A relation for the void fraction of randomly packed particle beds

A. C. Hoffmann*, H. J. Finkers

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    70 Citations (Scopus)

    Abstract

    The void fractions of loosely packed and tapped beds of particles of continuous size distributions are correlated by means of a proposed new semi-empirical relation. In this relation four parameters describing the following particle properties are included: (i) mean particle size, (ii) spread of the particle size distribution, (iii) particle density and (iv) particle shape. The adjustable constants in the relation were optimised using experimental void fractions and particle characteristics for a wide variety of powders mainly gathered from the published literature. The optimised relation correlated the loosely packed and tapped bed void fractions with correlation coefficients of 0.955 and 0.973, respectively, the correlation thus removing virtually all the scatter in the original data. A discussion is provided.

    Original languageEnglish
    Pages (from-to)197-203
    Number of pages7
    JournalPowder Technology
    Volume82
    Issue number2
    DOIs
    Publication statusPublished - Feb-1995

    Keywords

    • VOIDAGE
    • PACKED BEDS
    • SIZE DISTRIBUTION
    • SHAPE
    • TENSILE-STRENGTH
    • PACKING
    • POWDERS

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