冷热电联供系统运行方式性能优化分析  

The Optimal Analysis of CCHP Operating Modes' Performance

作　　者：蒋润花[1,2] 杨晓西[1,2] 杨敏林[2] 秦贯丰[2] 杨小平[2] 

机构地区：[1]华南理工大学强化传热与过程节能教育部重点实验室,广东广州510640 [2]东莞理工学院广东省分布式能源系统重点实验室,广东东莞523808

出　　处：《工程热物理学报》2013年第10期1818-1822,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金面上项目(No.51276042);973计划项目(No.2010CB227306)

摘　　要：对于某一固定的燃气轮机冷热电联供系统,建立联供系统分析模型,确定系统冷电比,即用户负荷的最佳冷电比。当各系数值不变,燃气轮机装机容量不影响系统冷电比,而燃气轮机发电效率越大,联供系统性能越好。对于实际用户负荷,分析冷热电联供系统"以电定冷"和"以冷定电"两种运行方式,当以"以电定冷"运行方式,带电压缩式制冷联供系统性能优于带补燃联供系统性能。当冷电比小于最佳冷电比时,冷热电联供系统采用"以电定冷"运行方式,当冷电比大于最佳冷电比时,冷热电联供系统采用"以冷定电"方式。An analytical model of gas turbine CCHP system was established. Cooling vs. power was determined, which was the optimal cooling vs. power of user＇s load. When each coefficient invariant, cooling vs. power was not affect by gas turbine installed capacity, but was increased with gas turbine power generating efficiency. The generating efficiency was greater, the performance of CCHP system was better. For the actual user＇s load, there were two operating modes, one was operated following the electric load, and the other was operating following cooling load. The performance of CCHP system with electric compression refrigerating unit was better than CCHP system with backup burner when operating following electric load. When the cooling vs. power was less than the optimal cooling vs. power, the operating mode of CCHP system was operated following the electric load. When the cold and power ratio was greater than the optimal cooling power ratio, the operating mode of CCHP system was operated following the cooling load.

关 键 词：冷热电联供系统 以电定冷 以冷定电 电压缩式制冷 补燃 

分 类 号：TK123[动力工程及工程热物理—工程热物理]