Study material for Power Production from Renewable Energy, shared by the Studwiz community and reviewed by moderators.
Study material for Power Production from Renewable Energy, shared by the Studwiz community and reviewed by moderators.
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Tmin 300 °C TES Capacity (eq. hours) 7 h Tmax 555 °C c molten salts 1.52 kJ/kg/K Wnet_SteamCycle 30 MW density molten salts 1804 kg/m3 Power block efficiency 0.39 - h_working 4000 h Tamb 35 °C opt_eff_average 0.59 - receiver D 8 m DNI_average 710 W/m2 receiver H 11 m eta_clean 0.93 - n° Heliostats 2550 Heliostat relfective surface 120 m^2 eta_opt 0.66 - Receiver. Specifi losses 35 kW/m2 Design DNI 800 W/m2 h_heat trasnfer 75 W/m2/K Surface receiver 276.46 m2 Thermal loss receiver 9676.11 kW Th. Power absorbed by receiver 161568.00 kW Th. Power transferred to HTF 151891.89 kW thermal efficiency (receiver) 0.940 - Total surface heliostats 306000 m2 Th. Power input in PB design 76923.08 kW SM (Solar Multiple) 1.97 - Average Temperature receiver 501.67 °C TES capacity 538.5 MWh 1938461.5 MJ TES Volume 2772.3 m3 DNI_eff 389.5770 W/m2 Average thermal efficiency 0.9188 - Annual electricity 170873.8 MWhel Annual solar energy available 869040 MWh Annual Effciency (sun_to_el) 0.1966 - ASSUMPTIONS P1 22 bar x1 0.1 - Pcond 0.07 bar P2 11 bar Wnet 7.8 MW Paux 440 kW eta_is_TV 0.81 - eta_mecc-el 0.95 - hEq 7800 h CASE A CASE B Exp. Power 8.674 MW c_H2O 4.2 kJ/kg/K Exp. Power (ideal) 10.708 MW η_|| 0.53 - s_out_ST_is 6.552 kJ/kg/K Outlet T fromo ORC 80 °C 353.15 K x_out_is (ST) 0.78 - minimum Reinjection T 55 °C h_out_is (ST) 2041.91 kJ/kg m_liq from flash chamber 71.581 kg/s ∆his 738.76 kJ/kg Tin_liq in ORC 184.070 °C 457.22 K ∆h_reale 598.393 kJ/kg h_out_reale 2182.274 kJ/kg Tml (mean log T) 402.95 K x_out_reale 0.838 - 129.80 °C m_vap_ST 14.495 kg/s ηLorentz 0.23 - h_in_flash 1117.903 ηreale 0.12 - x_out_flash 0.168 - ∆T 104.07 °C m_geofluid 86.076 kg/s Th. Power input ORC 31287.56 kW El. Power output ORC 3736.53 kW El. Power (Compl. system) 11.54 MW Max. Th. Power available…
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