Design method for s-CO2 gas turbine power plants

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Design method for s-CO2 gas turbine power plants ( design-method-s-co2-gas-turbine-power-plants )

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viii 2-12 2-13 2-14 2-15 2-16 2-17 2-18 2-19 2-20 2-21 2-22 2-23 2-24 2-25 2-26 2-27 2-28 2-29 List of Figures Regeneration temperature profile for the regenerative Brayton system (ηTR = 50%, T2 = 31.25◦C, P2 = 74 bar, P3 = 520.28 bar, ηTR = 93.4%, ηCM = 85%, ηHR=90%,∆PLS=2%,∆TPN=10◦C). ..................... 17 Cycle exergy balance for the regenerative Brayton system (ηTR = 50%, T2 = 31.25◦C, P2 = 74 bar, P3 = 520.28 bar, ηTR = 93.4%, ηCM = 85%, ηHR = 90%, ∆PLS=2%,∆TPN=10◦C)............................. 19 Process flow diagram of the Brayton recompression system. . . . . . . . . . . . . 20 Turbine inlet temperature for the Brayton recompression system as a function of the compressor discharge pressure and cold side temperature difference, ∆TC,RG1, in the low temperature regenerator (ηTR = 50%, T2 = 31.25◦C, P2 = 74 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2 = 85%, ηHR = 90%, ∆PLS = 2%, ∆TPN = 10◦C). 20 Turbine inlet temperature, CO2 mass flow rate, regenerator power, regenerator effectiveness and mass flow fraction for the Brayton recompression system as a function of the compressor discharge pressure (ηTR = 50%, T2 = 31.25◦C, P2 = 74 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2 = 85%, ηHR = 90%, ∆PLS = 2%, ∆TPN=10◦C). ................................... 21 Turbine inlet temperature and total regenerators load for the Brayton recompres- sion system as a function of the compressor suction temperature and discharge pressure (ηTR = 50%, P2 = 74 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2 = 85%, ηHR=90%,∆PLS=2%,∆TPN=10◦C). ..................... 22 Turbine inlet temperature and total regenerators load for the Brayton recompres- sion system as a function of the turbine and compressors efficiencies (ηTR = 50%, T2 =31.25◦C,P2 =74bar,P3 =300bar,ηHR =90%,∆PLS =2%,∆TPN =10◦C). 23 Turbine inlet temperature and total regenerators load for the Brayton recompres- sion system as a function of the pressure loss and compressor discharge pres- sure (ηTR = 50%, T2 = 31.25◦C, P2 = 74 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2=85%,ηHR=90%,∆TPN=10◦C)...................... 23 Minimum turbine inlet temperature and its correspondent compressor discharge pressure for the Brayton recompression system as a function of the pressure loss (ηTR =50%,T2 =31.25◦C,P2 =74bar,ηHR =90%,∆TPN =10◦C). . . . . . 24 Recompression Brayton system T-s diagram (ηTR = 50%, T2 = 31.25◦C, P2 = 74, P3 = 271.51 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2 = 85%, ηHR = 90%, ∆PLS=2%,∆TPN=10◦C)............................. 25 Regeneration temperature profiles for the Brayton recompression system (ηTR = 50%, T2 = 31.25◦C, P2 = 74, P3 = 271.51 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2=85%,ηHR=90%,∆PLS=2%,∆TPN=10◦C). ............. 25 Cycle exergy balance for the Brayton recompression system (ηTR = 50%, T2 = 31.25◦C, P2 = 74, P3 = 271.51 bar, ηTR = 93.4%, ηCM1 = 85%, ηCM2 = 85%, ηHR=90%,∆PLS=2%,∆TPN=10◦C). ..................... 26 Process flow diagram for the regenerative Rankine system. . . . . . . . . . . . . 27 Turbine inlet temperature, CO2 mass flow rate, regenerator power and effectiveness for the regenerative Rankine system (ηTR = 50%, T2 = −20◦C, ηTR = 93.4%, ηPM=85%,ηHR=90%,∆PLS=2%,∆TPN=10◦C)............... 27 Turbine inlet temperature and regenerator load contour plot for the regenerative Rankine system as a function of the condensing temperature and pump discharge pressure (ηTR = 50%, ηTR = 93.4%, ηPM = 85%, ηHR = 90%, ∆PLS = 2%, ∆TPN=10◦C). ................................... 28 Regenerative Rankine system T-s diagram (ηTR = 50%, T2 = −20◦C, , P3 = 271.51 bar, ηTR = 93.4%, ηPM = 85%, ηHR = 90%, ∆PLS = 2%, ∆TPN = 10◦C). 29 Regenerator temperature profile for the Regenerative Rankine system (ηTR = 50%, T2 = −20◦C, , P3 = 271.51 bar, ηTR = 93.4%, ηPM = 85%, ηHR = 90%, ∆PLS=2%,∆TPN=10◦C)............................. 29 Cycle exergy balance (ηTR = 50%, T2 = −20◦C, , P3 = 271.51 bar, ηTR = 93.4%, ηPM=85%,ηHR=90%,∆PLS=2%,∆TPN=10◦C)............... 30 J.S. Bahamonde Noriega Master of Science Thesis

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