Combustion of biomass in jet flames

Ash deposition experiments have been carried out in the 950-1200 °C temperature range. Around three times more deposit (when normalized to the fuel ash content) is formed for biomass fuels than for the coal. For biomass fuels, a good correlation between deposition rate and particles temperature has been obtained. Sticking efficiency of the impacting particles has been estimated to be 0.03-0.09 at 970 °C and around 0.4 at 1170 °C.