Abstract
As the energy shortage and environmental problems gradually deepened, the Combined Cooling, Heating and Power (CCHP) system has gained attention for its high efficiency and low emission. In this paper, we compare the CCHP system with the conventional separate supply system, and considered the cost saving as the objective function of the multi-objective optimization. In order to show the energy conservation and environmental protection advantages of CCHP, we set the Green House Gases emission reductions and energy savings as constraint conditions. At last, we determined the optimal economic effect of CCHP and conventional separate supply system by case study. It is indicated that the emission reduction of CCHP system is better than the conventional separate supply system in the study, and when the electric price is higher than 0.11 times of gas price, the cost of CCHP system is smaller.
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