a)
The rate of heat removal from the chicken.
a)

Explanation of Solution
Given:
The average mass of the chicken
The number of chickens dropped into the chiller
The initial temperature of the chicken
The final temperature of the chicken
The specific heat of chicken
Calculation:
Refer TableA-3, “Properties of common liquids, solids, and foods”, select the specific heat at constant pressure
Calculate the mass flow of the chicken.
Write the expression for the energy balance equation for closed system.
Here, rate of net energy transfer in to the control volume is
For the steady flow system, rate of change in internal energy of the system is zero.
Substitute
Here, mass flow rate is
Refer Equation (II),
Calculate the rate of heat removal from the chicken.
Thus, the rate of heat removal from the chicken is
b)
The rate of entropy generation during the process.
b)

Explanation of Solution
Calculate the total rate of heat gained by the water
Calculate mass flow rate of water
Write the expression for the entropy balance in the heat exchanger.
Here, rate of net input entropy is
Substitute
Thus, the rate of entropy generation during the process is
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Chapter 8 Solutions
Fundamentals Of Thermal-fluid Sciences In Si Units
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