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Tytuł artykułu

Comparison of CO and NOx concentrations from a 20 kW boiler for periodic and constant wood pellet supply

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Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The impact of the fuel feeding mode (continuous or periodic with various stand-by/operation time ratios) on carbon monoxide (CO) and nitrogen oxides (NO, NOx) concentration values in the flue gas was analyzed for coniferous wood pellet firing. Experiments were performed using a 20 kW water boiler equipped with an under-fed (retort) wood pellet furnace located in a full scale heat station simulating real-life conditions. Impact of oxygen concentration and temperature in the combustion chamber on the concentrations of carbon monoxide and nitrogen oxide have been examined. It was concluded that the commonly used periodic fuel supply does not necessarily cause an important increase of the concentrations of carbon monoxide compared to those in the continuous fuel feeding mode. Continuous fuel supply can even imply higher concentrations of carbon monoxide when fuel and air streams are not chosen properly.
Rocznik
Strony
95--107
Opis fizyczny
Bibliogr. 17 poz., tab., rys.
Twórcy
autor
  • Poznan University of Technology, Institute of Environmental Engineering, Division of Heating, Air Conditioning and Air Protection, Piotrowo 3A, 60-965 Poznań, Poland,
Bibliografia
  • [1] KNAUS H., RICHTER S., UNTERBERGER S., SNELL U., MAIER H., HEIN K.R.G., On the application of different turbulence models for the computation of flow and combustion process in small scale wood heaters, Exp. Therm. Fluid Sci., 2000, 21, 99.
  • [2] PN-EN 303-5:2004. Heating boilers. Part 5. Heating boilers for solid fuels, hand and automatically stocked nominal heat output of up to 300 kW. Terminology, requirements and marking.
  • [3] FIEDLER F., The state od art of small-scale pellet-based heating systems and relevant regulations in Sweden, Austria and Germany, Renew. Sust. Energ. Rev., 2004, 8, 201.
  • [4] OLSSON M., KJALLSTRAND J., Low emissions from wood burning in an ecolabelled residential boiler, Atmos. Environ., 2006, 40, 1148.
  • [5] VERMA V.K., BRAM S., GAUTIER G., DE RUYCK J., Performance of a domestic pellet boiler as a function of operetional loads. Part 2, Biomass Bioenerg., 2011, 35, 272.
  • [6] BOMAN C., ESBJORN PETTERSSON S., WESTERHOLM R., BOSTROM D., NORDIN A., Stove performance and emission characteristic in residential wood log and pellet combustion. Part 1. Pellet stoves, Energy Fuels, 2011, 25 (1), 307.
  • [7] FIEDLER F., PERSSON T., Carbon monoxide emission of combined pellet and solar heating system, Appl. Energ., 2009, 86, 135, 2009.
  • [8] OLSSON M., KJALLSTRAND J., Emission from burning of softwood pellets, Biomass Bioenerg., 2004, 27, 607.
  • [9] JOHANSSON L.S., LECKNER B., GUSTAVSSON L., COOPER D., TULLIAN C., POTTER A., Emission characteristic of modern and old-type residential boilers fired with wood logs and wood pellets, Atmos. Environ., 2004, 38, 4183.
  • [10] KUBICA K., Energetic and ecological efficiency criterions of low heat output and solid fuel boilers used in towns. Certificates established for criterions of ecologic security, Institute of Chemical Coal Transformation, 1999 (in Polish).
  • [11] WERTHER J., SAENGER M., HARTGE E.U., OGADA T., SIAGI Z., Combustion of agricultural residues, Prog. Energ. Combust. Sci, 2006, 26, 1.
  • [12] POSKROBKO S., ŁACH J., KRÓL D., Experimental investigation of hydrogen chloride bonding with calcium hydroxide in the furnace of a stoker-fired boiler, Energ. Fuel., 2010, 24, 948.
  • [13] POSKROBKO S., ŁACH J., KRÓL D., Experimental investigation of hydrogen chlorine bonding with limestone and dolomite in the furnace of a stoker-fired boiler, Energ. Fuel., 2010, 24, 5851.
  • [14] POSKROBKO S., ŁACH J., KRÓL D., Hydrogen chloride bonding with calcium hydroxide in combustion and two-stage combustion of fuels from waste, Energ. Fuel., 2012, 26, 842.
  • [15] Musialik-Piotrowska A., Kordylewski W., Ciołek J., Mościcki K., Characteristics of fair pollutants emitted from biomass combustion in small retort boiler, Environ. Prot. Eng., 2010, 2, 123.
  • [16] MUSIALIK-PIOTROWSKA A., KOLANEK C., Emission of volatile organic compounds from diesel engine fuelled with oil-water emulsion, Environ. Prot. Eng., 2011, 1, 39.
  • [17] HARDY T.,MUSIALIK-PIOTROWSKA A., CIOŁEK J.,MOŚCICKI K., KORDYLEWSKI W., Negative effects of biomass combustion and co-combustion in boilers, Environ. Prot. Eng., 2012, 1, 25.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-bcb30dd3-1024-4524-94f2-310fa39a454b
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