Flow monitoring using flow control device
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United States of America Patent
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May 30, 2006
Grant Date -
May 19, 2005
app pub date -
Sep 13, 2004
filing date -
Sep 29, 2003
priority date (Note) -
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Abstract
A method for determining the flow rate of a fluid, having a liquid fraction and a gas fraction, having the steps of: measuring the pressure and temperature of the fluid at a flow control device through which said cyrogenic fluid passes; inputting the measured pressure and C.sub.v into an algorithm; and performing a single or multi-step iteration to determine a fluid mass flow rate of the fluid through the flow control device using the algorithm that relates the mass flow rate of the fluid to the C.sub.v, and mass densities of the liquid fraction and the gas fraction of the fluid which are a function of the measured pressure, and temperature. A system is also provided.
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