1. Department of Mechanics and Mining Engineering, EUP de Linares, Universidad de Jaén, C/. Alfonso X el Sabio, 28, 23700 Linares (Jaén), Spain, Department of Physical and Analytical Chemistry, EUP de Linares, Universidad de Jaén, C/. Alfonso X el Sabio, 28, 23700 Linares (Jaén), Spain, Department of Agricultural Engineering, ETSIAM, Universidad de Córdoba, Avda. Menéndez Pidal s/n, 14080 Córdoba, Spain, Institute of Chemistry, Karl-Franzens-Universität Graz, Heinrichstrasse 28, A-8010 Graz, Austria