基于燃气马力的燃气轮机性能退化

Performance deterioration of gas horsepower-based gas turbines

建立了基于热力学功势的燃气马力效率与基于能量平衡的传统部件效率之间的函数关系,并引入燃气马力效率健康因子,对燃气轮机由于发生气路故障导致的性能退化进行了数学建模,采用了小偏差的方法推导出了性能退化系数矩阵,从燃气马力转换性能和传统的效率表示的性能对比、各部件之间的燃气马力效率性能比较、燃气轮机系统燃气马力效率性能这三个方面进行了分析研究.结果表明:燃气马力效率从能量转换为有用功的角度能更好地衡量燃气轮机的性能退化.

The relation between the gas horsepower efficiency which based on the thermodynamic work potential and the traditional component efficiency which based on energy balance was founded. The health factors which based on gas horsepower efficiency were imported. The mathematical model of the gas turbine performance deterioration which was due to gas path fault was established by using the gas horsepower efficiency. The performance deterioration matrix was derived by using the small deviation method. The gas horsepower efficiency was contrasted with the traditional efficiency. The gas horsepower efficiency among the components was compared. The gas horsepower efficiency of the gas turbine system was analyzed. The results show that the gas horsepower efficiency can express the gas turbine performance deterioration wonderfully in the point of view of the transfer the stored work potential contained in fuel into useful work.