Climate impact on combined cycle thermoelectric power plant in hot and humid regions

Nelson Ponce Junior, Jonas Rafael Gazoli, Alessandro Sete, Roberto M.G. Velasquez, Julian David Hunt*, Fabio Tales Bindemann, Wilmar Wounnsoscky, Marcos Aurelio Vasconcelos de Freitas, Gabriela de Ávila Condessa, Kamal Abdel Radi Ismail

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Thermoelectric power plants have been designed to operate in ISO conditions, similar to the temperate climatic conditions of the northern hemisphere. Thus, some equipment used in tropical regions operated outside the ideal conditions, with high relative humidity and ambient temperature. This ends up impairing its efficiency and maximum generation. This paper presents the analysis of 2020 and 2021 hourly electric generation and climatic conditions data for 2020 from the gas based combined cycle Cuiabá Thermoelectric Power Plant, located in the state of Mato Grosso do Sul, center-west region of Brazil. The main objective is to present and discuss the correlations between meteorological conditions and power generation in the plant. Results show a strong correlation between generation and the wet bulb temperature. They also show that high wind speeds, increase thermal losses and the efficiency of the steam cycle. This paper shows that thermal electric power plants are particularly sensitive to climate conditions in hot and humid regions.

Original languageEnglish (US)
Article number101342
JournalResults in Engineering
StatePublished - Sep 2023

Bibliographical note

Funding Information:
This research was funded by the project entitled “Eficientização Energética de Usina Termelétrica a Gás Através do Aproveitamento Termodinâmico do Gás Natural” within the scope of R&D ANEEL (PD-00211-0002/2021) and financed by Âmbar Energia LTDA.

Publisher Copyright:
© 2023 The Authors


  • Combined cycle
  • Energy efficiency
  • Gas turbine
  • Steam turbine
  • Thermoelectric power

ASJC Scopus subject areas

  • General Engineering


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