Lecture 24 Examples - temperature of the refrigerant in the...

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Calculate the change in enthalpy and the change in entropy as 1 kg of refrigerant R-134a is compressed from 100 kPa and 0 °C to 1000 kPa and 112.3 °C.
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Consider a heat pump that uses R-134a as the working fluid. It has a COP H of 4 with 10 kW power input. The cold side is buried underground where it is 8 °C and the hot side is a house kept at 21 °C. The high
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Unformatted text preview: temperature of the refrigerant in the cycle is 50 °C through a condenser and its low temperature is -10 °C through the evaporator. Calculate the entropy generated....
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