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

Author

Listed:
  • 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)

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.

Suggested Citation

  • János Jóvér & Károly Antal & József Zsembeli & Lajos Blaskó & János Tamás, 2018. "Assessment of gross calorific value of crop and bio-energy residues," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 64(3), pages 121-127.
    • Handle: RePEc:caa:jnlrae:v:64:y:2018:i:3:id:13-2017-rae
    DOI: 10.17221/13/2017-RAE
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    References listed on IDEAS

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    1. K. Pazderů & J. Hodoval & J. Urban & J. Pulkrábek & V. Pačuta & J. Adamčík, 2014. "The influence of sweet sorghum crop stand arrangement on biomass and biogas production," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(9), pages 433-438.
    2. J. Malaťák & J. Bradna, 2014. "Use of waste material mixtures for energy purposes in small combustion devices," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 60(2), pages 50-59.
    3. Türe, Semra & Uzun, Davut & Türe, I.Engin, 1997. "The potential use of sweet sorghum as a non-polluting source of energy," Energy, Elsevier, vol. 22(1), pages 17-19.
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