A 65 kg beef carcass (k-0.47 w/mK and a-0.13 x10-6 m/s) initially at a uniform temperature of 37 C is to be cooled by refrigerated air at -10 oC flowing at a velocity of 1.2 ms. The average heat transfer coefficiens between the carcass and the air is 22 W/mK. Treating the carcass as a cylinder of diameter 24 cm and the height 1.4 m and disregarding heat transfer from the base and top surfaces, a Determine how long it will take for the centre temperature of the carcass to drop to 4 °C b. Also, determine if any part of the carcass will freeze during this process
A 65 kg beef carcass (k-0.47 w/mK and a-0.13 x10-6 m/s) initially at a uniform temperature of 37 C is to be cooled by refrigerated air at -10 oC flowing at a velocity of 1.2 ms. The average heat transfer coefficiens between the carcass and the air is 22 W/mK. Treating the carcass as a cylinder of diameter 24 cm and the height 1.4 m and disregarding heat transfer from the base and top surfaces, a Determine how long it will take for the centre temperature of the carcass to drop to 4 °C b. Also, determine if any part of the carcass will freeze during this process
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:A 65 kg beef carcass (k-0.47 w/mk and a-0.13 x10-6 m/s) initially at a uniform temperature of 37 "C is to be cooled by refrigerated
air at -10 oC flowing at a velocity of 1.2 ms. The average heat transfer coefficient between the carcass and the air is 22 W/m²K. Treating the
carcass as a cylinder of diameter 24 cm and the height 1.4 m and disregarding heat transfer from the base and top surfaces,
Determine how long it will take for the centre temperature of the carcass to drop to 4 °C
b. Also, determine if any part of the carcass will freeze during this process
Hava- air
-10 °C
12m/s
Sider E
Beef
JTC
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