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The furnace water walls of a steam generator having a capacity of 9 kg/s, consist of 130 half radiant tubes of 30 mm diameter spaced by 75 mm center distance and 15 m long each, and a temperature of 450°C. If the latent heat of vaporization of the water is 2200 kJ/kg and 25% of the steam latent heat is carried by radiation. For the fuel, emissivity=0.9, sigma=5.67x10-8 W/m2.K4. Determine the temperature of the flue gases at the outlet of the furnace. Select one: a. 1414 °C b. 735 K c. 1141 K d. 1141 °C

The furnace water walls of a steam generator having a capacity of 9 kg/s, consist of 130 half radiant tubes of 30 mm diameter spaced by 75 mm center distance and 15 m long each, and a temperature of 450°C. If the latent heat of vaporization of the water is 2200 kJ/kg and 25% of the steam latent heat is carried by radiation. For the fuel, emissivity=0.9, sigma=5.67x10-8 W/m2.K4. Determine the temperature of the flue gases at the outlet of the furnace. Select one: a. 1414 °C b. 735 K c. 1141 K d. 1141 °C

Elements Of Electromagnetics
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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The furnace water walls of a steam generator having a capacity of 9 kg/s, consist of 130 half radiant tubes of 30 mm diameter spaced by 75 mm center distance and 15 m long each, and a temperature of 450°C. If the latent heat of vaporization of the water is 2200 kJ/kg and 25% of the steam latent heat is carried by radiation. For the fuel, emissivity=0.9, sigma=5.67x10-8 W/m2.K4. Determine the temperature of the flue gases at the outlet of the furnace.
Select one:
a. 1414 °C
b. 735 K
c. 1141 K
d. 1141 °C
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