4.) A 3-m-internal-diameter spherical tank made of 1-cm-thick stainless steel steel is used to store iced water at 0°C. The tank is located outdoors at 25°C. Assuming the entire steel tank to be at 0°C and thus the thermal resistance of the tank to be negligible, determine: (a) the rate of heat transfer to iced water in the tank , and (b) the amount of ice at 0°C that melts during a 24-hour period. The heat of fusion of water at atmospheric pressure is hi= 333.7 kJ/kg. The emissivity of the outer surface of the tank is 0.6 and the convection heat transfer coefficient on the outer surface can be taken to be 30 W/m2-°C. Assume the average surrounding surface temperature for radiation exchange to be 15°C.

4.) A 3-m-internal-diameter spherical tank made of 1-cm-thick stainless steel steel is used to store iced water at 0°C. The tank is located outdoors at 25°C. Assuming the entire steel tank to be at 0°C and thus the thermal resistance of the tank to be negligible, determine: (a) the rate of heat transfer to iced water in the tank , and (b) the amount of ice at 0°C that melts during a 24-hour period. The heat of fusion of water at atmospheric pressure is hi= 333.7 kJ/kg. The emissivity of the outer surface of the tank is 0.6 and the convection heat transfer coefficient on the outer surface can be taken to be 30 W/m2-°C. Assume the average surrounding surface temperature for radiation exchange to be 15°C.

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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