RT Journal Article
T1 CFD simulation of an internally cooled biomass fixed-bed combustion plant
A1 Alvarez Bermudez, César
A1 Chapela Lopez, Sergio
A1 Gonzalez Varela, Luís
A1 Gómez Rodríguez, Miguel Ángel
K1 1203.26 Simulación
K1 2204.04 Mecánica de Fluidos
K1 3313.10 Material de Calefacción
AB 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.
PB Resources
SN 20799276
YR 2021
FD 2021-07-23
LK http://hdl.handle.net/11093/2411
UL http://hdl.handle.net/11093/2411
LA eng
NO Resources, 10(8): 77 (2021)
NO Agencia Estatal de Investigación | Ref. RTI2018-100765-B-I00
DS Investigo
RD 08-dic-2023