Liquid transport on a nylon surface moving between liquids through an air-filled chamber

Authors

  • Leland C. Dickey,

    Corresponding author
    1. Eastern Regional Research Center, Agricultural Research Service, US. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, PA 19038-8598, U.S.A
    • Eastern Regional Research Center, Agricultural Research Service, US. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, PA 19038-8598, U.S.A
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  • Michael F. Dallmer,

    1. Eastern Regional Research Center, Agricultural Research Service, US. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, PA 19038-8598, U.S.A
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  • Thomas Boswell

    1. Eastern Regional Research Center, Agricultural Research Service, US. Department of Agriculture, 600 E. Mermaid Lane, Wyndmoor, PA 19038-8598, U.S.A
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Abstract

The flow rate of liquid carried on a nylon strand moving from a liquid filled space, through an air filled space, to another liquid filled space was determined from measurements of electrical conductance of the separated liquids. The measurements are consistent with the transmission of a liquid layer on the nylon surface of constant thickness, independent of surface velocity. The layer thickness is low enough that an adsorptive strand can carry adsorbate from a solution at a practical rate. The effective concentration of solution taken from an adsorption chamber by a saturated adsorbent strand is estimated to be at least 5.8 (λ/S) times the chamber concentration, where λ is the chamber length and S the line speed.

Abstract

Le débit de liquide se déplaçant sur une fibre de nylon depuis un espace rempli de liquide vers un espace rempli d'un autre liquide, à travers un espace rempli d'air, a été déterminé d'après les mesures de conductance électriques des liq-uides séparés. Les mesures concordent avec la transmission d'une couche liquide à la surface du nylon d'épaisseur con-stante, indépendemment de la vitesse de surface. L'épaisseur de la couche est assez mince pour qu'une fibre adsorbante puisse transporter de l'adsorbat depuis une solution à un taux acceptable. On estime que la concentration effective de solution extraite d'une chambre d'adsorption par une fibre adsorbante saturée est d'au moins 5.8 (λ/S) fois la concentration de la chambre, où λ est la longueur de la chambre et S la vitesse continue.

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