Assessment of gross calorific value of crop and bio-energy residues

János Jóvér, Károly Antal, József Zsembeli, Lajos Blaskó and János Tamás
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János Jóvér: Department of Water- and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
Károly Antal: University of Debrecen Centre of Agricultural Sciences, Research Institute of Karcag, Karcag, Hungary
József Zsembeli: University of Debrecen Centre of Agricultural Sciences, Research Institute of Karcag, Karcag, Hungary
Lajos Blaskó: Department of Water- and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
János Tamás: Department of Water- and Environmental Management, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary

Research in Agricultural Engineering, 2018, vol. 64, issue 3, 121-127

Abstract: This study assessed the gross calorific values (GCV) of crop and bio-energy residues. In addition, it assessed the calorific values of sweet sorghum to clarify its potential as energy crop in the region. Furthermore, it statistically analysed the ash remaining after burning three bio-energy residues, bagasse, oil cakes and fermented sludge of biogas production, to identify their potential for agricultural use. Finally, the study calculated alkali content based on nutrient content and GCVs. Significant differences were found among the GCVs of the investigated materials. Among the crop residues, the least significant difference (LSD) (P ≤ 0.05) of the calorimetric values was 76.26 kJ/kg, and among the by-products of bio-energy production, it was 20.80 kJ/kg. Significant differences were also found in nutrient content. In the case of the alkali content of bio-energy residues, the LSD was 0.04 kJ.kg-1. For the bagasse and compost, the study recommends some technical operations to avoid slagging.

Keywords: biomass; combustion; calorimeter; ash; alkali content (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:64:y:2018:i:3:id:13-2017-rae

DOI: 10.17221/13/2017-RAE

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