Table 10 Environmental sustainability analysis of supercritical carbon dioxide cycles for recuperator cycle with MED and ORC.
Scenario | 1 | 2 | 3 | 4 | 5 | 6 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Component | Depletion number (DP) | Sustainability Index (SI) | Depletion number (DP) | Sustainability Index (SI) | 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 | 18.868 | 0.053 | 18.868 | 0.053 | 18.868 | 0.053 | 18.868 | 0.053 | 18.868 | 0.053 | 18.868 |
sCO2 Pump | 0.179 | 5.587 | 0.179 | 5.587 | 0.179 | 5.587 | 0.179 | 5.587 | 0.179 | 5.587 | 0.179 | 5.587 |
sCO2 Recuperator | 0.371 | 2.695 | 0.549 | 1.821 | 0.371 | 2.695 | 0.471 | 2.123 | 0.371 | 2.695 | 0.657 | 1.522 |
sCO2 Condenser | 0.486 | 2.058 | 0.732 | 1.366 | 0.486 | 2.058 | 0.649 | 1.541 | 0.486 | 2.058 | 0.807 | 1.239 |
sCO2 HRSG | 0.251 | 3.984 | 0.348 | 2.874 | 0.251 | 3.984 | 0.299 | 3.345 | 0.251 | 3.984 | 0.437 | 2.288 |
ORC Turbine | 0.075 | 13.334 | 0.087 | 11.494 | 0.075 | 13.334 | 0.081 | 12.346 | 0.075 | 13.334 | 0.098 | 10.204 |
ORC Pump | 0.196 | 5.102 | 0.196 | 5.102 | 0.196 | 5.102 | 0.196 | 5.102 | 0.196 | 5.102 | 0.196 | 5.102 |
ORC Condenser | 0.468 | 2.137 | 0.118 | 8.475 | 0.468 | 2.137 | 0.229 | 4.367 | 0.468 | 2.137 | 0.908 | 1.101 |
ORC HRSG | 0.403 | 2.481 | 0.279 | 3.584 | 0.436 | 2.294 | 0.299 | 3.345 | 0.346 | 2.890 | 0.460 | 2.463 |
Cycle | 0.303 | 3.300 | 0.385 | 2.597 | 0.291 | 3.436 | 0.349 | 2.865 | 0.312 | 3.205 | 0.449 | 2.22 |
