To accurately assess the overall performance of integrated energy systems,with a focus on their key characteristics of low carbon emissions and high efficiency,and to facilitate the safe integration of renewable energy,this study proposes a weighted energy utilization efficiency index.The integrated energy system in industrial parks is identified as a typical scenario for the application of comprehensive energy.Considering the relatively low energy conversion efficiency of renewable sources in these systems,the study evaluates the performance of the renewable and fossil fuel energy systems using energy efficiency ratios and primary energy utilization rates.Moreover,the proportion of supplied energy is utilized as a weighting factor to indicate the system's relative significance within the total energy framework,leading to the calculation of the weighted energy utilization efficiency for the park's integrated energy system.Through comparative analysis with conventional metrics such as primary energy utilization rate and exergy efficiency,the results indicate that the proposed index can effectively reflect the level of renewable energy integration,showcasing the system's core features of low carbon and high efficiency.This is crucial for directing strategies towards energy saving and consumption reduction.
关键词
综合能源系统/性能分析/能效评价
Key words
integrated energy system/performance analysis/evaluation of energy efficiency
维普
万方数据