CAJ | 학술논문

压气机积垢是导致燃气轮机性能退化最常见的原因之一，论文基于燃气轮机气路部件的热力学参数关系式，应用小偏差线性化法，建立了测量参数偏差和性能参数偏差的数学模型。在已经建立的模型中植入压气机积垢过程典型性能退化曲线，最终建立了压气机积垢模型。通过仿真获得了燃油流量等参数在压气机积垢过程中的变化趋势。研究结果表明，由于压气机积垢程度的加重，燃气轮机的燃油消耗量和燃烧室出口温度会逐渐增加，燃气轮机效率会逐渐降低。通过适当的清洗，可以使燃气轮机性能得到部分恢复，进而使燃气轮机总的运行费用和热端部件承受的温度降低。
압기궤적구시도치연기륜궤성능퇴화최상견적원인지일，논문기우연기륜궤기로부건적열역학삼수관계식，응용소편차선성화법，건립료측량삼수편차화성능삼수편차적수학모형。재이경건립적모형중식입압기궤적구과정전형성능퇴화곡선，최종건립료압기궤적구모형。통과방진획득료연유류량등삼수재압기궤적구과정중적변화추세。연구결과표명，유우압기궤적구정도적가중，연기륜궤적연유소모량화연소실출구온도회축점증가，연기륜궤효솔회축점강저。통과괄당적청세，가이사연기륜궤성능득도부분회복，진이사연기륜궤총적운행비용화열단부건승수적온도강저。
The compressor fouling is one of the most common reasons that causing performance degradation of gas turbine .Based on thermodynamic parameters'relationships of gas path components , this paper establish the gas turbine mathematical model of the devia-tion of measurement parameters and the deviation of performance parameters using small deviation linearization method .Typical com-pressor fouling performance-degraded curves have been implanted into the model established .Finally, a compressor fouling model is es-tablished.Then we can obtain measurement parameters such as fuel flow changing trends in the process of compressor fouling through simulation.The result shows gas turbine fuel consumption and combustor exit temperature will gradually increase , the gas turbine effi-ciency will gradually decrease when compressor fouling become more serious ;Through suitable cleaning the compressor , gas turbine performance can be recovered partly .Then the total running cost and the temperature of hot section will be lower .