D2 A 3-m intemal diameter sphèrical tank made of 2-cm-thick staaless steel (k-15 W/m 0°C. The tank is located in a room whose C) is used to store iced water at Te emperature is T - 22°C. The walls of the room are also at 22°C. The outer surface of he tank is black and heat transfer between the outer surface of the tank and the urroundings is by natural convection and radiation. The convection heat transfer oefficients at the inner and the outer surfaces of the tank are h 80 W/m2 C and h O W/m2 C, respectively. Determine (a) the rate of heat transfer to the iced water in the ank and (b) the amount of ice at 0°C that melts during a 24-h period.
D2 A 3-m intemal diameter sphèrical tank made of 2-cm-thick staaless steel (k-15 W/m 0°C. The tank is located in a room whose C) is used to store iced water at Te emperature is T - 22°C. The walls of the room are also at 22°C. The outer surface of he tank is black and heat transfer between the outer surface of the tank and the urroundings is by natural convection and radiation. The convection heat transfer oefficients at the inner and the outer surfaces of the tank are h 80 W/m2 C and h O W/m2 C, respectively. Determine (a) the rate of heat transfer to the iced water in the ank and (b) the amount of ice at 0°C that melts during a 24-h period.
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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Transcribed Image Text:Q2/ A 3-m internal diameter spherical tank made of 2-cm-thick stataless steel (k= 15 W/m
0°C. The tank is located in a room whose
%3D
C) is used to store iced water at Te
temperature is T-22°C. The walls of the room are also at 22°C. The outer surface of
the tank is black and heat transfer between the outer surface of the tank and the
surroundings is by natural convection and radiation. The convection heat transfer
coefficients at the inner and the outer surfaces of the tank are h-80 W/m2 C and h
10 W/m2 C, respectively. Determine (a) the rate of heat transfer to the iced water in the
tank and (b) the amount of ice at 0°C that melts during a 24-h period.
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