바이오매스 전소 보일러 내의 바닥재 연료 특성 연구
An Experimental Study on the Characteristics of Bottom Ash in Biomass Boiler
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초록
This study focused on the characteristics of bottom ash produced in the combustion process in the biomass boiler furnace, measuring the possibility of re-combustion, and considering its availability as a new renewable energy alternative to coal. This study examined the availability of renewable energy as fuel and selected bottom ash, wood pellet, pre-treated torrefied wood pellet and AVRA coal with physical properties similar to those of bottom ash. From the results obtained by conducting experiments in thermo-gravimetric analysis, the reaction rate constant for each sample was derived by coates-redfern method. A drop tube furnace experiment compared the predicted generation results of nitrogen oxides and unburned carbon compounds in the combustion furnace. thermally treated biomass grindability index experiment determined the grindability between bottom ash and each sample.
Abstract
This study focused on the characteristics of bottom ash produced in the combustion process in the biomass boiler furnace, measuring the possibility of re-combustion, and considering its availability as a new renewable energy alternative to coal. This study examined the availability of renewable energy as fuel and selected bottom ash, wood pellet, pre-treated torrefied wood pellet and AVRA coal with physical properties similar to those of bottom ash. From the results obtained by conducting experiments in thermo-gravimetric analysis, the reaction rate constant for each sample was derived by coates-redfern method. A drop tube furnace experiment compared the predicted generation results of nitrogen oxides and unburned carbon compounds in the combustion furnace. thermally treated biomass grindability index experiment determined the grindability between bottom ash and each sample.
참고문헌 (25)
- "Renewable energy REC trend report"[URL]
- Ayhan Demirbas, "Potential applications of renewable energy sources, biomass combustion problems in boiler power systems and combustion related environmental issues", Prog Energy Combust Sci, 31(2), pp.171~192 (2005)
- Z. Maa, "A comprehensive slagging and fouling prediction tool for coal-fired boilers and its validation", application, 2007, pp.88(11-12), 1035~1043
- M. J. C. van der Stelt, "Biomass upgrading by torrefaction for the production of biofuels : A review", Biomass Bioenergy, 35(9), pp.3748~3762 (2011)
- Y. J. Lee, "Techno-Economical Method for the Removal of Alkali Metals from Agricultural Residue and Herbaceous Biomass and Its Effect on Slagging and Fouling Behavior", ACS Sustain Chem Eng, pp.13056~13065 (2018)
- A. Ohliger, "Torrefaction of beechwood : A parametric study including heat of reaction and grindability", Fuel, 104, pp.607~613 (2013)
- M. Manouchehrinejad, "Grindability of torrefied wood chips and wood pellets", Fuel Processing Technology, 182, pp.45~55 (2018)
- J. Lee, "Reduction of unburned carbon and NOx emissions from a pulverized-wood-pellet boiler retrofitted for fuel switching from coal", Energies, pp.5077~ (2020)
- "ASTM D3172 - 13, Standard Practice for Proximate Analysis of Coal and Coke", ASTM International, ~ (2013)
- "ASTM D5373-16, Standard Test Methods for Determination of Carbon, Hydrogen and Nitrogen in Analysis Samples of Coal and Carbon in Analysis Samples of Coal and Coke", ASTM International, ~ (2016)
- "ASTM D5865-19, Standard Test Method for Gross Calorific Value of Coal and Coke", ASTM International, ~ (2019)
- A. W. Coats, "Kinetic Parameter from Thermogravimetric Data", Nature, 201, pp.68~69 (1964)
- C. Ndibe, "Characterizing the grinding behavior of pre-treated biomass fuels for coal pulverizer application", 24th European Biomass Conference and Exhibition (2016)
- De Soete GG., , Fifteenth Symposium (international)on Combution, pp.1093~ (1975), The Combustion Institute
- D. K. Seo, "Study on Co-pyrolysis of Biomass", Coal using Thermo-gravimetric Analysis(TGA), 2009, pp.39, 209~214
- D. Vamvuka, "Devolatilization and combus-tion kinetics of low-rank coal blends from dynamic measurements", Ind Eng Chem Res, pp.4732~4740 (2003)
- H. Haykiri-Acma, "Controlling the excess heat from oxycombustion of coal by blending with biomass", Fuel Processing Technology, 91, pp.1569~1575 (2010)
- D. Carpenter, "Biomass feedstocks for renewable fuel production: a review of the impacts of feedstock and pretreatment on the yield and product distribution of fast pyrolysis bio-oils and vapors", Green Chem, pp.384~406 (2014)
- S. Yu, "Improving Energy Density and Grindability of Wood Pellets by Dry Torrefaction", Energy Fuels, 33, pp.8632~8639 (2019)
- S. Wang, "Influence of torrefaction on the characteristics and pyrolysis behavior of cellulose", Energy, 120, pp.864~871 (2017)
- Y. H. Li, "Combustion behavior of coal pellets blended with Miscanthus biochar", Energy, 163, pp.180~190 (2018)
- M. V. Gil, "Grindability and combustion behavior of coal and torrefied biomass blends", Bioresour Technol, 191, pp.205~212 (2015)
- 락와더르지, "바이오매스(우드펠릿) 혼소율 및 입자크기에 따른 연소 특성에 관한 연구", 대한기계학회논문집 B, 40(1), pp.31~37 (2016), 대한기계학회
- Ingwald Obernberger, "Decentralized Biomass Combustion : State of the Art and Future Development", Biomass Bioenergy, 14, pp.33~56 (1998)
- R. Kurose, "Pulverized coal combustion characteristics of high-fuel-ratio coals", Fuel, 83, pp.1777~1785 (2004)