Flowmeter for gas-entrained solids flow
Patent
·
OSTI ID:867415
- Evanston, IL
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 valved 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 konown distance of the capacitive densitometer below the control valve.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4930356
- OSTI ID:
- 867415
- Country of Publication:
- United States
- Language:
- English
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apparatus
below
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capacitive densitometer
connecting
control
control valve
conveyance
densitometer
density
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distance
duct
duct connecting
entrained
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entrained solid
entrained solids
feedrate
flow
flowmeter
fraction
gas
gas entrained
gas-entrained
gas-entrained solids
inferred
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local
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method
phi
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rho
sectional
solid
solid feed
solids
solids feed
solids feedrate
solids flow
source
valve
valve position
valved
velocity
vertical
vertical duct
volume
volume fraction
apparatus
below
capacitive
capacitive densitometer
connecting
control
control valve
conveyance
densitometer
density
determined
distance
duct
duct connecting
entrained
entrained flow
entrained solid
entrained solids
feedrate
flow
flowmeter
fraction
gas
gas entrained
gas-entrained
gas-entrained solids
inferred
konown
local
location
measurement
method
phi
positioned
rho
sectional
solid
solid feed
solids
solids feed
solids feedrate
solids flow
source
valve
valve position
valved
velocity
vertical
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volume
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