Res. Agr. Eng., 2017, 63(1):16-22 | DOI: 10.17221/75/2015-RAE
Heating and emission properties of waste biomass in burner furnaceOriginal Paper
- Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic
Utilization of waste suitable as a fuel for small combustion devices is a very important issue. Therefore, this article analyzes selected waste materials from agriculture and maintenance of municipal vegetation. The pellet samples from composting had very high ash content (22.39 and 36.85% wt.), which resulted in low values of net calorific value (12.66 and 10.24 MJ/kg), but also in bad properties of these samples in high concentration of harmful emission. Other problematic fuel samples were pellets from maintenance of city vegetation and reed canary grass, for which high concentration of carbon monoxide was measured during combustion process. The device used for these experiments is based on burner furnace. Combustion conditions could be improved by more uniform fuel supply to the burner and better control of combustion air. Boiler with advanced combustion control can reach better results during combustion process. Results in this article are valid for tested materials combusted in simple pellet burner with limited ability to control combustion process.
Keywords: pellets; wheat straw; compost; elemental analysis; stoichiometry; carbon monoxide
Published: March 31, 2017 Show citation
References
- Díaz-Ramírez M., Sebastián F., Royo J., Rezeau A. (2014): Influencing factors on NOX emission level during grate conversion of three pelletized energy crops. Applied Energy, 115: 360-373.
Go to original source... - Eskilsson D., Rönnbäck M., Samuelsson J., Tullin C. (2004): Optimisation of efficiency and emissions in pellet burners. Biomass and Bioenergy, 27: 541-546. Go to original source...
- Johansson LS., 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...
- 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...
- 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...
- Malaták J., Bradna J. (2014): Use of waste material mixtures for energy purposes in small combustion devices. Research in Agricultural Engineering, 60: 50-59. Go to original source...
- Müller M., Horníèková ©., Hrabì P., Maøík J. (2015): Analysis of physical, mechanical and chemical properties of seeds and kernels of Jatropha curcas. Research in Agricultural Engineering 61: 99-105. Go to original source...
- Obernbergera I., Theka G. (2004): Physical characterisation and chemical composition of densified biomass fuels with regard to their combustion behaviour. Biomass and Bioenergy, 27: 653-669. Go to original source...
- 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...
- Strehler A. (2000): Technologies of wood combustion. Ecological Engineering, 16: S25-S40. Go to original source...
- 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...
- Wei W., Zhang W., Hu D., Ou L., Tong Y., Shen G., Shen H., Wang X. (2012): Emissions of carbon monoxide and carbon dioxide from uncompressed and pelletized biomass fuel burning in typical household stoves in China. Atmospheric Environment 56: 136 - 142. Go to original source...
- ®andeckis A., Kirsanovs V., Dzikeviès M., Blumberga D. (2013): Experimental study on the optimisation of staged air supply in the retort pellet burner. Agronomy Research, 11: 381-390.
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