Abstract
Abstract. Differential pressure flowmeters are commonly used in industrial applications where, however, the upstream flow conditions are usually highly disturbed, caused by the presence, in the network pipe, of elbows, valves, etc. To achieve accurate flow measurements, the use of the cone meter is recommended as the flowmeter has the property to normalize the flow both upstream and downstream. In this paper, the authors present a cone flowmeter of new geometry that allows them to obtain better performance with respect to the original one; in particular, it provides a higher discharge coefficient (Cd) for a wider range of operating conditions.
Highlights
Accurate flow measurements are required in many industry applications
The authors present a series of results about the evaluation of the performance ensured by the cones, with the purpose of pointing out the enhancements provided by the improved geometry
The discharge coefficient has been calculated by means of Eq (1) using the data obtained from the CFD simulations and the experimental tests
Summary
Accurate flow measurements are required in many industry applications. The ability to accurately and cheaply measure the flow rate has, a significant economic impact upon operating costs in control and production processes of several industries. The obstruction flowmeters are commonly used in typical industrial applications. Examples are the orifice meter, the nozzle meter, the Venturi meter, and Pitot meter. Orifice devices are widely used due to their smaller size and low cost, but their lower discharge coefficient, along with occurring inaccuracies in the measurement, due to erosion and corrosion of the plates (Shah et al, 2012), means their choice is discouraged where the measurement accuracy is important. The nozzle and Venturi meters present higher discharge coefficients, and, the most accurate flow rate evaluations
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