Preliminary Results on Alternative Systems for Arundo Storage
Barontini, M.; Santangelo, E.; Figorilli, S.; Bellacima, R.; Gallucci, F.; Assirelli, A.; Pari, L.
22st European Biomass Conference and Exhibition, 23-26 June 2014, Hamburg, Germany.
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ETA-Florence Renewable Energies
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The giant reed (Arundo donax L.) is suitable for different bioenergy chains, and its specific characteristics may be affected by the harvest period and the storage system. The aim of the study was to investigate the effect of alternative storage systems on the characteristics of chopped Arundo. Open air storage (piles) were compared with unconventional solutions supplied with o without forced aeration system, tested on small scale into plastic containers (bins). During the storage (one month), the temperature of each treatment was constantly monitored using probes and moisture content was measured over time by periodic sampling. The remarkable difference among the conditioned bin and the control bin or the open pile was the behavior of temperatures in the first 10 days, when the moisture inside the ventilated bins has fallen about 50 percentage points, while in the other two the decrease observed did not exceed 20%. The rapid lowering of the moisture content in the ventilated bins restricted the dry matter losses to 14.28% after a month, well below the values (higher than 40%) registered for the other treatments. In the view of preserving the Arundo biomass for supplying different kind of bioenergy processes this study has furnished some clues on the relation storage/final use of the biomass.