ENERGETIKA

ISSN for PRINT: 0235-7208

For Online Access

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2004, Volume1

Issue 3

80 pages

Issue price - $29.00

Andrius Kavaliauskas
Lietuvos energetikos institutas, Atsinaujinanciø energijos saltiniø laboratorija, Breslaujos g. 3, LT-44403 Kaunas, Lietuva

Vladislavas Katinas
Lithuanian Energy Institute, Atsinaujinanciø energijos saltiniø laboratorija, Breslaujos str. 3, LT-44403 Kuanas, Lithuania

Anker Jensen
Technical University of Denmark, Research Centre Combustion and Harmful Emission Control Kgs. Lyngby 229, DK-2800 Denmark

Peter Arendt Jensen
Technical University of Denmark, Research Centre Combustion and Harmful Emission Control Kgs. Lyngby 229, DK-2800 Denmark

The behavior of the combustion process in a fuel bed on the grate is characterized by different thermochemical conversion stages, each with significantly different temperatures, and the reacting conditions. This simple analysis of combustion processes taking place on the grate is a useful information for understanding the paths of emission formation and destruction. A large fixed bed reactor was used for obtaining the experimental results of straw combustion. A fixed bed reactor contains a column of biomass fuel, which is ignited at the top and with air entering through the grate from the bottom, measurements are performed while the ignition front proceeds downwards. The influence of the inlet air flow velocity and temperature, moisture content in the fuel and oxygen concentration in the inlet air on the combustion parameters such as ignition front velocity (kg/(m²s)), temperature, and gas species concentration during combustion is presented based on measurements of in-bed temperatures along the bed and different gas compounds (O₂, CO₂, CO and NO) over the bed.

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