Research Article
Complementary Configuration and Optimal Energy Flow of CCHP-ORC Systems Using a Matrix Modeling Approach
| | Symbol | Variable | Value |
| | | Efficiency of PGU in CCHP-ORC system | 0.35 |
| | | Generation efficiency SP system | 0.40 |
| | | Efficiency of heating unit | 0.78 |
| | | Efficiency of auxiliary boiler | 0.78 |
| | | Efficiency of heat recovery system | 0.81 |
| | | Coefficient of performance of ORC | 0.17 |
| | | Coefficient of performance of absorption chiller | 0.72 |
| | | Coefficient of performance of electric chiller | 2.98 |
| | | Transmission efficiency of local grid | 0.92 |
| | | emission conversion factor of electricity (g/kW h) | 970 |
| | | emission conversion factor of natural gas (g/kW h) | 218 |
| | | Carbon tax rates (yuan/kW h) | 0.00002 |
| | | Electricity rates (yuan/kW h) | 0.642 |
| | | Natural gas rates (yuan/kW h) | 0.375 |
| | | Unit price of PGU (yuan/kW h) | 6800 |
| | | Unit price of auxiliary boiler (yuan/kW h) | 300 |
| | | Unit price of heating unit (yuan/kW h) | 200 |
| | | Unit price of absorption chiller (yuan/kW h) | 1200 |
| | | Unit price of electric chiller (yuan/kW h) | 970 |
| | | Unit price of ORC (yuan/kW ) | 12000 |
| | | Facilities’ lives (year) | 20 |
| | | Coefficient of PEC | 0.6 |
| | | Coefficient of HTC | 0.3 |
| | | Coefficient of CDE | 0.1 |
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