Dissertação

Technological and economical assessment on hydrogen energy conversion systems based in Gas Turbines EVALUATED

In order to contribute to the ongoing development of hydrogen technology, this study investigates the possibilities of hydrogen combustion and current status for hydrogen gas turbine technology. The study includes the model of combustion chamber developed in order to simulate the formation of emissions during combustion of selected fuels and fuel mixture of hydrogen and methane. Such parameters as adiabatic flame temperature, laminar flame velocity and concentration of emission has been investigated, with regard to the equivalence ratio ranging between 0.5 and 3.5. The study addresses NOx emission as a main limitation for the hydrogen gas turbines development and indicates the need and possible solutions to mitigate high emissions during hydrogen combustion. Moreover, the study addresses the environmental impact of water resulting from the implementation of hydrogen technology. The study contains a techno-economic study of hydrogen and gas turbine technology including estimation of costs connected with the implementation of large scale heavy duty gas turbine and brief analysis of the expenses connected with the micro-scale gas turbine installation. Moreover the cost of green hydrogen production has been assessed together with sensitivity analysis being conducted. The sensitivity analysis of green hydrogen costs indicates the importance of oxygen revenues and its sales in order to obtain low green hydrogen prices.
hidrogénio, tecnologia de turbinas a gás, emissões, combustão baixa de NOx

outubro 13, 2021, 11:0

Publicação

Obra sujeita a Direitos de Autor

Orientação

ORIENTADOR

Edgar Caetano Fernandes

Departamento de Engenharia Mecânica (DEM)

Professor Auxiliar

ORIENTADOR

Rui Pedro da Costa Neto

Centro de Estudos em Inovação, Tecnologia e Políticas de Desenvolvimento (IN)

Investigador Auxiliar