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Method and apparatus for measuring the mass flow rate of a fluid

United States Patent

July 2, 2002
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A non invasive method and apparatus is provided to measure the mass flow rate of a multi-phase fluid. An accelerometer is attached to a pipe carrying a multi-phase fluid. Flow related measurements in pipes are sensitive to random velocity fluctuations whose magnitude is proportional to the mean mass flow rate. An analysis of the signal produced by the accelerometer shows a relationship between the mass flow of a fluid and the noise component of the signal of an accelerometer. The noise signal, as defined by the standard deviation of the accelerometer signal allows the method and apparatus of the present invention to non-intrusively measure the mass flow rate of a multi-phase fluid.
Evans; Robert P. (Idaho Falls, ID), Wilkins; S. Curtis (Idaho Falls, ID), Goodrich; Lorenzo D. (Shelley, ID), Blotter; Jonathan D. (Pocatello, ID)
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
09/ 533,523
March 23, 2000
CONTRACTUAL ORIGIN OF THE INVENTION This invention was made with United States Government support under Contract No. DE-AC07-94ID13223, now Contract No. DE-AC07-99ID13727 awarded by the United States Department of Energy. The United States Government has certain rights in the invention.