Res. Agr. Eng., 2016, 62(1):1-8 | DOI: 10.17221/36/2014-RAE

Flue gases thermal emission concentration during waste biomass combustion in small combustion device with manual fuel supplyOriginal Paper

J. Bradna, J. Malaȇk
Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic

he aim of the experiments is determination of emission concentrations in the observed substances produced in exhaust gas during combustion of various mixtures of waste biomass compacted samples. The samples were pressed into the form of briquettes with a diameter of 65 mm. During the actual measurements the following parameters were monitored: emissions of carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx) and flue gas temperature depending on the excess air coefficient. Measurements of emission parameters were carried out in storage heater fireplace with nominal heat output of 8 kW. During the measurements high concentrations of carbon monoxide in excess of the value of 5,000 mg/m3 were determined, especially in the samples of waste from corn cleaning and wheat straw. The results show an excess air factor optimum adjustment on value 3, where the combustion device achieves optimum parameters of CO and NOx emissions. The results of emission measurements confirmed that the excess air is a very important operating variable which affects both monitored emissions concentrations and the combustion temperature in the fireplace.

Keywords: wheat straw; wood chips; molasses; beet chips; sludge; carbon and nitrogen oxides; flue gas temperature

Published: March 31, 2016  Show citation

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Bradna J, Mala»ák J. Flue gases thermal emission concentration during waste biomass combustion in small combustion device with manual fuel supply. Res. Agr. Eng. 2016;62(1):1-8. doi: 10.17221/36/2014-RAE.
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    References

    1. Eskilsson D. (2004): Optimization of efficiency and emissions in pellet burners. Biomass and Bioenergy, 27: 541-546. Go to original source...
    2. Fiedler F., Persson T. (2009): Carbon monoxide emissions of combined pellet and solar heating systems. Applied Energy, 86: 135-143. Go to original source...
    3. Friberg R., Blasiak W. (2002): Measurements of mass flux and stoichiometry of conversion gas from three different wood fuels as function of volume flux of primary air in packed bed combustion. Biomass and Bioenergy, 23: 189-208. Go to original source...
    4. Gürdíl G., Mala»ák J., Selví K., Pinar Y. (2009): Biomass utilization for thermal energy. AMA, Agricultural Mechanization in Asia, Africa and Latin America, 40: 80-85.
    5. Hájek D., Mala»ák J., Hájek P. (2013): Combustion of selected biofuels types in furnace turner. Scientia Agriculturae Bohemica, 44: 23-31. Go to original source...
    6. Houshfar E., Skreiberg Ø., Løvås T., Todoroviæ D., Sørum L (2011): Effect of excess air ratio and temperature on NOx emission from grate combustion of biomass in the staged air combustion scenario. Energy and Fuels, 25: 4643- 4654. Go to original source...
    7. Johansson L.S., Tullin C., Leckner B., Sjövall P. (2003): Particle emissions from biomass combustion in small combustors. Biomass and Bioenergy, 25: 435- 446. Go to original source...
    8. Liu H., Chaney J., Li J., Sun C. (2013): Control of NOx emissions of a domestic/small-scale biomass pellet boiler by air staging. Fuel, 103: 792-798. Go to original source...
    9. Malaȇk J., Passian L. (2011): Heat-emission analysis of small combustion equipment for biomass. Res. Agr. Eng., 57: 37-50. Go to original source...
    10. McBurney B., 1995. A Case Study of a Large Scale Wood Waste Power Generating Plant. Biologue - Regional Biomass Energy Program Report. The Official Publication of the National BioEnergy Industries Association, 13: 5- 11.
    11. Olsson M., Kjallstrand J. (2004): Emissions from burning of softwood pellets. Biomass-and-Bioenergy, 27: 607-611. Go to original source...
    12. Olsson M., Kjallstrand J., Petersson G. (2003): Specific chimney emissions and biofuel characteristics of softwood pellets for residential heating in Sweden. Biomass and Bioenergy, 24: 51-57. Go to original source...
    13. Vierle O., Launhardt T., Strehler A., Dumler-Gradl R., Thoma H., Schreiner M. (1999): Investigation of organic pollutants from house heating systems using biogenic fuels and correlations with other exhaust gas components. Analytica Chimica Acta, 393: 131-140. Go to original source...

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