The measurement of void fraction in beds of granulated iron ore sinter feed.

Abstract

[..] The permeability of a packed bed is a complex function of the effective mean diameter of the granules and the void fraction of the bed. Theis paper describes a technique for measuring the void fraction of a bed of granulated sinter feed by filling the voids, under vacuum with kerosene. Kerosene, being immiscible with water, does not penetrate the moist granules. [..] all the internal porosity of granules is filled with water