Table 7 Energy and Exergy analysis of supercritical carbon dioxide split cycle.
Component | Fluid | Heat transfer/Power(kw) | Thermodynamics first law efficiency | Exergy transfer(kw) | Exergy destruction | Thermodynamics second law efficiency | ||
|---|---|---|---|---|---|---|---|---|
Hot | Cold | (kw) | % | |||||
Turbine | CO2 | 12085 | 90% | 12755 | 669.9 | 5.35 | 94.75 | |
Pump | CO2 | 2481 | 80% | 2038 | 443 | 3.54 | 82.14 | |
Recuperator | CO2 | CO2 | 13393 | Cycle: 23.56% | Hot Side: 5922 Cold Side: 4228 | 1694 | 13.51 | 71.40 |
Condenser | CO2 | Air | 31163 | 4189 | 4189 | 33.43 | 24.41 | |
HRSG-1 | Air (Smoke) | CO2 | 19576 | 1443 | 1443 | 11.51 | 85.67 | |
HRSG-2 | Air (Smoke) | CO2 | 21190 | 4094 | 4094 | 32.66 | 39.23 | |
Sum | – | – | – | – | → | 12532 | 100 | 63.79 % |
