| CV | Calculated value |
| EGM | Entropy generation minimization |
| EGR | Entropy generation rate |
| EGRM | Entropy generation rate minimization |
| FTT | Finite-time thermodynamics |
| HI | Hydrogen iodide |
| OV | Optimal value |
| PR | Production rate |
| PRM | Production rate maximization |
| RV | Reference value |
| S-I | Sulfur-iodine |