The Influence of Apple, Carrot and Red Beet Pomace Content on the Properties of Pellet from Barley Straw

Jerzy Chojnacki, Agnieszka Zdanowicz, Juraj Ondruška, Ľubomír Šooš and Małgorzata Smuga-Kogut
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Jerzy Chojnacki: Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka Str.15-17, 75-620 Koszalin, Poland
Agnieszka Zdanowicz: Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka Str.15-17, 75-620 Koszalin, Poland
Juraj Ondruška: Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Námestie Slobody 17, Bratislava 1, 812 31 Bratislava, Slovakia
Ľubomír Šooš: Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Námestie Slobody 17, Bratislava 1, 812 31 Bratislava, Slovakia
Małgorzata Smuga-Kogut: Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka Str.15-17, 75-620 Koszalin, Poland

Energies, 2021, vol. 14, issue 2, 1-13

Abstract: Influence of wastes generated during juice production: apple, carrot and red beet, added to barley straw, on density of pellet mass, pellet hardness, ash content and calorific value was assessed. Dry mass content of additives in the substrate to pellet production was: 0, 10, 20 and 30% of the mixture weight. The relative humidity of the raw material was: 17.0, 19.5 and 22%. Higher percentages of additives and higher moisture content in the raw materials increased the hardness and density of the pellet. The contents of natural polymers such as lignin, hemicellulose and cellulose were determined in primary materials used to prepare substrate and in pellet. Changes in the determination of these substances was observed as a result of the granulation process.

Keywords: solid biofuels; pellet; pellet hardness; straw; pomace; apple; carrot; red beet (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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