Aplicação de ciclos rankine orgânicos para geração de eletricidade a partir de calor de processo industrial no Brasil

• Ano de defesa: 2018
• Autor(a) principal: Raphael Guimarães Duarte, Pinto
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-graduação em Planejamento Energético; UFRJ
• Palavras-chave em Português: Recuperação de calor; Planejamento energético; CNPQ::ENGENHARIAS
• Link de acesso: http://hdl.handle.net/11422/12267

The conversion of heat from industrial processes into electricity using Organic Rankine Cycles (ORC) is a low temperature heat recovery solution for the production of electricity in industry. Considering the size and diversity of the Brazilian industrial sector, the adoption of ORCs could increase its 1st and 2nd law energy efficiency. In this study, six industrial subsectors were analyzed (Cement, Steelmaking, Chemistry, Aluminum, Glass and Ceramics), according to each production processes characteristics, Brazilian production size and international background. For each sector, a case study was carried out with a real plant, highlighting the results of energy and exergy (process irreversibilities) balances and technical-economic analysis of the projects. Also, the marginal abatement costs were calculated, indicating a majority of negative values, meaning that the projects would be an economically viable low-carbon option. The extrapolation of the studies for each sector indicated a potential of 490 MW and a total emission reduction of 335 thousand tonnes of CO2 per year. However, the presence of market barriers still hampers the diffusion of technology in Brazilian territory, thus requiring a set of policies proposed in this study.