Author/Authors :
J. Pagels، نويسنده , , M. Strand، نويسنده , , J. Rissler، نويسنده , , A. Szpila، نويسنده , , A. Gudmundsson، نويسنده , , M. Bohgard، نويسنده , , L. Lillieblad، نويسنده , , M. Sanati، نويسنده , , E. Swietlicki، نويسنده ,
Abstract :
The characteristics of aerosol particles formed during combustion of moist forest residue were studied as a function of load in a 1 MW moving grate boiler and at almost full load in a similar larger 6 MW boiler. The coarse (1 μm12) were K, S and Cl in the fine mode and Ca, K and S in the coarse mode. The dominant ions in the fine mode were K+, SO42− and CO32−. The fine mode particles had hygroscopic growth factors of around 1.65 at RH=90%, with a deliquescence point at a relative humidity between 30% and 60%. It was assessed that K2CO3 is responsible for the low deliquescence point. Fine mode particles of a given dry diameter had similar chemical composition.
