Table 8 Environmental sustainability analysis of sCO2 cycles (Simple, recuperator, recuperator with ORC, recuperator with MED).
Component | Simple cycle | Recuperator cycle | Recuperator cycle with ORC | Recuperator cycle with MED | ||||
|---|---|---|---|---|---|---|---|---|
Depletion Number (DP) | Sustainability Index (SI) | Depletion Number (DP) | Sustainability Index (SI) | Depletion Number (DP) | Sustainability Index (SI) | Depletion Number (DP) | Sustainability Index (SI) | |
sCO2 Turbine | 0.053 | 18.870 | 0.053 | 18.868 | 0.053 | 18.868 | 0.053 | 18.868 |
sCO2 Pump | 0.179 | 5.590 | 0.179 | 5.587 | 0.179 | 5.587 | 0.179 | 5.587 |
sCO2 Recuperator | - | - | 0.720 | 1.389 | 0.371 | 2.695 | 0.371 | 2.695 |
sCO2 Condenser | 0.855 | 1.170 | 0.835 | 1.198 | 0.486 | 2.058 | 0.486 | 2.058 |
sCO2 HRSG | 0.551 | 1.810 | 0.507 | 1.972 | 0.251 | 3.984 | 0.251 | 3.984 |
ORC Turbine | - | - | - | - | 0.075 | 13.334 | - | - |
ORC Pump | - | - | - | - | 0.195 | 5.128 | - | - |
ORC Condenser | - | - | - | - | 0.468 | 2.137 | - | - |
ORC HRSG | - | - | - | - | 0.304 | 3.289 | - | - |
Cycles | 0.520 | 1.920 | 0.479 | 2.090 | 0.312 | 3.205 | 0.263 | 3.802 |
