A radiative heater consists of a bank of ceramic tubeswith
Chapter 13, Problem 13.74(choose chapter or problem)
A radiative heater consists of a bank of ceramic tubeswith internal heating elements. The tubes are of diam-eter D?20 mm and are separated by a distances?50 mm. A reradiating surface is positioned behindthe heating tubes as shown in the schematic. Deter-mine the net radiative heat flux to the heated materialwhen the heating tubes (?h?0.87) are maintained at1000 K. The heated material (?m?0.26) is at a tem-perature of 500 K.
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