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Energy Utilization of Spent Coffee Grounds in the Form of Pellets

Author

Listed:
  • Radovan Nosek

    (Department of Power Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitna 1, 010-26 Žilina, Slovakia)

  • Maw Maw Tun

    (VŠB-Technical University of Ostrava, 17, Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic)

  • Dagmar Juchelkova

    (VŠB-Technical University of Ostrava, 17, Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic)

Abstract

Nowadays it is important to limit the use and combustion of fossil fuels such as oil and coal. There is a need to create environmentally acceptable projects that can reduce or even stop greenhouse gas emissions. In this article, we dealt with the objectives of energy policy with regard to environmental protection, waste utilization, and conservation of natural resources. The main objective of the research was to assess the possibility of the use of spent coffee grounds (SCG) as fuel. As a part of the solution, the processing of coffee waste in the form of pellets, analysis of calorific value and combustion in the boiler were proposed. The experiments were done with four samples of pellets. These samples were made from a mixture of wood sawdust and spent coffee grounds with ratio 30:70 (wood sawdust: spent coffee grounds), 40:60, 50:50 and 100% of spent coffee grounds. The calorific values were compared with wood sawdust pellets (17.15 MJ.kg −1 ) and the best lower calorific value of 21.08 MJ.kg −1 was measured for 100% of spent coffee grounds. This sample did not achieve the desired performance during the combustion in the boiler due to the low strength of the sample.

Suggested Citation

  • Radovan Nosek & Maw Maw Tun & Dagmar Juchelkova, 2020. "Energy Utilization of Spent Coffee Grounds in the Form of Pellets," Energies, MDPI, vol. 13(5), pages 1-8, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:5:p:1235-:d:329515
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    References listed on IDEAS

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    Cited by:

    1. A. E. Atabani & Eyas Mahmoud & Muhammed Aslam & Salman Raza Naqvi & Dagmar Juchelková & Shashi Kant Bhatia & Irfan Anjum Badruddin & T. M. Yunus Khan & Anh Tuan Hoang & Petr Palacky, 2023. "Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 25(8), pages 7585-7623, August.
    2. Michal Holubčík & Ivana Klačková & Peter Ďurčanský, 2020. "Pyrolysis Conversion of Polymer Wastes to Noble Fuels in Conditions of the Slovak Republic," Energies, MDPI, vol. 13(18), pages 1-12, September.
    3. Duk-Gam Woo & Sang Hyeon Kim & Tae Han Kim, 2021. "Solid Fuel Characteristics of Pellets Comprising Spent Coffee Grounds and Wood Powder," Energies, MDPI, vol. 14(2), pages 1-17, January.
    4. Wentao Li & Mingfeng Wang & Fanbin Meng & Yifei Zhang & Bo Zhang, 2022. "A Review on the Effects of Pretreatment and Process Parameters on Properties of Pellets," Energies, MDPI, vol. 15(19), pages 1-23, October.
    5. Mendoza Martinez, Clara Lisseth & Saari, Jussi & Melo, Yara & Cardoso, Marcelo & de Almeida, Gustavo Matheus & Vakkilainen, Esa, 2021. "Evaluation of thermochemical routes for the valorization of solid coffee residues to produce biofuels: A Brazilian case," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).

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