The combined cooling,heating,and power system(CCHP)boasts efficient energy use and flexible operation.The CCHP integrated system for energy storage battery was designed,with the refined mathematical models of the key components established,and the influence of the compressor and turbine efficiency and ambient temperature on CCHP performance studied.The thermodynamic performance of the CCHP at comprehensive conditions and the charging-discharging characteristics of the battery energy storage system were investigated according to the typical modes of chilling and heating.The results show that the ambient temperature has a significant influence on the performance of CCHP.The maximum heat supply decreases with the decrease in the ambient temperature,and the maximum chilling supply decreases with the increase in the ambient temperature.The cooling load and electric load fluctuate greatly throughout the day in the chilling mode,with the average value for cooling load and electric load representing only about 39.9％of the rated load,and an average energy utilization coefficient of 0.712.In the heating mode,there is insignificant fluctuation of power generation efficiency,heating coefficient and energy utilization coefficient on the typical day,which are all higher than the corresponding indexes in the chilling mode.
关键词
燃气轮机/冷热电联供/性能/全工况/储能电池
Key words
gas turbine/combined cooling,heating and power system/performance/comprehensive conditions/energy storage battery
维普
万方数据