Ina cogeneration binary cycle, superheated stcam caters the turbine with a mass flow rate of S...

 

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Ina cogeneration binary cycle, superheated stcam caters the turbine with a mass flow rate of S kg/s at 40 bar, 440°C and expands isentropically to 1.5 bar. Half of the flow is extracted at 1.5 bar and used for industrial process heating. The remaining steam passes through a beat exchanger which serves as the boiler of the refrigerant-134a cycle and the condenser for the stcam cycle. The condensate leaves the beat exchanger as saturated liquid at 1 bar, where it is combined with the return flow from the industrial process at 60°C and 1 bar, before being pumpod iscatropically to the steam generator. The refrigerant-134a cycle is an ideal Ranking cycle with refrigerant entering the turbine at 16 bar, 100°C and saturated liquid leaving the condenser at 9 bar. Determine (a) the rate of beat transfer in the steam generator, (b) the net power of the binary cycle, (e) the rate of beat transfer to the industrial process. (25 nzwu) A Superheated Vapor(R-134a) Pressure- 16 bar Temp(°C) vm'kg) h(kJ/kg) s(kJ/kgK) 100°C 0.01602 476.2 1.8467 AIIN Saturation Properties(R-134a) 10'v, (m'kg) (m'kg) Pressure (kPa) (°C) (kJ/kg) (kkg) (kkgK) (kJ/kgK) 900 35.51 0.858 0.02270 101.62 269.31 0.3738 0.9171 1600 57.88 0.940 0.1213 135.96 277.92 0.4792 0.9080 Ina cogeneration binary cycle, superheated stcam caters the turbine with a mass flow rate of S kg/s at 40 bar, 440°C and expands isentropically to 1.5 bar. Half of the flow is extracted at 1.5 bar and used for industrial process heating. The remaining steam passes through a beat exchanger which serves as the boiler of the refrigerant-134a cycle and the condenser for the stcam cycle. The condensate leaves the beat exchanger as saturated liquid at 1 bar, where it is combined with the return flow from the industrial process at 60°C and 1 bar, before being pumpod iscatropically to the steam generator. The refrigerant-134a cycle is an ideal Ranking cycle with refrigerant entering the turbine at 16 bar, 100°C and saturated liquid leaving the condenser at 9 bar. Determine (a) the rate of beat transfer in the steam generator, (b) the net power of the binary cycle, (e) the rate of beat transfer to the industrial process. (25 nzwu) A Superheated Vapor(R-134a) Pressure- 16 bar Temp(°C) vm'kg) h(kJ/kg) s(kJ/kgK) 100°C 0.01602 476.2 1.8467 AIIN Saturation Properties(R-134a) 10'v, (m'kg) (m'kg) Pressure (kPa) (°C) (kJ/kg) (kkg) (kkgK) (kJ/kgK) 900 35.51 0.858 0.02270 101.62 269.31 0.3738 0.9171 1600 57.88 0.940 0.1213 135.96 277.92 0.4792 0.9080

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Solution a The rate of heat transfer in the steam gen... View the full answer