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中文摘要：
利用单轴恒速燃气轮机典型变工况计算方法和余热锅炉考虑换热系数的变工况计算方法，对冷热电联产系统的变工况进行了分析：高负荷时联产系统有明显的节能优势；但随负荷的降低，优势不断减少：在负荷降低到一定程度之后已经不如参照系统性能。为改善系统全工况性能，可将联产系统与蓄能技术有机结合。依靠对某建筑典型夏、冬季全天冷、热负荷供应进行分析，可以看到蓄能的使用使联产系统的节能率在较高基础上进一步得到提高。
英文摘要：
Utilizing the typical analytical solution of single shaft constant rotating speed gas turbine and considering the variation of heat transfer coefficients of HRSG the CCHP part-load performance is analyzed. In higher load, the CCHP owns obvious saving energy potential. With the decrease of the load, the advantage is reduced; and its performance is worse than traditional systems after the load is low enough. To improve CCHP all-operation performance, the phase change storage system and the potential storage system are combined with CCHP. Through the simulation of some building all-operation heating and cooling demands in winter and summer, respectively, it is found that the utilization of storage systems makes FESR of CCHP be increased in all-operation.
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