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COBEM 2019
25th International Congress of Mechanical Engineering
Development of a Low-Cost Apparatus for Low Speed Anemometer Calibration
Submission Author:
Felipe Person Malta , SP , Brazil
Co-Authors:
Felipe Person Malta, Thales De Freitas Villas Bôas, Cyro Albuquerque Neto
Presenter: Felipe Person Malta
doi://10.26678/ABCM.COBEM2019.COB2019-1474
Abstract
A modified version of de laminar pipe flow method is used to provide an accessible and inexpensive apparatus to calibrate hot-wire anemometers with low speed velocities. The apparatus consists of a PVC pipe, a fluid conditioner, a container for storing water with a flow control valve, a graduated tank to store the exiting water, and a stopwatch for mark the time. The air enters the PVC pipe, passes through the fluid conditioner and is measured by the anemometer, while the valve is open, flowing water from the container to the graduated tank. The velocities obtained were very close to the manufacturer curve. The standard measurement uncertainties obtained for velocity ranged from 0.51% to 0.85%, which was considered small for this type of experiment.
Keywords
anemometer, calibration, flow measurement, low speed
