01 09 14 sol

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Esercizio 1: Ggas = 665 kg/s TOT = 610 °C cp,m = 1.13 kJ/kg-K G1 = 76.8 kg/s h1 = 3508 kJ/kg h2 = 3093 kJ/kg G3 = 15.6 kg/s h3 = 3041 kJ/kg h4 = 3603 kJ/kg G5 = 10.4 kg/s h5 = 3065 kJ/kg T6 = 331 °C h6,l = 1532 kJ/kg h6,v = 2667 kJ/kg T7 = 230 °C h7,l = 990 kJ/kg h7,v = 2802 kJ/kg T8 = 144 °C h8,l = 605 kJ/kg h8,v = 2738 kJ/kg T9 = 225 °C T10 = 150 °C h10 = 612 kJ/kg DTsc = 5 °C cp,l = 5 kJ/kg-K Perdite th = 0.6 % h9 = 987 kJ/kg Qw HP (eco+eva+sh) = 193613 kW QRH = 47935 kW QshIP = 3728 kW QshLP = 3401 kW QevaIP (incluso DTsc) 28657 kW Qtot acqua = 277334 kW Qfumi = 279008 kW DT fumi = 371 °C Tfumi out IP eva = 239 °C DTpp IP = 8.7 °C Tfumi TG = 610 °C = 883.15 K Tfumi camino = 82 °C = 355.15 K T ambiente = 15 °C = 288.15 K Exergia fumi camino = 7.6 kJ/kg Exergia fumi TG = 307.7 kJ/kg Exergia persa = 2.5 % Esercizio 2: Pel = 850 MWe eta = 43 % PCI = 24 MJ/kg yCO2 = 70 % yS = 3.5 % eta FGD = 95 % MMC = 12 kg/kmole MMS = 32 kg/kmole MMCO2 = 44 kg/kmole MMSO2 = 64 kg/kmole EC = 0.0292 kgC/MJth ECO2 = 0.107 kgCO2/MJth ECO2 = 0.249 kgCO2/MJe ECO2 = 895 kgCO2/MWhe ES = 0.0015 kgS/MJth ESO2 (pre FGD) = 0.0029167 kgSO2/MJth ESO2 (pre FGD) = 0.0067829 kgSO2/MJe ESO2 (pre-FGD) = 24.42 kgSO2/MWhe ESO2 (camino) = 1.221 kgSO2/MWhe Tassa SO2 = 5 €/kgSO2 Carbone base: Ccarb = 60 €/t Ccarb = 2.50 €/GJth Ccombustibile = 5.81 €/GJe Ccombustibile = 20.9 €/MWh CSO2 = 6.10 €/MWh Ctot = 27.0 €/MWh Carbone basso S: yS = 0.6 % Ccarb = 100 €/t Ccarb = 4.17 €/GJth Ccombustibile = 9.69 €/GJe Ccombustibile = 34.9 €/MWh ESO2 (camino) = 0.2 kgSO2/MWhe CSO2 = 1.05 €/MWh Ctot = 35.9 €/MWh