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A refrigeration system is to cool bread loaves with an average mass of 390 g from 30°C to -10°C at a rate of 1200 loaves per hour with refrigerated air at -30°C. Take the average specific and latent heats of bread to be 2.93 kJ/kg-°C and 109.3 kJ/kg. Determine the required volume flow rate of air, in m³/h, if the temperature rise of air is not to exceed 8°C. (You must provide an answer before moving to the next part.) The required volume flow rate of air is m³/h.

A refrigeration system is to cool bread loaves with an average mass of 390 g from 30°C to -10°C at a rate of 1200 loaves per hour with refrigerated air at -30°C. Take the average specific and latent heats of bread to be 2.93 kJ/kg-°C and 109.3 kJ/kg. Determine the required volume flow rate of air, in m³/h, if the temperature rise of air is not to exceed 8°C. (You must provide an answer before moving to the next part.) The required volume flow rate of air is m³/h.

Elements Of Electromagnetics
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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A refrigeration system is to cool bread loaves with an average mass of 390 g from 30°C to -10°C at a rate of 1200 loaves per hour with refrigerated air at -30°C. Take the average specific and latent heats of bread to be 2.93 kJ/kg°C and 109.3 kJ/kg. Determine the required volume flow rate of air, in m³/h, if the temperature rise of air is not to exceed 8°C. (You must provide an answer before moving to the next part.) The required volume flow rate of air is ________ m³/h.
Transcribed Image Text:A refrigeration system is to cool bread loaves with an average mass of 390 g from 30°C to -10°C at a rate of 1200 loaves per hour with refrigerated air at -30°C. Take the average specific and latent heats of bread to be 2.93 kJ/kg°C and 109.3 kJ/kg. Determine the required volume flow rate of air, in m³/h, if the temperature rise of air is not to exceed 8°C. (You must provide an answer before moving to the next part.) The required volume flow rate of air is ________ m³/h.
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