Banca de QUALIFICAÇÃO: RAFAEL PINHO FURTADO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RAFAEL PINHO FURTADO
DATA : 19/10/2021
HORA: 14:00
LOCAL: Banca será realizada no formato virtual utilizando o Google Meeting
TÍTULO:

Thermodynamic analysis of oxy-fuel gas cycles for CO2 capture

PÁGINAS: 77
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Mecânica
SUBÁREA: Engenharia Térmica
ESPECIALIDADE: Termodinâmica
RESUMO:

With the need to reduce the emission of greenhouse gases, several technologies have been developed aiming at increasing efficiency and also reducing the emission of carbon dioxide (CO2) in thermal power systems. One of the proposals for mitigating CO2 emissions and capturing CO2 is the oxy-fuel combustion technology. n this technology, combustion takes place in the presence of a stream of oxygen with a high degree of purity, in such a way that the combustion products are a stream composed mainly of water and CO2 and other impurities present in the oxygen stream and in the fuel. One of the advantages of oxy-combustion is that it the ease to remove water from combustion products, which can be removed by condensation. On the other hand, to obtain oxygen, an oxygen production unit is required, this unit has high energy consumption and penalizes the efficiency of power systems with oxy-combustion, in these systems an efficiency decrease in the range of 10% is expected. In this work, 3 oxy-fuel gas cycles were chosen among those present in the literature for a comparative analysis: SCOC-CC, CES and E-Matiant. These thermodynamic cycles were modeled in the EES, and as the efficiency of power systems is also an important factor for the mitigation of CO2 emissions, it was proposed to maximize the energy efficiency of these cycles through particle swarm optimization algorithm.The comparative analysis has as main objective to find the advantages and disadvantages of the 3 cycles, taking into account the first and second analysis of thermodynamics. Partial results show that the optimal efficiency found by the optimization algorithm for the SCOC-CC cycle is 6.9% than for a reference plant (conventional combined cycle), moreover the SCOC-CC cycle produces 450g/kWh of CO2 and theoretically 100% of this amount is captured.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1985515 - ANTONIO GARRIDO GALLEGO
Membro Titular - Examinador(a) Interno ao Programa - 1604343 - KARL PETER BURR
Membro Titular - Examinador(a) Externo ao Programa - 1548098 - GILBERTO MARTINS
Membro Titular - Examinador(a) Externo à Instituição - SILVIO DE OLIVEIRA JUNIOR - USP
Membro Suplente - Examinador(a) Interno ao Programa - 1065284 - ANDRE DAMIANI ROCHA
Membro Suplente - Examinador(a) Externo ao Programa - 1977178 - REYNALDO PALACIOS BERECHE