Design a refrigeration system using water as the refrigerant. The temperature of

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Design a refrigeration system using water as the refrigerant. The temperature of the refrigerated space is to be held at 15oC by removing 1 kW of heat. The temperature of the high temperature reservoir to which the heat will be rejected is 120oC. As a “rule of thumb”, assume that there should be a temperature difference of 10oC for good heat transfer for both the condenser and the evaporator. The mass flow rate of the refrigerant. Determine:
a) The optimum pressures at which the condenser and evaporator should operate.
b) The power input to the compressor.
c) The rate of heat rejection to the environment.
d) The coefficient of performance.
e) The coefficient of performance for a Carnot heat pump operating at the same conditions.

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