Banca de DEFESA: ALESSON ITALLO RIBEIRO DIAS DA SILVA
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.STUDENT : ALESSON ITALLO RIBEIRO DIAS DA SILVA
DATE: 18/01/2023
TIME: 08:00
LOCAL: Recife - Via Remota
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PAGES: 74
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUMMARY:
Commercial wind turbines installed in large-scale wind farms have an average useful life of 20 years. In Brazil, by 2030, more than 50 wind farms will reach the age of 20 years of operation, representing more than 600 wind turbines with a total power of 940 MW. At the end of the life of wind turbines, engineering currently offers three alternatives: decommissioning, extension of useful life and repowering. Repowering is the alternative that consists of exchanging wind turbines for others with more advanced technology. This work aims at technical and economic analysis, considering, additionally, its interference in neighboring wind farms. The study investigated four parks in different locations, three in the Northeast and one in the Southeast, using three different wind turbines for repowering. The results obtained in the technical analysis were through the WAsP software. The results obtained showed that repowering is technically feasible, since in all the analyzed scenarios there was an increase in the annual energy production and the capacity factor in all scenarios, in addition to reducing losses due to the wake effect in some scenarios. Repowering also proved to be economically viable since, in all configurations, maintaining the tariff, it presented an IRR (Internal Rate of Return) higher than the already installed project. The payback was also attractive since in some cases the payback time is less than 4 years. The distance between the wind farm and its neighbor can be a barrier, since in most cases, changing the wind turbine for another one with greater power and height, implies an increase in its wake.
COMMITTEE MEMBERS:
Presidente - 1130586 - ALEX MAURICIO ARAUJO
Interno - ***.219.824-** - ALVARO ANTONIO OCHOA VILLA - IFPE
Externo ao Programa - 1964070 - ALEXANDRE CARLOS ARAUJO DA COSTA - UFPEExterno à Instituição - GUSTAVO DE NOVAES PIRES LEITE - IFPE