sAnalytical and Experimental Study of the Air Recirculation in a Loading Porous Tube with a Combined Bypass Chamber

The present paper considers the stream of air entrained by a stream of free-falling material in a vertical porous loading tube contained in a tube of large radius (bypass chamber). The ascending air in the bypass chamber is recirculated through both holes uniformly perforated in the chute walls and...

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Published inJournal of engineering physics and thermophysics Vol. 90; no. 2; pp. 318 - 328
Main Authors Averkova, O. A., Kryukov, I. V., Logachev, I. N., Logachev, K. I.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.03.2017
Subjects
Air recirculation
Bypasses
Chambers
Classical Mechanics
Complex Systems
Ejection
Engineering
Engineering Thermodynamics
Entrainment
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Streams
Thermodynamics
Tubes
Walls
air ejection
free-flowing materials
recirculation
aspiration
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Summary:The present paper considers the stream of air entrained by a stream of free-falling material in a vertical porous loading tube contained in a tube of large radius (bypass chamber). The ascending air in the bypass chamber is recirculated through both holes uniformly perforated in the chute walls and end holes at the ends of the bypass chamber. The parameters providing the greatest decrease in the volume of ejected air due to recirculation have been determined by solving the differential equations of motion of ejected air (entrained by the stream of free-falling material) and of recirculated air. The effect of decrease in the volume of ejected air due to the air recirculation in the "loading tube–bypass chamber" system has been confirmed experimentally.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-017-1570-5