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A Numerical Model of Biomass Combustion Physical and Chemical Processes

Authors :
Ion V. Ion
Florin Popescu
Razvan Mahu
Eugen Rusu
Source :
Energies, Vol 14, Iss 7, p 1978 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

Identifying a modeling procedure of biomass thermal decomposition that is not only simple enough to implement and use, and computationally efficient, but also sufficiently accurate for engineering design activities, and with a spectrum of applications as broad as possible is a very difficult task. The authors propose a procedure which consists of two main stages: (a) the static modeling phase with the purpose of generating the algorithm (macro functions) that supplies a Computational Fluid Dynamics (CFD) model with specific input data (source/sink terms and local material properties) and (b) the dynamic modeling phase, where the CFD model is bi-directionally coupled to the external biomass decomposition model in the form of a User-Defined Function (UDF). The modeling approach was successfully validated against data obtained from single particle decomposition experiments, demonstrating its applicability even to large biomass particles, under high heating rates and combusting conditions.

Details

Language :
English
ISSN :
19961073
Volume :
14
Issue :
7
Database :
Directory of Open Access Journals
Journal :
Energies
Publication Type :
Academic Journal
Accession number :
edsdoj.5a774ac1d34457877255ad43eb46c5
Document Type :
article
Full Text :
https://doi.org/10.3390/en14071978