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5. A small furnace consists of a cylindrical, black-walled enclosure except for the top surface, 20 cm long and with a d
Posted: Mon May 02, 2022 3:13 pm
by answerhappygod
- 5 A Small Furnace Consists Of A Cylindrical Black Walled Enclosure Except For The Top Surface 20 Cm Long And With A D 1 (20.11 KiB) Viewed 48 times
5. A small furnace consists of a cylindrical, black-walled enclosure except for the top surface, 20 cm long and with a diameter of 10 cm. The bottom surface is electrically heated to 1500 K, while the cylindrical sidewall is insulated. The top plate coated with a gray, diffuse material with emittance £;= 0.5 is exposed to the environment, such that its temperature is 500 K. Estimate the heating requirements for the bottom wall, and the temperature of the cylindrical sidewall, by treating the sidewall as a single zone. (2) T; - 500K کس 0= 92 T, = 1500K