Pollutant concentrations from a 15 kW heating boiler supplied with sunflower husk pellets

• Autorzy: Juszczak M.
• Języki publikacji: EN

Abstrakty

EN

Sunflower husk pellets were fired in a channel type furnace originally designed for wood pellets. The furnace was installed in a 15 kW heating boiler. CO, CxHy, NO, NO2 and dust concentrations were measured. Despite reducing the temperature in the furnace down to ca. 700 °C by fuel stream reduction, ash melting and sintering phenomenon could not be completely avoided. CO concentration of ca. 6500 mg/m3 (10% O2) was observed, boiler heat efficiency being 63%. A test for sunflower husk and wood pellet mixture showed a reduction of CO concentration down to 2153, 1683 and 966 mg/m3, respectively (10% O2), wood pellet volume proportion being 25, 50 and 75%, respectively, and hydrocarbon concentration almost down to zero. The impact of temperature in the combustion chamber and oxygen concentration on pollutant concentrations was determined.

Słowa kluczowe

EN

pelletizing; boilers; combustion chambers; heat efficiency; oxygen concentrations; pollutant concentration; wood pellet; sunflower husk

PL

granulacja; kotły; komora spalania; wydajność cieplna; stężenie tlenu; stężenie zanieczyszczeń; łuski słonecznika

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2012
• Tom: Vol. 38, nr 1
• Strony: 35--43
• Opis fizyczny: Bibliogr. 13 poz., tab., rys.

Twórcy

autor

Juszczak M.

• Poznan University of Technology, Institute of Environmental Engineering, Division of Heating, Air Conditioning and Air Protection, Piotrowo 3A, 60-965 Poznań,

Bibliografia

• [1] KNAUS H., RICHTER S., UNTERBERGER S., SNELL U., MAIER H., HEIN K.R.G., Exp. Therm. Fluid Sci., 2000, 21, 99.
• [2] OHMAN M., BOMAN C., HEDMAN H., NORDIN A., BOSTROM D., Biomass Bioenergy, 2004, 27, 585.
• [3] JOHANSSON L.S., LECKNER B., GUSTOVSSON L., COOPER D., TULLIAN C., POTTER A., Atmos. Environ., 2004, 38, 4183.
• [4] KJALLSTRAND J., OLSSON M., Biomass Bioenergy, 2006, 27, 557.
• [5] MUSIALIK-PIOTROWSKA A., KORDYLEWSKI W., CIOŁEK J., MOŚCICKI K., Environ. Prot. Eng., 2010, 2, 123.
• [6] MUSIALIK-PIOTROWSKA A., KOLANEK C., Environ. Prot. Eng., 2011, 1, 31.
• [7] WERTHER J., SAENGER M., HARTGE E. U., OGADA T., SIAGI Z., Progress Energy Combus. Sci., 2006, 6, 1.
• [8] RYBAK W., Solid biofuels. Combustion and co-combustion, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław, 2006 (in Polish).
• [9] EN 12048. Solid fertilizers and liming materials. Determination of moisture content-Gravimetric method by drying at (105 mm2°C), December,1999.
• [10] PN-81/G-04513. Solid fuels. Higher and lower heating value determination.
• [11] PN-EN-303-5, 2002. Heating boilers, part 5: Heating boilers for solid fuels, hand and automatically stocked, nominal heat output of up to 300 kW. Terminology, requirements, testing and marking.
• [12] JUSZCZAK M., Archiwum Gospodarki Odpadami i Ochrony Środowiska, 2008, 8, 63.
• [13] KRUCZEK S., Boilers. Construction and calculations, Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław, 2001 (in Polish).