Numerical modeling of combined partial oxidation and gasification zones in a downdraft gasifier fueled by almond shell

Author

Masmoudi, Mohamed Ali ; Halouani, Kamel ; Sahraoui, Mohamed

Author_Institution

ENIS-IPEIS, Univ. of Sfax, Sfax, Tunisia

fYear

2014

fDate

25-27 March 2014

Firstpage

1

Lastpage

6

Abstract

A two dimensional model is developed for the partial oxidation and reduction zones of a downdraft gasifier. The model is based on the conservation laws of mass, energy and momentum coupled to the chemical kinetics. The predicted results are compared with experimental data obtained from a pilot scale downdraft gasifier fueled by almond shell and a reasonable agreement is found The model is used to investigate the distribution of the temperatures and gases concentrations inside the partial oxidation and reduction zones. Effect of the main operating parameters on gases species yield could be investigated using the elaborated model.

Keywords

energy conservation; fuel gasification; oxidation; reaction kinetics; almond shell; chemical kinetics; combined partial oxidation; downdraft gasifier; energy conservation; gasification zones; mass conservation; momentum conservation; reduction zones; two dimensional model; Biomass; Inductors; Kinetic theory; Mathematical model; Oxidation; Solids; Temperature measurement; biomass; downdraft gasifier; heat and mass transfer; numerical modeling; packed bed;

fLanguage

English

Publisher

ieee

Conference_Titel

Renewable Energy Congress (IREC), 2014 5th International

Conference_Location

Hammamet

Print_ISBN

978-1-4799-2196-6

Type

conf

DOI

10.1109/IREC.2014.6826934

Filename

6826934