Extractive gas analysis from a burning fixrd brd biofuel bed ---method and measurements
Conference contribution, 2003

An experimental rig was built to investigate counter-current combustion under well defined conditions. Measurements were performed with extraxtive gas analysis from inside a burning fixed bed of biofuel. A number of species concentrations were measured, together with mass change and air flow. A gas suction probe was designed and a method was developed to achieve good accuracy and spatial resolution. The influence of primary air flow, fuel particle size and moisture content on ignition and combustion rate, the length of the devolatilisation and char combustion phases, the maximum tront temperature and concentrations leaving the bed was investigated.

Combustion front

Fixed bed

Gas composition



Marie Rönnbäck

Claes Tullin

Jessica Samuelsson

Bo G Leckner

Department of Energy Conversion

Henrik Thunman

Department of Energy Conversion

Joint meeting of the Scandinavian-Nordic and Italian Sections of the Combustion Institute


Subject Categories

Energy Engineering

Areas of Advance




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