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- W4247253397 abstract "Gas turbines are an integral part of the supply of natural gas in many parts of the world. In compressor stations, they are used for transporting gas from producing wells to consumers and across extensive networks of pipelines. This paper present how rescheduling of gas turbine overhaul from the baseline condition amid degradation influences the number of the gas turbine to be used in a compressor station without altering the original pipeline design for the desired amount of gas delivery. Eighteen compressor stations with gas turbine engines as the driver to the gas compressor have been investigated. The selected engines models were developed based on public domain specification, using an in-house engine performance simulation software: TURBOMATCH. Three seasons (rainy, dry and hot seasons) were considered in this paper based on the location of Trans-Saharan gas pipeline being investigated. Compressor and turbine were degraded (fouled) as a single type of degradation producing three performance scenarios (optimistic, medium and pessimistic). These scenarios define the levels of deterioration of the gas turbine in comparison with the clean conditions. The baseline case indicated that at a controlled TET, the number of GT used in each compressor station increases with increase in degradation (reduction in flow capacity and isentropic efficiency) which result to a variation in the number of engines per station. The result revealed that the implementation of rescheduled-overhaul on the engines reduces the number of Gas turbine usage at the same degraded and ambient condition of the baseline case. The further result indicated that the optimistic, medium and pessimistic scenarios that used 99, 106 and 120 number of engines for the 18 compression stations at baseline condition reduces to 91, 104 and 115 respectively when rescheduled overhaul was implemented for the same amount of gas to be delivered and at the same operating conditions. The proposed approach will enhance engine life-extension strategies that engine life-cycle managers, or natural gas pipeline investors may adopt to cost-effectively manage their engines while ensuring reliability and safety on the pipeline business." @default.
- W4247253397 created "2022-05-12" @default.
- W4247253397 date "2020-02-22" @default.
- W4247253397 modified "2023-09-30" @default.
- W4247253397 title "The Influence of Rescheduled-Overhaul in determining the number of Gas turbine Usage in Natural Gas Pipeline Transportation Network" @default.
- W4247253397 doi "https://doi.org/10.37703/ajoeer.org.ng/q12020/01" @default.
- W4247253397 hasPublicationYear "2020" @default.
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