The Effect of the Number of Second-Stage Steam Turbine Blades on Performance and Efficiency
Pengaruh Jumlah Sudu Turbin Uap Bertingkat Kedua terhadap Performa dan Efisiensi
DOI:
https://doi.org/10.21070/ups.8287Keywords:
Turbine efficiency, number of blades, torqueAbstract
A performance analysis of a small-scale steam turbine was conducted by varying blade count, steam pressure, and rotational speed to find the optimal configuration. Results showed that increasing the blade number from 5 to 9 consistently improved power, efficiency, and torque. The 9-blade setup delivered the best performance, with a peak power of 1.46 watts, maximum efficiency of 53%, and torque of 0.024 Nm. Steam pressure of 60 psi produced the highest values across all metrics. Each blade count had an optimal rotational speed: 430 rpm for 5 blades, 540 rpm for 7 blades, and 580–590 rpm for 9 blades. Exceeding these speeds significantly reduced efficiency, in some cases down to 0%. Therefore, the optimal performance is achieved using 9 blades, 60 psi steam pressure, and a speed of 580–590 rpm, providing the best combination of power output, torque, and efficiency for small-scale steam turbines.
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