Apresentação TCC 2 - Leonardo Ribeiro de Paula

[WASHINGTON ORLANDO IRRAZABAL BOHORQUEZ]

Prezados

Convido a todos para a apresentação de TCC II do discente Leonardo Ribeiro de Paula, requisito prévio à obtenção do título de Bacharel em Engenharia Mecânica. A apresentação do TCC II será realizada conforme segue:

Data: quinta-feira 15/01/2026.

Horário: 16:30 - 17:00.

Local: sala 4260 do Bloco da Engenharia Mecânica.

Title:  Energetic and Exergetic Assessment of CSP-CCGT Integration for Hydrogen Production and Use in Power Generation.

Abstract: The following work aims to analyze the integration of Concentrated Solar Power (CSP) plants with combined cycles (Rankine and Brayton) for the production and use of hydrogen in electricity generation. This article contains the simulation of a solar hybrid gas turbine with a capacity of 15 MWe, combined with high, medium, and low-pressure steam turbines generating 10 MWe. The analysis is conducted for the gas turbine operating with 20% and 40% hydrogen as fuel, and 80% and 60% natural gas, respectively. The Concentrated Solar Power (CSP) plant consists of a field with 140 heliostats and 280 m² of mirror area. Through the study, it was possible to observe and understand the climatic dynamics at the plant's location, noting that the thermal energy generated by the CSP in the spring and summer months is on average 23% higher than the energy generated in the autumn and winter months. As a result, a decrease of 38.8% in the fuel mass flow consumed during daytime periods compared to nighttime periods was observed, representing approximately 8157 tons of fuel saved per year and a reduction of 6.5 tons of CO2 emitted annually into the environment. When comparing the turbine operating with 40% and 20% hydrogen, a 14.1% decrease in fuel mass flow was also observed. However, the higher the hydrogen content, the greater the production. An increase of 37.4% in hydrogen production and 40.1% in electricity consumption by the electrolyzer was observed when comparing the turbine operating with 40% and 20% hydrogen, which affected the energy delivered to the end consumer by 7.3%. In the exergy analysis, the combustion chamber of the gas turbine, using fuels with hydrogen concentrations of 20% and 40%, showed similar exergy efficiencies of 70% and 74%, respectively. This indicates that the exergy efficiency of the combustion chamber is quite high, especially considering that the air has already been preheated in the solar receiver, which has an exergy efficiency of 92%.

Banca Examinadora: De acordo com o Artigo 22  § 1 e § 2 das normas vigentes de TCC do Curso de Engenharia Mecânica, quando o aluno orientando tiver um artigo científico aprovado para publicação em periódico qualificado pela CAPES no nível B2 (ou acima) na área de avaliação de Engenharias III, ou um artigo científico aprovado para publicação em congresso nacional ou internacional,  não se exige a formação da banca examinadora de TCC descrita no Artigo 18.  

                                

Atenciosamente,

Washington Orlando Irrazabal Bohorquez

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D.Sc., Aeronautics and Mechanical Engineering

Leader, Center of Excellence on Propulsion Systems and Energy

Associate Professor of Turbomachinery

Department of Mechanical Engineering

Faculty of Engineering

Federal University of Juiz de Fora - MG - Brazil

Phones: +55 32 2102-6488

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