specified in Problem 15.25, what thickness of celotex (k
Question:
Given the furnace wall and other conditions as specified in Problem 15.25, what thickness of celotex (k = 0.065W/m · K) must be added to the furnace wall in order that the outside surface temperature of the insulation not exceed 340 K?
Data From Problem 15.25
Determine the heat-transfer rate per square meter of wall area for the case of a furnace with inside air at 1340 K. The furnace wall is composed of a 0.106-m layer of fireclay brick and a 0.635-cm thickness of mild steel on its outside surface. Heat transfer coefficients on inside and outside wall surfaces are 5110 and 45 W/m2 · K, respectively; outside air is at 295 K. What will be the temperatures at each surface and at the brick-steel interface?
Step by Step Answer:
Fundamentals Of Momentum Heat And Mass Transfer
ISBN: 9781118947463
6th Edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster