Experimental investigations and numerical modelling of ignition process of the micronized cereal straw

• Autorzy: Bocian P. , Chmiel E. , Świątkowski B.
• Języki publikacji: EN

Abstrakty

EN

Biomass is the most important source of renewable energy in the Polish energy system. The most common technologies of energetic utilization of biomass in smali and middle scalę boilers is combustion of pellets and briauettes. This article is focused mainly on micronized biomass a special form of the pulverized fuel. This type of biomass can be utilized as fuel at middle and smali scalę boilers. Experimental investigations of the ignition process of such finely milled biomass is necessary for elaboration of guidelines for development of pulverized burners. Tests of the micronized cereal straw were performed at the pulverized fuel test stand. Different particie fractions were investigated in the rangę of 0-0.315 mm. Temperature range of the drop tube reactor was 600 - 1000°C. The tests showed that the micronized cereal straw has relatively Iow autoignition temperature (T = 410°C), comparing to other conventionally pulverized types of biomass with comparable sizes of particles. Moreover, combustion process of the micronized dust was characterized by the stand-off distance of the flame - ignition point. The experimental results were used for verification of numerical models of combustion of the micronized biomass fuel. The 2D and 3D calculations were performed using the ANSYS FLUENT code with the developed and modified at the Institute of Power Engineering model of combustion of the micronized fuel. Comparison of the numerical and experimental results was rewarding.

Słowa kluczowe

EN

biomass; ignition; pulverized fuel; bioenergy

• Wydawca: Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archivum Combustionis
• Rocznik: 2018
• Tom: Vol. 38 nr 1
• Strony: 29--40
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Bocian P.

• Institute of Power Engineering Thermal Processes Department Augustówka 36, 02-981 Warsaw, Poland, tel.: [phone]; fax: [phone]

autor

Chmiel E.

• Institute of Power Engineering Thermal Processes Department Augustówka 36, 02-981 Warsaw, Poland

autor

Świątkowski B.

• Institute of Power Engineering Thermal Processes Department Augustówka 36, 02-981 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).