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Oranges are very susceptible to cold weather, and long exposure to subfreezing temperatures can destroy them....

Oranges are very susceptible to cold weather, and long exposure to subfreezing temperatures can destroy them. Consider an 8 cm diameter orange (assume it is an idealised sphere) that is initially at 15oC. A cold front moves in one night, and the ambient temperature suddenly drops to -8.5oC, with a heat transfer coefficient of 7 W m-2 K−1 . Using the properties of water for the orange and assuming the ambient conditions to remain constant for 2.5 hours before the cold front moves out, determine temperatures at: ro = 0.0 cm (i.e., centre of the orange); ro = 1.0 cm; ro = 2.0 cm; ro = 3.0 cm; ro = 4.0 cm

Solutions

Expert Solution

using given data and heisler charts we can find the required variables

for any doubts write in comments


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