影响燃气轮机及其联合循环特性的因素分析

On factors that Influence the Performance of Gas Turbines and Their Combined Cycles

燃气轮机及其联合循环的出力和热耗受环境和运行参数等众多因素的影响。采用热力学模拟的方法,分析了影响燃气轮机及其联合循环特性的因素,包括:环境温度、大气压力、空气湿度、海拔高度、进排气压力损失、燃料类型、蒸汽循环形式、循环冷却介质等,并给出了各因素与出力和热耗间的量化关系,得出了在选择联合循环的系统组成时,为获得高效率所需考虑的因素以及影响大小的排列次序。

The output and heat consumption, of gas turbines and their combined cycles, depend on a lot of factors, like environment and operational parameters. Making use of thermodynamic simulation methods, the influencing factors, including ambient temperature, atmospheric pressure, air moisture, height above sea level, intake and exhaust flow losses, fuel variety, type of steam cycle used, and the circulating cooling medium, are being analyzed, providing simultaneously the quantitative relationships between output, as well as heat consumption, and all these factors. All factors and their order of importance, that have to be considered for constituting a combined cycle of high efficiency, are thus given.