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Analysis of Steam Turbine Generator Overhaul for Efficiency Enhancement at the Power Plant Center of Refinery Unit

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Abstract:

The petroleum production process emphasizes the importance of inspection, analysis, test planning, and providing feedback on rotating equipment. This study discusses the analysis of steam turbine generator overhaul (OH) for efficiency enhancement at the power plant center of refinery unit. The efficiency of steam turbines in power plants is critical for optimizing energy conversion and minimizing operational costs. This study analyzes the impact of a steam turbine generator overhaul on efficiency at a refinery unit power plant. Efficiency was evaluated using Rankine cycle calculations, comparing performance data before and after the overhaul. The findings indicate a 2.63% increase in efficiency, with entropy-temperature analysis revealing energy losses due to scaling buildup and seal strip clearance deterioration. To maintain efficiency and reduce overhaul frequency, demineralized water quality, periodic maintenance, and anti-scaling treatments are recommended. These results highlight the importance of proactive maintenance in sustaining turbine performance and minimizing long-term costs.

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Periodical:

Applied Mechanics and Materials (Volume 932)

Pages:

35-44

DOI:

https://doi.org/10.4028/p-05WTqY

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Online since:

February 2026

Authors:

Nur Annisa Bahar, Byan Wahyu Riyandwita*, Septian Jamaluddin Zakky

Keywords:

Efficiency, Entropy, Inspection, Maintenance, Turbine

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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