Aiming at the working performance of steam turbine under hydrogen-rich fuel,a refined parameter model of steam turbine was established by combining thermodynamic mechanism with actual operation data by using dual-drive method. The correction coefficient of the velocity loss coefficient of the first-stage stator blade of the steam turbine was proposed to consider the cooling effect,and an alternative model was constructed for the thermal calculation process of the first-stage stator blade of the steam turbine. At the same time,the influence of hydrogen-rich fuel on the flow matching between compressor and steam turbine under off-design conditions and the adjustment of operating parameters and structural parameters were studied. The results show that with the increase of hydrogen volume fraction in the range of 0~18%,the electric power increases and the total efficiency decreases. When the hydrogen volume fraction exceeds 18%,both the electric power and the total efficiency decrease. The research shows that the proposed steam turbine modeling method has good reliability and accuracy.
LI Cheng-bao, LU Gang, WU Wei, JIANG Xiao-ran, YU Sheng-xu, LI Yue-feng.
Parameterized Modeling and Operational Performance of Steam Turbine Structure[J].
Science Technology and Engineering, 2026, 26(4): 1487-1497 DOI:10.12404/j.issn.1671-1815.2409295
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