摘要
为了深入研究关键参数对氢混重型燃气轮机总体和关键部件热力性能的影响,构建了氢混重型燃气轮机的热力性能计算模型,阐述了模型中关键参数的定义与设定。研究了不同氢气掺混比例、透平初温、压气机压比和冷却空气量等关键参数对燃气轮机功率和热效率等性能指标的影响,分析了不同氢气掺混比例下的透平气动参数变化,进一步揭示了掺氢对燃气轮机性能的影响机制。结果表明:氢气的掺混比例、透平初温、压比和冷却空气量是影响氢混重型燃气轮机性能的关键参数;掺氢比变化时,透平气流角、出口马赫数等透平气动参数的变化则影响透平气动性能和燃气轮机的热力性能。
In order to investigate the impact of key parameters on the thermodynamic performance of both the overall and critical components of a hydrogen-blended heavy-duty gas turbine,a thermodynamic performance calculation model was established,and the definitions and settings of the key parameters in the moldel were explained.By examining different hydrogen blending ratios,turbine inlet temperatures,compressor pressure ratios,and cooling air volumes,the study assessed their influences on the power output and thermal efficiency of gas turbine.Additionally,changes in turbine aerodynamic parameters under different hydrogen blending ratios were analyzed,and the mechanisms behind the impact of hydrogen blending on gas turbine performance were further revealed.The results show that the mixing ratio of hydrogen,turbine inlet temperature,pressure ratio and cooling air quantity are the key parameters that affect the performance of heavy duty hydrogen blended gas turbine;and the changes in aerodynamic parameters of the turbine such as turbine flow angle and outlet Mach number caused by the hydrogen blending ratio changing will affect the aerodynamic performance of the turbine and the thermodynamic performance of the gas turbine.
作者
朱志劼
徐前
徐望人
史进渊
ZHU Zhijie;XU Qian;XU Wangren;SHI Jinyuan(Shanghai Power Equipment Research Institute Co.,Ltd.,Shanghai 200240,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2024年第9期1482-1492,共11页
Journal of Chinese Society of Power Engineering
基金
国家科技重大专项资助项目(J2019-V-0014-0109)。
关键词
燃气轮机
氢气掺混
热力性能
透平气动性能
gas turbine
hydrogen blending
thermodynamic performance
turbine aerodynamic performance
