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Title: Flowmeter for gas-entrained solids flow

Abstract

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.

Inventors:
 [1]
  1. (Evanston, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
867415
Patent Number(s):
4930356
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
flowmeter; gas-entrained; solids; flow; apparatus; method; measurement; feedrate; conveyance; vertical; duct; connecting; source; control; valve; positioned; capacitive; densitometer; location; distance; below; valved; solid; gas; entrained; determined; rho; phi; sectional; density; volume; fraction; local; velocity; inferred; konown; volume fraction; control valve; solids flow; vertical duct; entrained flow; gas entrained; capacitive densitometer; valve position; solid feed; solids feedrate; entrained solid; gas-entrained solids; entrained solids; solids feed; duct connecting; /73/324/

Citation Formats

Porges, Karl G. Flowmeter for gas-entrained solids flow. United States: N. p., 1990. Web.
Porges, Karl G. Flowmeter for gas-entrained solids flow. United States.
Porges, Karl G. Mon . "Flowmeter for gas-entrained solids flow". United States. https://www.osti.gov/servlets/purl/867415.
@article{osti_867415,
title = {Flowmeter for gas-entrained solids flow},
author = {Porges, Karl G.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

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