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分析了IGCC中燃气轮机的特点和变工况规律,建立了IGCC燃气轮机子系统的优化模型,并分别以燃气轮机的出力和系统效率为目标,采用Matlab计算软件进行了优化计算.计算结果揭示了燃气轮机子系统的性能变化规律,表明空分系数和氮气回注系数是影响燃气轮机出力和IGCC系统效率的重要参数,也是优化工作的重点对象.优化结果表明:文中实例所确定的IGCC系统具有良好的热力性能.
The characteristics and working conditions of gas turbine in IGCC are analyzed, and the optimization model of IGCC gas turbine subsystem is established, and the output of gas turbine and the system efficiency are respectively taken as objectives and optimized by Matlab software. The calculation results reveal that the gas turbine The results show that the space division coefficient and the nitrogen injection coefficient are important parameters that affect the output of the gas turbine and the efficiency of the IGCC system and are also the focus of the optimization work.The optimization results show that the IGCC system has good thermal performance .