Next Article in Journal / Special Issue
Greenhouse Gas Emission Assessment of Simulated Wastewater Biorefinery
Previous Article in Journal
Development of a Comprehensive Conceptual Framework for Biogas Technology Adoption in South Africa
 
 
Article

CFD Simulation of an Internally Cooled Biomass Fixed-Bed Combustion Plant

Grupo de Tecnología Energética (GTE), CINTECX, Universidade de Vigo, 36310 Vigo, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Michela Costa and Daniele Piazzullo
Resources 2021, 10(8), 77; https://doi.org/10.3390/resources10080077
Received: 18 June 2021 / Revised: 14 July 2021 / Accepted: 20 July 2021 / Published: 23 July 2021
The reduction of bed temperature in fixed-bed biomass combustion is an effective measure to lower pollutant emissions. Air staging and bed cooling solutions are active strategies to decrease the fuel bed temperature. This work presents a CFD study of a biomass fixed-bed combustion plant that is equipped with an internal cooling bed system. Eight different cases are calculated to analyze the effect of the total airflow, air staging ratios and bed cooling system on biomass combustion. The findings are validated against experimental data from the literature. The results show good accordance between the numerical results and the experimental data. The primary airflow rate has the biggest influence on the bed’s maximum temperatures. The internal bed cooling system is able to achieve an average bed temperature reduction of 21%, slowing the biomass thermal conversion processes. Bed cooling techniques can be combined with air staging and primary airflow reduction to reduce bed temperatures in order to reduce pollutant emissions and other undesirable phenomena, such as fouling or slagging. View Full-Text
Keywords: biomass combustion; bed cooling; air staging; CFD; Eulerian biomass combustion; bed cooling; air staging; CFD; Eulerian
Show Figures

Figure 1

MDPI and ACS Style

Álvarez-Bermúdez, C.; Chapela, S.; Varela, L.G.; Gómez, M.Á. CFD Simulation of an Internally Cooled Biomass Fixed-Bed Combustion Plant. Resources 2021, 10, 77. https://doi.org/10.3390/resources10080077

AMA Style

Álvarez-Bermúdez C, Chapela S, Varela LG, Gómez MÁ. CFD Simulation of an Internally Cooled Biomass Fixed-Bed Combustion Plant. Resources. 2021; 10(8):77. https://doi.org/10.3390/resources10080077

Chicago/Turabian Style

Álvarez-Bermúdez, César, Sergio Chapela, Luis G. Varela, and Miguel Ángel Gómez. 2021. "CFD Simulation of an Internally Cooled Biomass Fixed-Bed Combustion Plant" Resources 10, no. 8: 77. https://doi.org/10.3390/resources10080077

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop