1.0 A mass of ice at -7 °C is needed to cool 224 kg of vegetables (Cp = 3.35 KJ kg.K )ir a bunker for 24 hours . The initial temperature of the vegetables is assumed to be 29 °C . It is also assumed that the average temperature in the bunker is 7°C within the 24 hour period . If the heat gained per hour in the bunker is 25% of the heat removed to the vegetables from 29 °C to 7°C, what would be the required mass of ice ?

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.
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1.0 A mass of ice at -7 °C is needed to cool 224 kg of vegetables (Cp = 3.35 KJ /kg.K )in
a bunker for 24 hours . The initial temperature of the vegetables is assumed to be 29
°C . It is also assumed that the average temperature in the bunker is 7°C within the 24 -
hour period . If the heat gained per hour in the bunker is 25% of the heat removed to the
vegetables from 29 °C to 7°C, what would be the required mass of ice ?
Transcribed Image Text:1.0 A mass of ice at -7 °C is needed to cool 224 kg of vegetables (Cp = 3.35 KJ /kg.K )in a bunker for 24 hours . The initial temperature of the vegetables is assumed to be 29 °C . It is also assumed that the average temperature in the bunker is 7°C within the 24 - hour period . If the heat gained per hour in the bunker is 25% of the heat removed to the vegetables from 29 °C to 7°C, what would be the required mass of ice ?
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