Q2/ A 3-m internal diameter spherical tank made of 2-cm-thick stataless steel (k= 15 W/m0°C. The tank is located in a room whose%3DC) is used to store iced water at Tetemperature is T-22°C. The walls of the room are also at 22°C. The outer surface ofthe tank is black and heat transfer between the outer surface of the tank and thesurroundings is by natural convection and radiation. The convection heat transfercoefficients at the inner and the outer surfaces of the tank are h-80 W/m2 C and h10 W/m2 C, respectively. Determine (a) the rate of heat transfer to the iced water in thetank and (b) the amount of ice at 0°C that melts during a 24-h period.

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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.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.12P

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