The design parameters consisted of a hybrid cycle OTEC system located 39 km off the shores...

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The design parameters consisted of a hybrid cycle OTEC system located 39 km off the shores of Jamaica, with ammonia selected as the working fluid. The surface temperature of the water was 25C, and the deep-water temperature at 1000 m was 6C. The mass flow rate was 236.59 kg/s, and the pipe diameter was 1.91m. Also, data for NH3 are given below: State Temperature Pressure Enthalpy Entropy K 1 279 0.53168 kJ/kg 370.32 2 281.12 2.6056 3 370 2.6056 4 380.52 1761.12 283 0.61186 1507.6 kJ/kg-K 1.5694 630.48 1.5972 628.81 5.7881 16.597 5.7881 16.597 Density Volume kg/m m/kg 0.001586 Subcooled 0.0015903 Subcooled 0.06025 Superheated Quality Phase X Sat. Liquid Sat. Liquid Gas 0.06025 0.9123 2-Phase Determine the following: a) Work of turbine b) Pump work (NH3) c) Pump work (Evaporator) at 30 kg/s, 100 psi d) Pump work (Condenser) at 50 kg/s, 60 psi e) Heat Transfer at Evaporator f) Work net g) Cycle efficiency The design parameters consisted of a hybrid cycle OTEC system located 39 km off the shores of Jamaica, with ammonia selected as the working fluid. The surface temperature of the water was 25C, and the deep-water temperature at 1000 m was 6C. The mass flow rate was 236.59 kg/s, and the pipe diameter was 1.91m. Also, data for NH3 are given below: State Temperature Pressure Enthalpy Entropy K 1 279 0.53168 kJ/kg 370.32 2 281.12 2.6056 3 370 2.6056 4 380.52 1761.12 283 0.61186 1507.6 kJ/kg-K 1.5694 630.48 1.5972 628.81 5.7881 16.597 5.7881 16.597 Density Volume kg/m m/kg 0.001586 Subcooled 0.0015903 Subcooled 0.06025 Superheated Quality Phase X Sat. Liquid Sat. Liquid Gas 0.06025 0.9123 2-Phase Determine the following: a) Work of turbine b) Pump work (NH3) c) Pump work (Evaporator) at 30 kg/s, 100 psi d) Pump work (Condenser) at 50 kg/s, 60 psi e) Heat Transfer at Evaporator f) Work net g) Cycle efficiency