Table of Contents
ISRN Mechanical Engineering
Volume 2012 (2012), Article ID 207464, 10 pages
http://dx.doi.org/10.5402/2012/207464
Research Article

Applicability of Scaling Approach for Analysis of Pyrolysis and Gasification of Porous Structures Composed of Solid Fuel Particles

Division of Energy and Furnace Technology, ITM/MSE, KTH, Brinellvägen 23, 10044 Stockholm, Sweden

Received 29 December 2011; Accepted 7 February 2012

Academic Editors: A. Postelnicu and A. Z. Sahin

Copyright © 2012 Aliaksandr Alevanau et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Experimental research on the pyrolysis and gasification of randomly packed straw pellets was conducted with an emphasis on the reactive properties of the shrinking porous structure of the pellets. The apparent kinetics of such pyrolysis was approximated by the random pore, grain, and volumetric models. The best approximation results were obtained with the grain and random pore models. The self-organized oscillations of the pellet conversion rate during pyrolysis were observed. Two complementary explanations of the phenomenon are proposed.