基于有机朗肯循环的综合能源系统集成优化OA

To improve the complementary use and efficient conversion of multiple energy sources in regional energy systems,this paper proposed an integrated energy system coupled with an organic Rankine cycle.A system model consisting of solar collectors,an organic Rankine cycle unit,an absorption refrigeration unit,a heat exchanger,and thermal storage devices was developed.Two system layouts,namely series and parallel configurations,were designed and compared.Based on thermodynamic modelling and the NSGA-II algorithm,the effects of different working fluids,including Toluene,Benzene,Cyclohexane,MM,R113,and R601,on the overall solar energy utilization rate,initial investment cost,and annual operating cost were evaluated.The results showed that the system using MM as the working fluid achieved the best overall performance under the series configuration,with a solar energy utilization rate of 55.14%and an initial investment cost of 0.63×106 CNY.A case study further demonstrated that the proposed system could meet the load demand of a commercial cold storage facility,with an annual operating cost of 2.150 3 million CNY.The results provided a theoretical basis for the optimal design and application of organic Rankine cycle-based integrated energy systems.