Water sorption by briquettes from biomass
2014
Pecen, J., Czech Univ. of Life Sciences, Prague (Czech Republic) | Zabloudilova, P., Czech Univ. of Life Sciences, Prague (Czech Republic) | Kavalek, M., Czech Univ. of Life Sciences, Prague (Czech Republic) | Cerna, I., Czech Univ. of Life Sciences, Prague (Czech Republic)
The work deals with the effects of water sorption by plant biomass briquettes. The influence of water sorption was studied especially in relation to the briquette material and their volume and shape changes. It was found that the weight of water absorbed by a briquette can be up to more triple then the initial weight of the dry briquette. Changes in the density and shape of briquettes were observed, depending on the amount of water catch by briquette. The water sorption by briquette is an irreversible process. The biggest changes of briquette, caused by sorption water, are the volume and shape changes. The volume change is always positive. Laboratory and field experiments proved that the decreasing initial density of briquettes increases its water sorption capacity as well. Individual particles of compacted materials create connections among them in the shape of the network. It causes greater mechanical firmness of briquette and its handling causes minimal damage.
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