Research Article
Completely Recuperative Supercritical CO2 Recompression Brayton/Absorption Combined Power/Cooling Cycle: Performance Assessment and Optimization
Table 5
Optimal values and objective functions of the decision variables and multiobjective functions.
| | Parameters | Multiobjective optimal cases | | Case 1 | Case 2 | Case 3 |
| | 1/3 | 0.1 | 0.4 | | 1/3 | 0.4 | 0.1 | | 1/3 | 0.5 | 0.5 | | TUR1 inlet temperature (K) | 883.2 | 893.13 | 898.97 | | TUR1 inlet pressure (MPa) | 28.94 | 26.44 | 26.28 | | TUR2 inlet pressure (MPa) | 3.2 | 3.4 | 4.0 | | WHE1 outlet degree of overheat (K) | 2.62 | 4.37 | 6.70 | | WHE1 pitch point difference (K) | 23.56 | 28.43 | 20.17 | | TUR2 inlet ammonia concentration | 0.91 | 0.90 | 0.90 | | GEN outlet temperature (K) | 136.9 | 125.87 | 120.35 | | ABS1 outlet ammonia concentration | 0.38 | 0.39 | 0.39 | | Synthetical performance | 60.2% | 47.3% | 51.6% | | Thermal efficiency | 83.38% | 82.36% | 82.33% | | Exergy efficiency | 71.6% | 70.8% | 71.8% | | Unit cost of the system products ($/GJ) | 9.663 | 9.866 | 9.686 |
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