摘要
研究了余热锅炉型三压再热联合循环的性能,用有效度-NTU分析法对余热锅炉各段换热器进行了建模。通过对蒸汽参数优化,联合循环系统效率可提高0.4%,分析了余热锅炉给水温度对系统性能的影响,降低给水温度可提高系统效率,并研究了变工况条件下随负荷变化的最佳蒸汽运行压力变化特点,同时研究了季节变化对联合循环系统性能的影响。
The paper investigates the performance of a General Electric F technology combined cycle with three - pressure,reheat steam cycle heat recovery steam generator （HRSG）. A model of the HRSG is proposed using effectiveness- NTU analytical method, and the models of other components such as gas turbine, steam turbine, condenser etc. are also included. The efficiency of combined cycle can be improved about 0.4% by optimizing the steam cycle parameters. Decreasing the feedwater temperature can also increase the efficiency. Optimal steam pressure under partial load and the effect of seasons on the combined cycle performance are also analyzed.
出处
《燃气轮机技术》
2006年第2期21-24,29,共5页
Gas Turbine Technology
关键词
联合循环
燃气轮机
性能优化
combined cycle
gas turbine
performance optimizing
