Evaluation of Biomass Briquetting Mechanism


  • Edgars Repsa Latvia University of Agriculture
  • Eriks Kronbergs Latvia University of Agriculture
  • Andris Kronbergs Latvia University of Agriculture




Briquetting mechanisms, Common reed briquetting


The main task of this investigation is evaluation of patented (LV 14604 B) biomass briquetting mechanism. Theoretical relationship between necessary drive force and resistance force during pressing in die was determined. Briquettes from grinded common reed (Phragmites Australis) or common reed-peat mixture were produced with designed experimental briquetting press. Density of common reed briquettes depending on the size of particles was stated. Density of briquettes obtained during compacting was from 826.3±16.4 to 934.5±35.1 kg m-3. The minimum of density 826.3±16.4 kg m-3 had briquettes with particles from 6 mm grinding screen, but maximum density 934.5±35.1 kg m-3 had briquettes, when particles from 1.5 mm grinding screen had been used. Compositions of reed particles with peat allow obtaining briquettes density > 1000 kg m-3 if peat proportion in mixture is 30%. Results of theoretical and experimental investigation show that the designed pressing mechanism can be recommended for mobile biomass briquetter design.


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Author Biographies

  • Edgars Repsa, Latvia University of Agriculture
    Faculty of Engineering, Institute of Mechanics
  • Eriks Kronbergs, Latvia University of Agriculture
    Faculty of Engineering, Institute of Mechanics
  • Andris Kronbergs, Latvia University of Agriculture
    Faculty of Engineering, Institute of Mechanics


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How to Cite

E. Repsa, E. Kronbergs, and A. Kronbergs, “Evaluation of Biomass Briquetting Mechanism”, ETR, vol. 1, pp. 186–189, Aug. 2015, doi: 10.17770/etr2013vol1.824.