Flowmeter for gas-entrained solids flow
An apparatus and method for the measurement of solids feedrate in a gas-entrained solids flow conveyance system. The apparatus and method of the present invention include a vertical duct connecting a source of solids to the gas-entrained flow conveyance system, a control valve positioned in the vertical duct, and a capacitive densitometer positioned along the duct at a location a known distance below the control valve so that the solid feedrate, Q, of the gas entrained flow can be determined by Q = S{rho}{phi} v{sub S} where S is the cross sectional area of the duct, {rho} is the density of the solid, {phi} is the solid volume fraction determined by the capacitive densitometer, and v{sub S} is the local solid velocity which can be inferred from the known distance of the capacitive densitometer below the control valve.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- Dept. of Energy
- Patent Number(s):
- PATENTS-US-A7341004
- Application Number:
- ON: DE90014572; PPN: US 7-341004
- OSTI ID:
- 7068099
- Country of Publication:
- United States
- Language:
- English
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