Počet záznamů: 1

Strategy for Predicting Effective Transport Properties of Complex Porous Structures

  1. 1.
    0357570 - UCHP-M 2011 RIV GB eng J - Článek v odborném periodiku
    Salejová, G. - Grof, Z. - Šolcová, Olga - Schneider, Petr - Kosek, J.
    Strategy for Predicting Effective Transport Properties of Complex Porous Structures.
    Computers and Chemical Engineering. Roč. 35, č. 2 (2011), s. 200-211 ISSN 0098-1354
    Výzkumný záměr: CEZ:AV0Z40720504
    Klíčová slova: porous media * pore space reconstruction * effective diffusivity
    Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství
    Impakt faktor: 2.320, rok: 2011

    Here we demonstrate the reconstruction of porous alumina catalyst carrier with bimodal pore size distribution. Multi-scale concept is employed for the computation of effective diffusivity and permeability of reconstructed porous media and calculated effective transport properties are compared with transport parameters experimentally determined in Graham diffusion and simple permeation cell. The limitations of current state-of-the-art reconstruction techniques for porous media with broad pore size distribution are discussed. We show that the contribution of nano-pores towards the total diffusion flux is significant and cannot be neglected, but it is reasonable to neglect the contribution of nano-pores towards the sample permeability.
    Trvalý link: http://hdl.handle.net/11104/0195815