Estimativa de estados e parâmetros para microtrocadores de calor utilizando filtros de partículas

• Ano de defesa: 2016
• Autor(a) principal: Cosmo, Marcos Palácio
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Engenharia Mecânica; Centro Tecnológico; UFES; Programa de Pós-Graduação em Engenharia Mecânica
• Palavras-chave em Português: Particle Filters; Inverse Problems in Microchannels; Micro-heat exchanger; Conjugated problem; Filtro de partículas; Problemas inversos em Micro-sistemas; Microtrocadores de calor; Problemas Conjugados; Engenharia Mecânica; 621
• Link de acesso: http://repositorio.ufes.br/handle/10/9739

The control of the temperature field in photovoltaic cells has fundamental importance for its correct functioning. This work deals with the analysis through inverse problems involving two Micro-heat exchanger composed respectively of one and three circular microchannels. These equipments are commonly used in the temperature control of photovoltaic cells, its efficiency is directly associated with the flow velocities inside the microchannels that make up the Micro-heat. In this work, estimates were obtained for the flow velocities of the fluid inside the microchannels and, also, for the entire temperature field of the Micro-heat exchanger. The solution of the associated direct problem was obtained through Fluent software (ANSYS) that was interconnected to the MatLab platform. The MatLab was used in the implementation of the SIR Filter, on the inverse problem. The results obtained by simulated measurements of temperature showed that the fluid velocities and the temperature range of the Micro-heat exchanger can be estimated accurately in the presence of different noise levels in the measurements.