Effect of Compaction Pressure and Moisture Content on Quality Parameters of Perennial Biomass Pellets

Jakub Styks, Marek Wróbel, Jarosław Frączek and Adrian Knapczyk
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Jakub Styks: Department of Mechanical Engineering and Agrophisics, University of Agriculture in Kraków, Balicka 120, 30-149 Kraków, Poland
Marek Wróbel: Department of Mechanical Engineering and Agrophisics, University of Agriculture in Kraków, Balicka 120, 30-149 Kraków, Poland
Jarosław Frączek: Department of Mechanical Engineering and Agrophisics, University of Agriculture in Kraków, Balicka 120, 30-149 Kraków, Poland
Adrian Knapczyk: Department of Mechanical Engineering and Agrophisics, University of Agriculture in Kraków, Balicka 120, 30-149 Kraków, Poland

Energies, 2020, vol. 13, issue 8, 1-20

Abstract: In Poland the use of solid biomass obtained from intentional plantations of energy plants is increasing. This biomass is most often processed into solid fuels. There are growing indications that renewable energy sources, in particular biomass production, will continue to develop, so the better we know the raw material, the more effectively we will be able to use it. The results of tests that determine the impact of compaction pressure on selected quality parameters of pellets made from selected biomass types are presented. Material from plants such as Giant miscanthus ( Miscanthus × giganteus Greef et Deu), Cup plant ( Silphium perfoliatum L.), Virginia mallow ( Sida hermaphrodita (L.) Rusby) was studied. The compaction process was carried out using the SIRIO P400 hydraulic press with a closed chamber with a diameter of 12 mm. Samples were made in four pressures: 131; 196; 262; 327 MPa and three moisture levels: 8%, 11%, 14%. It was found that with increasing compaction pressure and moisture content up to a certain point, the density and durability of the pellets also increased. Each of the materials is characterized by a specific course of changes in the parameters tested.

Keywords: pressure compaction; moisture content; solid density; mechanical durability; Cup plant; Virginia mallow; Giant miscanthus; perennial biomass (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (15)

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