t is required to freeze 1.50 metric tons of fresh lean beef from 4.00C to −21.0C within 24.0 h prior to storage. Estimate the average rate of heat extraction (in kW) for the process based on the enthalpy change. The enthalpies of fresh beef at 4.00C and −21.0C are 318.66 and 41.87 kJ/kg, respectively.
t is required to freeze 1.50 metric tons of fresh lean beef from 4.00C to −21.0C within 24.0 h prior to storage. Estimate the average rate of heat extraction (in kW) for the process based on the enthalpy change. The enthalpies of fresh beef at 4.00C and −21.0C are 318.66 and 41.87 kJ/kg, respectively.
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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Question
t is required to freeze 1.50 metric tons of fresh lean beef from 4.00C to −21.0C
within 24.0 h prior to storage. Estimate the average rate of heat extraction (in kW)
for the process based on the enthalpy change. The enthalpies of fresh beef at 4.00C
and −21.0C are 318.66 and 41.87 kJ/kg, respectively. [Ans. 4.81 kW]
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