Análise experimental sobre a utilização de sensores infravermelhos em provadores de vazão de fluidos claros

• Ano de defesa: 2012
• Autor(a) principal: Barone, Marcelo Aiolfi
• 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: Uncertainty; Flow measurement; Gravimetric method; Reproducibility; Primary meter; Pipe prover; Medição de vazão; Método gravimétrico; Reprodutibilidade; Medidor primário; Incerteza; Medidores de fluxo; Detectores infravermelhos; Engenharia Mecânica; 621
• Link de acesso: http://repositorio.ufes.br/handle/10/6231

The work uses a laboratory scaled prototype of primary pipe prover flowmeter in order to assess conformity with the requirements established by technical standards and examine the uncertainties of flow measurement performed, besides to check the reproducibility of measurements, tests with spheres of different diameters, the influence of operating parameters such as operating pressure variation and comparison with gravimetric test. The prototype is plastic tubing and considering statically defined dimensions. Inside tubing, an interfering elastomer sphere is driven by flow provided by a centrifugal pump. The detection system uses infrared light sensors able to detect the spheres passage causing pipeline interference or blockage. The acquisition data system is automatic and records the sphere transit time through each pulse signal detected as well as the pulses generated by a calibrated turbine meter, as comparison of the evaluation of process uncertainties using the technique performance with infrared sensors.