International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Performance Analysis of Steam Turbine Capacity of 35 MW at Geothermal Power Plant

Abstract

Geothermal Power Plant has the main component, namely turbines. The decrease in turbine performance will affect the reliability of the plant and the generation power, the writing of this report aims to find out the main processes and components in the power plant. Then find out the performance of the turbine in the geothermal power plant to find out the performance of the turbine. After obtaining the turbine performance results, the authors identified parameters that affect turbine performance, and then to conclude the current performance conditions, the authors made a comparison between actual performance and performance by design. During operation, it is estimated that the efficiency of the turbine has decreased due to several factors such as frequent derating (decrease in load) or trip (unit shutdown), factors of length of maintenance, errors in operation and maintenance and other factors. Therefore, it is necessary to analyze the efficiency of the turbine whether the turbine is still within the limits of reliable conditions or not.

The results of the analysis by taking samples for 16 days obtained the average efficiency of turbines at unit X plants is currently 74.40%. When compared to turbine efficiency by design of 75.28%, the turbine efficiency value is currently decreasing by ±0.88%.

Country : Indonesia

1 Ojo Kurdi2 Paryanto3 Sulardjaka4 Reza Poerwandito

  1. Mechanical Engineering Department, Diponegoro University, Semarang, Indonesia & Program Studi Program Profesi Insinyur Fakultas JPII, Universitas Diponegoro, Semarang, Indonesia
  2. Mechanical Engineering Department, Diponegoro University, Semarang, Indonesia & Program Studi Program Profesi Insinyur Fakultas JPII, Universitas Diponegoro, Semarang, Indonesia
  3. Program Studi Program Profesi Insinyur Fakultas JPII, Universitas Diponegoro, Semarang, Indonesia
  4. Mechanical Engineering Department, Diponegoro University, Semarang, Indonesia

IRJIET, Volume 7, Issue 5, May 2023 pp. 334-340

doi.org/10.47001/IRJIET/2023.705049

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