Optimization Analysis of Large-scale Community LNG Distributed Multi-supply System
In an effort to improve the energy structure and achieve carbon peaking and carbon neutrality goals,taking a large-scale community with a population of 100 000 as the research object,the loads of gas,cooling,heating and electricity in the community are predicted.Based on the predicted results,the EBSILON software is used to establish the LNG distributed multi-supply system,encompassing modules such as gas turbine,waste heat utilization and refrigeration.Subsequently,the system is optimized to facili-tate the LNG cold energy utilization,flue gas waste heat utilization and back pressure for cooling and heating.The net electricity effi-ciency,the first thermal efficiency and the exergy efficiency are employed to evaluate the performance of the system.The results indi-cate that under design conditions the above three indicators of this system surpass those of other multi-supply systems.
distributed multi-supply systemLNG cold energy utilizationflue gas waste heat utilization