A vessel for producing steam contains water at 100°C and is mounted on insulated walls above a heater as shown in the figure. The diameters of the vessel and the heater are both 1.0 m and the heater is at 1200°C. The heater has an emissivity of 0.7 and the surface of the vessel has an emissivity of 0.5. Calculate: (a) the rate of radiative heat transfer to the water; (b) the temperature of the insulated walls (Ans = 63.6 kW; 1296 K) 1.5 m 1m Door Heater Insulated Wall

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A vessel for producing steam contains water at 100°C and is mounted on
insulated walls above a heater as shown in the figure. The diameters of the
vessel and the heater are both 1.0 m and the heater is at 1200°C. The heater
has an emissivity of 0.7 and the surface of the vessel has an emissivity of 0.5.
Calculate:
(a) the rate of radiative heat transfer to the water;
(b) the temperature of the insulated walls
(Ans = 63.6 kW; 1296 K)
1.5 m
1 m
Door
Heater
Insulated
Wall
Transcribed Image Text:A vessel for producing steam contains water at 100°C and is mounted on insulated walls above a heater as shown in the figure. The diameters of the vessel and the heater are both 1.0 m and the heater is at 1200°C. The heater has an emissivity of 0.7 and the surface of the vessel has an emissivity of 0.5. Calculate: (a) the rate of radiative heat transfer to the water; (b) the temperature of the insulated walls (Ans = 63.6 kW; 1296 K) 1.5 m 1 m Door Heater Insulated Wall
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