Study on Predicting the Gasification Process of Acacia Wood on a Downdraft Gasifier: Using the Non-stoichiometric Equilibrium Model

Authors

  • Thanh Luan Nguyen Ho Chi Minh City University of Technology and Education, Vietnam https://orcid.org/0000-0002-0254-2730
  • An Quoc Hoang Ho Chi Minh City University of Technology and Education, Vietnam
  • Hung-Duong Hoang Danang University of Technology, Vietnam

Corressponding author's email:

luannt@hcmute.edu.vn

DOI:

https://doi.org/10.54644/jte.72A.2022.1119

Keywords:

Biomass, Gasification, Downdraft gasifier, Acacia wood, Thermodynamic equilibrium

Abstract

This study presents a prediction of acacia wood of Vietnam gasification in a downdraft gasifier based on the thermodynamic equilibrium model. Analytical solution for the mathematical model obtained by using an EES (Engineering Equation Solver) program. In the survey, moisture content per mole of biomass MC= 10 ¸ 30%, The ratio of the actual amount of oxygen used for gasification with the amount of oxygen for complete combustion of the biomass ER= 0.21 ¸ 0.4. Results indicated that the lower heating value of syngas decreases with increasing MC or ER. Thermal efficiency tends to increase with rising ER from 0.21 to 0.374, and it will decrease if ER continues to increase. The lower heating value of dry products from 4.51 to 6.51 MJ/nm3, the heat efficiency from 49.62 to 75.53%. The carbon conversion factor tends to increase with an increase as MC or ER. The influence of MC on the carbon conversion factor is insignificant. The content of CO2 and CH4 increased, the content of CO decreased with increased MC or ER. The composition of H2 increases as MC increases while the H2 component increases slightly and then decreases with increasing ER.

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Author Biographies

Thanh Luan Nguyen, Ho Chi Minh City University of Technology and Education, Vietnam

Thanh-Luan Nguyen received B.E. in 2012 from Da Nang University of Technology (Vietnam) and M.E. in 2018 from Ho Chi Minh City University of Technology (Vietnam). He has been a lecturer at the Faculty of Vehicle and Energy Engineering at Ho Chi Minh City University of Technology and Education since 2018. His research interests include drying techniques, heat transfer, and CFD.

An Quoc Hoang, Ho Chi Minh City University of Technology and Education, Vietnam

An-Quoc Hoang, (PhD. at DaNang University, Vietnam) is working as Associate professor and Dean of Research Management and International Relation Office at Ho Chi Minh City University of Technology and Education.  His research interests are Thermodynamic and Heat transfer and Renewable Energy. He has conducted many research projects on the applications of solar thermal energy and biomass gasification. He has published twenty-five research papers in various journals and conferences. He has also published three books in the field of thermal and refrigeration engineering.

Hung-Duong Hoang, Danang University of Technology, Vietnam

Dr. Hoang Duong Hung (PhD. at DaNang University, Vietnam) is working as Associate professor of Faculty of Heat and Refrigeration Engineering at University of Science and Technology of The University Of Danang. His research interests are Thermodynamic and Heat transfer and Renewable Energy. He has conducted many research projects on the applications of solar thermal energy and Boiler. He has published twenty research papers in various journals and conferences. He has also published two books in the field of thermal and Solar Energy.

References

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Published

28-10-2022

How to Cite

[1]
T. L. Nguyen, A. Q. Hoang, and D. H. Hoang, “Study on Predicting the Gasification Process of Acacia Wood on a Downdraft Gasifier: Using the Non-stoichiometric Equilibrium Model”, JTE, vol. 17, no. 5, pp. 10–18, Oct. 2022.

Issue

Vol. 17 No. 5 (2022)

Section

Research Article

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