Flow monitoring using flow control device
US7054764B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2004 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D29/001
- WIPO fieldMeasurement
- WIPO sectorInstruments
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 Cv 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 Cv, 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.