带中间冷却和回热的燃气轮机动态性能的研究

对某舰用燃气轮机进行了中间冷却和回热（ICR）的改造设计,采用按比例缩小压气机的方法,使改造设计后的燃气轮机各部件性能达到了良好的匹配.依照模块化建模的原理,建立了换热器等部件模块,在此基础上,在EASY 5仿真平台上搭建了ICR燃气轮机的系统模型,并对其进行了稳态和动态的仿真试验计算.结论认为,舰用燃气轮机改造为ICR燃气轮机,需要重新设计压气机以平衡由于中间冷却器造成的高压压气机入口折合流量降低的影响;ICR燃气轮机具有较高的效率和良好的变工况性能.图5表1参5

Dynamic Behavior of a Inter-Cooled Gas Turbine Set with Waste Heat Recuperator

A certain marine gas turbine set is being upgrade-redesigned by adding an intercooler and a waste heat recuperator.All components of the inter-cooled set with recuperator are made to match each other well,after the capacity of the compressor has been reduced somewhat in design on the similarity basis.In accordance with the idea of modular design method,modules for all the components of the set,such as the heat exchanger,were set up.With them as a basis,a model of the whole inter-cooled gas turbine set with waste heat recuperator was established on the EASY5 simulation platform and the static,as well as the dynamic,behavior of the set,obtained by simulation test and calculation.Conclusions have herewith been drawn that,for reconstructing the said marine gas turbine set into one with added inter-cooler and waste heat recuperator,it is necessary that the compressor be redesigned to compensate for the effect of flow modification for a reduced volume,caused by the intercooler put at the high pressure compressor's inlet.Intercooled gas turbine sets with waste heat recuperation are featured by higher efficiency and improved dynamic performance. Figs 5,table 1 and refs 5.