Comparação de Desempenho Energético de Plataformas de Petróleo Baseada no Conceito de Exergia

Abstract

The important agenda of global warming has led the world to seek a lifestyle with less carbon, and due to this guideline many countries have invested in alternatives to make their energy matrix and industrial parks more sustainable by reducing the emission of greenhouse gases. greenhouse effect. Going in this direction, the dissertation sought to address the issue of energy efficiency of industrial processes already in operation, as a more agile and financially less expensive solution to be implemented to achieve the reduction in the desired emissions. To carry out the study, data were collected from the process plant and utilities from thirteen offshore oil production platforms operating on the Brazilian coast. With a methodology based on exergetic analysis, it was possible to determine efficiency indicators, specific destroyed exergy and natural gas utilization index. The efficiency results obtained on the platforms ranged from 80.0% to 99.3%, for the worst and best conditions, respectively. Then, a comparative analysis was carried out in these units, and it was verified that the traditional indicators do not meet the complexities existing in this branch of the industry, and the application of indicators based on exergy, is shown as the best alternative to measure energy performance. Finally, the study resulted in the development of a tool with an online interface, through a panel to monitor the updated performance of the operation, in order to support the managers' quick decision-making regarding the energy expenditures of a platform. petroleum, becoming a means to achieve the objectives and a competitive differential for the organization.