ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Entropy criterion of random states for granular material in a mixing process
Stanisław Masiuk, Rafał M. Rakoczy, and Marian Kordas
Institute of Chemical Engineering and Environmental Process Protection, Szczecin University of Technology, al. Piastów 42, 71-065 Szczecin, Poland
Received: 31 March 2007 Revised: 10 September 2007 Accepted: 8 October 2007
Abstract: Mathematical assessment of homogenisation progress of the granular material mixing process is presented. The mixing process
was realised using a vessel in the form of two partly penetrating horizontal cylinders equipped with two multi-ribbon agitators.
The experimental system consisted of three sets of particles of different colour. Random states of the mixed granular material
were characterised by the sampling procedure at different moments of the mixing process. Informational entropy as well as
the flow of quantum of information were applied to describe the progress of the homogenisation process. Analysis of this process
was based on experimental investigations in the form of informational entropy patterns and described by means of the average
informational entropy or the quantum of information.
Keywords: granular material - multi-ribbon agitator - informational characteristics
Full paper is available at www.springerlink.com.
Chemical Papers 62 (3) 247–254 (2008)