Title:
Investigation of a Mathematical-Physical Model for Biomass Densification Depending on Geometry of Pressing Chamber
Author(s):
Matúš, M., Kováčová, M., Križan, P., Beniak, J., ooš, L.
Document(s):
Paper
Poster
Abstract:
The main objective of research in this work is to design a mathematical-physical model of biomass densification taking into account the geometry of the pressing chamber, which allows the direct optimization of the parameters of densification in order to obtain high quality production at minimum energy demand of the production process. The exact and comprehensive mathematical description of the densification process of the biomass, namely spruce sawdust, was obtained by designing and evaluating systematically implemented experiments. An innovative approach to research methodology consists of a logical sequence of systematic steps: (i) Experimental research of compressibility of spruce sawdust with optimum moisture content. The results are defined compressibility curves of the investigated raw material for different fraction sizes. (ii) Defining the mathematical model of the bulk transformation module for spruce sawdust by using mathematical methods, and quantifying the individual model constants for the studied fraction sizes. The bulk transformation module is the basic characteristic of a particulate matter. (iii) Design of the mathematical-physical model of compressibility equation for spruce sawdust using mathematical methods. (iv) Defining the mathematical models of pressure conditions during compaction for different geometry of the pressing chamber using mathematical methods. (v) Design of mathematical-physical models of spruce sawdust densification for different geometry of the pressing chamber, based on the designed model of the compressibility equation and the models of pressure conditions. Application of these models into the practice allows to manage and optimize the whole densification process of wood into the form of solid biofuel. These models are especially important primarily for their possibility to optimize directly the particular design parameters of the pressing chamber already at the time of its construction design.
Keywords:
biomass, solid biofuel, densification, compressibility, pressing chamber
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Production and supply of solid biofuels
Event:
26th European Biomass Conference and Exhibition
Session:
2DV.2.6
Pages:
874 - 881
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2DV.2.6
Price:
FREE
