Development of Overhaul Maintenance Strategy Gas Turbin Series M701D at PLTGU Ubp Grati
Pengembangan Strategi Pemeliharan Overhoul Pada Gas Turbin Seri M701D Pada PLTGU Ubp Grati
DOI:
https://doi.org/10.21070/pels.v10i1.3046Keywords:
Brayton Cycle, Efficiency, Gas Turbine, Overhaul Maintenance, Power Plant PerformanceAbstract
General Background Gas turbine power plants play a pivotal role in maintaining electrical grid stability through reliable combined-cycle generation. Specific Background Heavy-duty gas turbines operating under continuous thermal and mechanical stress require systematic inspection and maintenance to sustain operational parameters. Knowledge Gap While thermodynamic evaluations based on the Brayton cycle are common, comprehensive empirical evaluations quantifying post-overhaul performance gains specifically for the M701D series gas turbine remain limited. Aims This study evaluates the thermal performance, component efficiencies, and power output of an M701D series gas turbine at PLTGU UBP Grati before and after a major overhaul inspection. Results Thermodynamic calculations under a 100.25 MW operational load demonstrate an increase in compressor efficiency from 80.19% to 80.98% and turbine efficiency from 44.84% to 45.50%, alongside a reduction in heat input from 354.70 MW to 345.37 MW. Novelty A detailed Brayton cycle analysis demonstrates that rotor replacement and comprehensive turbine cleaning directly improve overall thermal efficiency. Implications These findings provide essential empirical data for power plant management to optimize maintenance schedules and improve overall operational productivity.
Key Findings Highlights
Turbine Inspection Increases Compressor Efficiency To 80.98%
System Overhaul Reduces Thermal Heat Input To 345.37 MW
Rotor Replacement Significantly Improves Overall Brayton Cycle Performance
Keywords Brayton Cycle, Efficiency, Gas Turbine, Overhaul Maintenance, Power Plant Performance
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