Numerical and experimental methods in investigating measures for achieving low pollutant combustion in the residential appliances (CROSBI ID 310032)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Horvat, Ivan ; Dović, Damir ; Filipović, Petar
engleski
Numerical and experimental methods in investigating measures for achieving low pollutant combustion in the residential appliances
In this work, the effects of proposed measures for improving environmental footprint of woody and non- woody biomass combustion in residential appliances, comprising partial insulation of combustion chamber and inclusion of combustion intensifier are numerically and experimentally evaluated. In the numerical part, a simplified modeling approach for wood pellets, based on Finite-Rate and Eddy- Dissipation model, is presented and the obtained combustion reaction maps are extensively discussed. The accompanying experiments with wood and agropellets are performed in a multi-fuel boiler equipped with rotary pellet burner. It is found that significant reductions in pollutant emissions are obtained (CO – 31 to 78%, PM – 28 to 56 mg/Nm3 at standardized oxygen content). The results also show that by combining both measures, CO emissions below 1000 mg/Nm3 at the standardized oxygen content (limitation for Class 4 according to EN 303–5:2021), without a significant drop in combustion efficiency (approx. 2%), can be expected for agropellets. The optimal combustion conditions can be achieved with lower excess air ratio, whereby a slight reduction in NOx emissions can be accomplished.
pollutant emission reduction ; wood pellets ; agropellets ; combustion intensifier ; combustion chamber chamotte insulation
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Podaci o izdanju
44 (2)
2022.
4614-4629
objavljeno
1556-7036
1556-7230
10.1080/15567036.2022.2078906