TY - JOUR
TI - Energy, exergy and sustainability analysis of rice husk air gasification process
AU - Venugopal Dillibabu
AU - Thangavelu Lakshmanan
AU - Elumalai Natarajan
JN - Thermal Science
PY - 2019
VL - 23
IS - 2
SP - 549
EP - 560
PT - Article
AB - 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).