On the Thermo-Chemical Equilibrium Modelling of a Biomass Gasifying Process

  • Gina Georgiana Rolea Dunarea de Jos University of Galati
  • Florin Popescu Dunarea de Jos University of Galati
  • Gabriel Murariu Dunarea de Jos University of Galati
Keywords: mathematical model, thermodynamic equilibrium

Abstract

This article discusses a mathematical model for the thermochemical processes in a downdraft biomass gasifier. The model combines the chemical equilibrium and the thermodynamic equilibrium of the global reaction, predicting the final composition of the producer gas as well as its reaction temperature. Once the composition of the producer gas is obtained, a range of parameters can be derived, such as the cold gas efficiency of the gasifier, the amount of dissociated water in the process and the heating value and engine fuel quality of the gas. The model has been validated experimentally. This work includes a parametric study of the influence of the gasifying relative fuel/air ratio and the moisture content of the biomass on the characteristics of the process and the producer gas composition. The model helps to predict the behaviour of different biomass types and is a useful tool for optimizing the design and operation of downdraft biomass gasifiers.

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Published
2010-11-12
How to Cite
1.
Rolea G, Popescu F, Murariu G. On the Thermo-Chemical Equilibrium Modelling of a Biomass Gasifying Process. Annals of ”Dunarea de Jos” University of Galati, Fascicle V, Technologies in machine building [Internet]. 12Nov.2010 [cited 28Mar.2024];28(2):133-6. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/tmb/article/view/1946
Section
Articles