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Type of publication: Straipsnis mokslo-populiarinimo leidinyje / Article in popular science editions (S6)
Field of Science: Energetika ir termoinžinerija / Energetics and thermal engineering (T006)
Author(s): Vaičaitis, Giedrius;Pupinis, Gediminas
Title: Topinambų (Helianthus tuberosus) stiebų sutankinimo proceso tyrimas
Is part of: Agroinžinerija ir energetika: ASU Žemės ūkio inžinerijos fakulteto mokslo populiarinimo ir gamybos žurnalas. , 2013, Nr. 18
Extent: p. 177-183
Date: 2013
Abstract: Recently a very important topic is energy - especially energy of biomass. Rising oil and gas prices and an approach to a clean environment, makes to look for alternative energy sources, including energy produced will be more economical and "greener". Jerusalem artichoke stem density is quite low, which means that the energy content per unit volume is low, for this purpose is use a compaction process. The process of biomass compacting is changing volume of material is displaced by air pressed piece of cloth. The aim - to assess the Jerusalem artichoke stems chopped compaction process, depending on the moisture content of chopped and exposed to forces. Pressing the Jerusalem artichoke chopped stems showed that the compression ratio depends directly on the briquettes exposed to forces and materials moisture. The maximum material density was 1128 kg/m3. The briquettes have a tendency to expand for some time (volume change) the removal of the load. Jerusalem artichoke stems expansion mainly occurs during the first 10-15 minutes, after volume change occurs much more slowly and fully stabilized after 12-14 hours. 25% of the moisture content of Jerusalem artichoke stems fretwork clump only to 150 kN force and the lower load without using of additional binding matter completely blocking properties. 18% and 20% moisture content of Jerusalem artichoke stems chopped optimum pressing force is 100 kN. Compaction of Jerusalem energy value per unit volume between 20% and 6.3% moisture can vary by up to 2 times
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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