大型天然气冷热电三联供系统用户递增过程夏季运行策略适应性研究
Operation strategy adaptability of large-scale natural gas CCHP system during user incremental process in summer
摘要：
对用户增长过程达数年的大型天然气冷热电三联供系统进行了研究。将负荷增加过程从小到大分为4个阶段，分析了系统运行策略的节能性与经济性。结果表明，夏季设计日工况和过渡日工况，离心机组利用内燃机发电联合溴化锂机组供冷，运行费用可分别节省20.67%与22.65%，一次能源消耗量分别减少21.98%与37.04%。
Abstract：
Studies a large-scale natural gas combined cooling heating and power (CCHP) system with users increase in several years. Divides the process of load increasing into four stages, and analyses the energy saving performance and economic performance at different operation strategies. According to the result, by utilizing the electricity generated by internal combustion engines (ICE) to drive centrifugal chillers and the lithium bromide units for cooling in summer, the operation cost can be reduced by 20.67% and 22.65% under the design-day and transition-day conditions, respectively, while the primary energy consumption can be reduced by 21.98% and 37.04%, respectively.
Keywords:combined cooling heating and power (CCHP) system, cooling condition, operation strategy, contrastive analysis, primary energy consumption