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# A supply of geothermal hot water is to be used as the energy

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Rankine Cycle Problem. See attached file for full problem description.

A supply of geothermal hot water is to be used as the energy source in an ideal Rankine cycle, with R-134a as the cycle working fluid. (See the diagrams below) Saturated vapor R-134a leaves the boiler at a temperature of 85°C, and the condenser temperature is 40°C. Calculate the heat transfers in kJ/kg at the boiler and condenser.
Calculate the work in kJ/kg at the pump and turbine thermal efficiency of this cycle

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#### Solution Preview

Please see the attached file.

proA supply of geothermal hot water is to be used as the energy source in an ideal Rankine cycle, with R-134a as the cycle working fluid. (See the diagrams below) Saturated vapor R-134a leaves the boiler at a temperature of 85°C, and the condenser temperature is 40°C.

Please fill in this table
State P (kPa) T (°C) v (m3/kg) x h (kJ/kg) s (kJ/kg-K)
1 40 0.00
2
3 85 1.00
4 40

(1) Calculate the heat transfers in kJ/kg at the boiler and condenser.
(2) Calculate the work in kJ/kg at the pump and turbine
(3) Calculate the ...

#### Solution Summary

The solution provides detailed explanations and calculations, including diagrams for the problem.

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