The ice industry to produce its raw material considers an ideal vapor compression refrigeration cycle with refrigerant 134a as the working fluid due to its advantages of driving. The operating conditions of the refrigeration cycle require an evaporator pressure of 140 kPa and a condenser pressure of 1,200 kPa. In addition, there is cooling water flowing through jackets (small tubes) surrounding the condenser, and is supplied at a rate of 245 kg/s. This cooling water has a temperature rise of 11.7°C as it flows through the water jacket. To produce ice, potable water is injected into the chiller section of the refrigeration cycle (evaporator). For each kg of ice produced, 324 kJ of energy must be removed from the supplied drinking water. a) Determine the mass flow rate of the refrigerant, in kg/s. b) Determine the mass flow rate of the drinking water supply, in kg/s.
The ice industry to produce its raw material considers an ideal vapor compression refrigeration cycle with refrigerant 134a as the working fluid due to its advantages of
driving.
The operating conditions of the refrigeration cycle require an evaporator pressure of 140 kPa and a condenser pressure of 1,200 kPa. In addition, there is cooling water
flowing through jackets (small tubes) surrounding the condenser, and is supplied at a rate of 245 kg/s.
This cooling water has a temperature rise of 11.7°C as it flows through the water jacket.
To produce ice, potable water is injected into the chiller section of the refrigeration cycle (evaporator). For each kg of ice produced, 324 kJ of energy must be removed from the supplied drinking water.
a) Determine the mass flow rate of the refrigerant, in kg/s.
b) Determine the mass flow rate of the drinking water supply, in kg/s.
c) Make the T vr S Diagram, include all the results.
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