Effect of time from harvest to agglomeration process of herbaceous mass on the density and hardness of briquettes

Abstract

RYNKIEWICZ MAREK, TRÁVNÍČEK PETR, JUNGA PETR: Eff ect of time from harvest to agglomeration process of herbaceous mass on the density and hardness of briquettes. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013, LXI, No. 5, pp. 1371-1376 The study presents the results about the density and hardness of the briquettes produced from barley straw, wheat and rapeseed straw and hay. 6-month and 18-month raw materials a er harvest from the fi elds were used to the agglomeration, stored in stacks in the fi eld. The study showed that the briquettes produced from 6-month material characterized by a greater density in the comparison with the 18-month material. The diff erence was 130.28 kg·m −3 for the hay briquette, whereas the diff erence was 58.14 kg·m −3 in the case of rape straw briquettes. Similar results were found for the hardness.