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Control factors and levels used in the analysis.
| Symbols | Control Factors | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|
| A | Working fluid | R113 | R141b | R123 | R245fa | R114 | R600 |
| B | Evaporation temperature (°C) | 100.0 | 130.0 | 145.0 | |||
| C | Condensation temperature (°C) | 25.0 | 35.0 | 45.0 | |||
| D | Expander efficiency | 0.7 | 0.8 | 0.9 | |||
| E | Pump efficiency | 0.7 | 0.8 | 0.9 | |||
| F | Superheating (°C) | 2.0 | 5.0 | 10.0 | |||
| G | Subcooling (°C) | 2.0 | 5.0 | 10.0 |
