Maisotsenko燃气轮机循环技术经济分析与参数优化  

Technical-economic analysis and parameter optimization of Maisotsenko gas turbine cycle

作　　者：施其乐 何纬峰[1,2] 苏鹏飞 姚照辉[1] 高燕飞 韩东 SHI Qile;HE Weifeng;SU Pengfei;YAO Zhaohui;GAO Yanfei;HAN Dong(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Collaborative Innovation Center for Advanced Aero-Engine,Beijing 100191,China;State Key Laboratory of Long-life High Temperature Materials(Dongfang Electric Corporation Dongfang Turbine Co.,Ltd.,),Deyang 618000,Sichuan,China)

机构地区：[1]南京航空航天大学能源与动力学院,南京210016 [2]先进航空发动机协同创新中心,北京100191 [3]长寿命高温材料国家重点实验室(东方电气集团东方汽轮机有限公司),四川德阳618000

出　　处：《哈尔滨工业大学学报》2024年第6期143-151,共9页Journal of Harbin Institute of Technology

基　　金：长寿命高温材料国家重点实验室基金(DEC8300CG202210279EE280285);中央高校基本科研业务费(501XTCX2023146001)。

摘　　要：Maisotsenko燃气轮机循环(MGTC)的能效需进一步提升且其经济适用性未被合理评估,为此,区别于具备后冷及回热过程的两级MGTC,充分考虑对于冷却水的重复使用和能量回收,构建另耦合有中冷过程的3级MGTC系统(IMGTC)布局。研究压比(R_c)、饱和器出口气流湿化程度(H_(ASD))以及燃烧室出口温度(T_(CO))对于热效率、饱和器载水量、当量二氧化碳排放(E_(EC))和平准化电力成本(C_(LOE))的影响。最后,基于ISIGHT平台对系统展开多目标优化并筛选出最佳参数组合。结果表明,IMGTC的中冷器及其能效增进能够调节并有效减少饱和器载水量,可实现IMGTC系统饱和器最低载水量仅为无中冷模式下饱和器载水量的57.55%。多目标优化表明,IMGTC在采用最佳参数组合时热效率达49.89%,E_(EC)和C_(LOE)分别仅为5.496 kg/s和0.059 5 USD/kWh。研究证实了IMGTC相比MGTC在热力学性能及经济性方面的显著优势。The thermal efficiency of the Maisotsenko gas turbine cycle(MGTC)needs to be further improved,and its economic feasibility has not been properly evaluated.Unlike the two-stage MGTC with aftercooling and regenerative processes,a three-stage MGTC system(IMGTC)layout with coupling of intercooling process was constructed by fully considering the reuse of cooling water and energy recovery.The effects of pressure ratio(R c),air saturator degree of humidification(H ASD)and combustor outlet temperature(T CO)on thermal efficiency,saturation amount of water in saturator,equivalent carbon dioxide emissions(E EC),and levelized cost of electricity(C LOE)were studied.Finally,a multi-objective optimization of the system was carried out on the ISIGHT platform to select the best parameter combination.The results indicate that the intercooler and its energy efficiency improvement in IMGTC can adjust and effectively reduce the saturation amount of water in the saturator.The minimum saturation amount of water in the IMGTC system is only 57.55%of that in the no-intercooling mode.The multi-objective optimization shows that when using the optimal parameter combination,the thermal efficiency of IMGTC reaches 49.89%,while E EC and C LOE are only 5.496 kg/s and 0.0595 USD/kWh,respectively.This research confirms the significant advantages of IMGTC over MGTC in terms of thermodynamic performance and economic feasibility.

关 键 词：Maisotsenko燃气轮机循环 中冷 热效率 载水量 平准化电力成本 

分 类 号：TK115[动力工程及工程热物理—热能工程]