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System for measuring multiphase flow using multiple pressure differentials

United States Patent

January 7, 2003
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
An improved method and system for measuring a multi-phase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multi-phase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The system for determining the mass flow of the high void fraction fluid flow and the gas flow includes taking into account a pressure drop experienced by the gas phase due to work performed by the gas phase in accelerating the liquid phase.
Fincke; James R. (Idaho Falls, ID)
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
09/ 400,946
September 22, 1999
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. DE-AC07-94ID13223 between the United States Department of Energy and Lockheed Martin Idaho Technologies Company.