Complexity / 2019 / Article / Tab 2

Research Article

Complementary Configuration and Optimal Energy Flow of CCHP-ORC Systems Using a Matrix Modeling Approach

Table 2

System coefficients.

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 PEC0.6

Coefficient of HTC0.3

Coefficient of CDE0.1

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