Método numérico/experimental para determinação simultânea de temperatura interna propriedades térmicas de materiais metálicos e não metálicos

• Ano de defesa: 2016
• Autor(a) principal: Mulina, Bruno Henrique Oliveira
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia; Brasil; Programa de Pós-graduação em Engenharia Mecânica
• Palavras-chave em Português: Temperatura; Temperature; Propriedades térmicas; Thermal properties; Problemas inversos; Inverse problems; Métodos in situ; In situ methods; Problemas inversos (Equações diferenciais); Engenharia mecânica; Equipamento industrial - Propriedades térmicas; CNPQ::ENGENHARIAS::ENGENHARIA MECANICA::ENGENHARIA TERMICA
• Link de acesso: https://repositorio.ufu.br/handle/123456789/21470; http://dx.doi.org/10.14393/ufu.te.2018.767

The measurement and analysis of temperature in machinery and electric motors is an excellent tool for industrial maintenance. However, the majority of industrial equipment, such as: bearings and hydraulic pumps, do not have thermal sensors internally installed. Therefore, it is common to measure the temperature on accessible regions of the equipment, such as the external surface. However it is known that external temperature depends on the environment and the internal heat source, which may cause uncertainty in the measurement. In order to determine the internal temperature of industrial equipment, this work proposes the development of a numerical-experimental technique based on a non-invasive method. The technique is based on transient one-dimensional thermal model, inverse problems in heat transfer and experimental data to estimate thermal properties and determine internal temperature of industrial equipment. The proposed technique was evaluated with simulated experiments and comparisons with data from scientific literature. The results obtained demonstrated the feasibility and potential of the technique proposed in this work