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Master's Dissertation
DOI
10.11606/D.3.2018.tde-20092018-092013
Document
Author
Full name
Natally Annunciato Siqueira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2018
Supervisor
Committee
Souza, Podalyro Amaral de (President)
Lucca, Yvone de Faria Lemos de
Tiago Filho, Geraldo Lúcio
Title in Portuguese
Medidor de vazão de água, tipo "Pitot-Cole", com configuração prismática hexagonal.
Keywords in Portuguese
Medidor de vazão
Medidor de velocidade
Tubo de Pilot
Vazamento de água (Medição)
Abstract in Portuguese
A medição de vazão é fundamental para a gestão de processos que envolvem fluidos. Em empresas de saneamento, contabilizar as entradas e saídas de água é essencial para gerir faturamentos e perdas. A vazão pode ser mensurada através de diversos instrumentos com diferentes princípios de aplicação. O Tubo Pitot Cole é capaz de determinar a vazão em tubulações através do diferencial de pressão. Trata-se se um equipamento inventado em 1732 por Henri Pitot para determinar a velocidade, e aperfeiçoado por Eduard Cole, em 1896, permitindo sua aplicação em tubulações. As principais vantagens são o baixo custo e fácil instalação, que pode ocorrer com a tubulação em carga. Em contrapartida, a fragilidade e complexidade das suas peças motivaram este trabalho: a elaboração de um instrumento simples e robusto para medir a vazão. Propõe-se a construção de um protótipo com tomadas de pressão instaladas em faces opostas de um prisma hexagonal e a avalia-se a sua viabilidade na medição de vazão. Os resultados mostraram-se promissores dada a estabilidade e forte correlação linear obtida no coeficiente de calibração.
Title in English
Water flow meter, as "Pilot-Cole", with hexagonal prismatic configuration.
Keywords in English
Flow meter
Pitot Tube
Velocity meter
Abstract in English
Flow measurements are essential for processes management that include fluids. In water companies, measuring inlets and outlets of water is essential to manage revenue and water losses. The water flow can be measured through different instruments with different application principles. The Pitot Cole Tube is able to determine flow in pipes through the pressure differential. This device was invented in 1732 by Henri Pitot to determine fluid velocity and it was improved by Eduard Cole in 1896, allowing to apply the instrument in pipes. The main advantages are the low cost and easy installation, that may occur with the pipe under load. However, the fragility and complexity of its pieces motivated this study: the construction of a simple and robust instrument to measure the water flow. It is proposed the construction of a prototype with pressure plugs installed on opposite faces of a hexagonal prism, then evaluation of its effectiveness in water flow measurements. The results were promising given the stability obtained in the calibration coefficient.
 
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Publishing Date
2018-09-21
 
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