Energy and exergy analysis of thermo-chemical gasification of sawdust using thermodynamic equilibrium model

Author

Anoop, P. ; Rupesh, S. ; Muraleedharan, C. ; Arun, P.

Author_Institution

Dept. of Mech. Eng., Nat. Inst. Of Technol. Calicut, Calicut, India

fYear

2015

fDate

19-21 Feb. 2015

Firstpage

1

Lastpage

5

Abstract

Biomass, the largely available renewable energy source, will be a future viable solution for world´s energy crisis. A stoichiometric thermodynamic equilibrium model of air-steam gasification of saw dust in fluidized bed is developed in the present work. The model considers both char conversion and tar formation and predicts the product gas composition, and energy and exergy efficiencies at different operating conditions using MATLAB software. For a steam to biomass ratio of unity, maximum mole fraction of hydrogen is found to be 34.68% at a temperature of 1500 K and equivalence ratio of 0.15, with an exergy efficiency of 75.44%.

Keywords

chemical energy conversion; dust; exergy; fluidised beds; fuel gasification; stoichiometry; MATLAB software; air-steam gasification; biomass; char conversion; efficiency 75.44 percent; energy analysis; exergy analysis; fluidized bed; maximum mole fraction; product gas composition; renewable energy source; sawdust; stoichiometric thermodynamic equilibrium model; tar formation; temperature 1500 K; thermochemical gasification; Decision support systems; biomass gasification; energy; equilibrium model; exergy;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Informatics, Communication and Energy Systems (SPICES), 2015 IEEE International Conference on

Conference_Location

Kozhikode

Type

conf

DOI

10.1109/SPICES.2015.7091505

Filename

7091505