Computational Fluid Dynamics Simulation of Horizontal Biomass Gasifier

V. K. Aharwal¹ , R.N. Singh²

1. School of Energy and Environmental Studies, Devi Ahilya Vishwavidyalaya, Indore, India.
2. School of Energy and Environmental Studies, Devi Ahilya Vishwavidyalaya, Indore, India.

Correspondence should be addressed to: rnsingh.seema@gmail.com.

Section:Research Paper, Product Type: Isroset-Journal
Vol.4 , Issue.2 , pp.1-7, Feb-2018

CrossRef-DOI:   https://doi.org/10.26438/ijsrms/v4i2.17

Online published on Feb 28, 2018

Copyright © V. K. Aharwal, R.N. Singh . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Computational Fluid Dynamics (CFD) simulation of horizontal biomass gasification process has been carried out. The gas-solid interaction, thermal-flow behavior and biomass gasification process inside a horizontal gasifier were studied using the software named as commercial CFD solver ANSYS CFX. The influence of gasification air velocity, temperature inside the reactor, species mass fractions of biomass, turbulence eddy dissipation and eddy viscosity on performance of horizontal gasifier were examined. All phases are described using an Eulerian approach to model the exchange of mass, energy and momentum. The analysis includes two cases, the first case deals with flow pattern and the influence of geometry whereas the second case deals with reaction modeling in a steady-state thermal analysis. It is found that superficial gas and mass fraction of biomass has a strong influence on the outlet temperature and gas velocity. Producer gas temperature and H2 and CO distributions

Key-Words / Index Term :
Aspen plus CFD CFX, turbulence kinetic energy, turbulence eddy dissipation, biomass, horizontal gasifier, kinetic reaction.

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