Evaluation Rainfall Regime at the Hydroelectric Power Plant Toward Climate Change

  • Francisco Pereira Energy Engineering, State University of Rio Grande do Sul, Brazil
  • Elison Eduardo Energy Engineering, State University of Rio Grande do Sul, Brazil
  • José Leandro Néris Environmental and Sanitary Engineering, Don Bosco College of Porto Alegre, Brazil
  • Matheus Rippel Environmental and Sanitary Engineering, Don Bosco College of Porto Alegre, Brazil
  • Claudinéia Brazil Energy Engineering, State University of Rio Grande do Sul, Brazil and Environmental and Sanitary Engineering, Don Bosco College of Porto Alegre, Brazil
  • Luciane Salvi Environmental and Sanitary Engineering, Don Bosco College of Porto Alegre, Brazil
  • Nei Marçal Environmental and Sanitary Engineering, Don Bosco College of Porto Alegre, Brazil

Abstract

The hydroelectric plants are first in the Brazilian energy matrix, so irregularities in the rainfall regime can affect the energy generation, thus evidencing the need to know the rainfall distribution in the studied area. This work aimed to evaluate possible analysis of the impacts of climate change on the rainfall regime in the Machadinho hydroelectric region. For the research development, the IPCC-AR5 pessimistic scenario was used, representing a scenario with a continuous population growth and high carbon dioxide emissions. From the historical series and organized projections, precipitation anomalies were calculated. Analyzing the difference between the average of the month and the climatological normal, it was inferred that the model used presented a positive trend for precipitation in the period from 2026 - 2100, projecting anomalies between 25 and 200 mm per month. A greater amplitude is observed in the precipitation of 2076-2100, indicating an increase in the occurrence of extreme events of precipitation, mainly in the spring period. Considering that the rains in the Machadinho hydroelectric region are increasing in the scenarios analyzed, the average water level in the reservoir of the plant tends to increase.

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Published
2017-10-22
How to Cite
PEREIRA, Francisco et al. Evaluation Rainfall Regime at the Hydroelectric Power Plant Toward Climate Change. Journal of Contemporary Urban Affairs, [S.l.], v. 1, n. 3, p. 62-65, oct. 2017. ISSN 2475-6164. Available at: <http://ijcua.com/index.php/ijcua/article/view/46>. Date accessed: 18 nov. 2017.
Section
Third International Conference on Environment, Engineering & Energy ,Toronto, Ca