Measurement with hexagonal prismatic configuration: an alternative to macromeasuring

ABSTRACT Flow measurements are essential for processes management involving fluids. In water companies, measuring inlets and outlets of water is essential to manage revenue and water losses. The water can be measured through diverse instruments with different application principles. Due to the high acquisition costs of the usual water flow meters, as well the difficulties of installation and maintenance, macro meter in Brazil is deficient. The Pitot Cole Tube is able to determine flow in pipes through the pressure differential. The main advantages are the low cost and easy installation, that may occur with the pipe under load. However, its peaces are fragile and complex. This paper propose the construction of a simple and robust instrument to measure the water flow. The prototype is build with pressure plugs installed on opposite faces of a hexagonal prism, then is evaluated of its effectiveness in water flow measurements. The results were promising given the stability obtained in the calibration coefficient.