THERMAL SCIENCE

International Scientific Journal

Dillibabu Venugopal

,

Lakshmanan Thangavelu

,

Natarajan Elumalai

ENERGY, EXERGY AND SUSTAINABILITY ANALYSIS OF RICE HUSK AIR GASIFICATION PROCESS

ABSTRACT
Biomass is one of the renewable energy sources to produce power with zero carbon dioxide emission, biomass gasification process considered as a sustainable technology for energy conversion. This paper deals with rice husk air gasification simulation using non- stoichiometric equilibrium model based on Gibbs free energy minimisation. FACTSAGE 6.3 software used to calculate gas composition at temperature range 600-1000°C and equivalence ratio (Ф) range 0.15 - 0.55. Maximum gas mixture exergy of 9551.7 kJ per kg of rice husk is obtained at Ф=0.25 and 725°C. Chemical exergy contributes 89.90 - 94.85% of total gas mixture exergy, cold gas efficiency and exergetic efficiency varies in the range of 25.19 - 70.71% and 23.11 - 62.24% respectively in operating condition. Rice husk gasification process analysed by evaluating, sustainability index (SI) and environmental destruction factor (Ced).
KEYWORDS
Rice husk, gasification, simulation, FACTSAGE, еxergy analysis, sustainability
PAPER SUBMITTED: 2017-06-13
PAPER REVISED: 2018-01-14
PAPER ACCEPTED: 2018-01-30
PUBLISHED ONLINE: 2018-03-04
DOI REFERENCE: https://doi.org/10.2298/TSCI170613068V
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 2, PAGES [549 - 560]
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Energy, exergy and sustainability analysis of rice husk air gasification process

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence