Heat Loss with a Trial-and-Error Solution. The exhaust duct from a heater has aninside diameter of 114.3 mm with ceramic walls 6.4 mm thick. The averagek 1.52 W/m K. Outside this wall,installed. The thermal conductivity of the rock wool is k = 0.046 + 1.56 x 10 T°C(W/m K). The inside surface temperature of the ceramic is Ti 588.7 K, and theoutside surface temperature of the insulation is T 311 K. Calculate the heat lossfor 1.5 m of duct and the interface temperature T2 between the ceramic and the insu-lation. [Hint: The correct value of km for the insulation is that evaluated at the meantemperature of (T2+ T3)/2. Hence, for the first trial assume a mean temperature of,say, 448 K. Then, calculate the heat loss and T2. Using this new T2, calculate a newmean temperature and proceed as before.]an insulation of rock wool 102 mm thick isdsMIsenitysMWTOBTHMAAhOSSUTDclveT alJolyslsbihesnigne lsaibemolaSOC199T01ad di199nigne loime. dheGA9120x

From the mean temperature calculate the thermal conductivity of the rock wool insulation.

Answered: Heat Loss with a Trial-and-Error…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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