Biomass Pellet Breakage: A Numerical Comparison Between Contact Models

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Abstract

The breakage behaviour of biomass pellets with a diameter of 6 mm under uniaxial compression test was studied experimentally and numerically using the discrete element method (DEM). Two types of the available bonding contact models in EDEM software were used to compare the macroscopic properties including the maximum stress at failure, strain at failure, and the pellet Young’s Modulus. The models are based on 1) the Timoshenko beam theory and 2) a bonded particle model. The results show that both models reasonably predict the maximum stress values, however, the bonded contact model is not able to predict the strain at failure and the Young’s Modulus while the results show a big deviation from the experimental results.
Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Discrete Element Methods (DEM8)
Number of pages11
Publication statusPublished - 2019
EventDEM8: 8th International Conference on Discrete Element Methods - Enschede, Netherlands
Duration: 21 Jun 201926 Jun 2019

Conference

ConferenceDEM8: 8th International Conference on Discrete Element Methods
CountryNetherlands
CityEnschede
Period21/06/1926/06/19

Keywords

  • Biomass Pellets
  • Breakage Behaviour
  • Contact Models
  • DEM
  • Compression

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  • Cite this

    Gilvari, H., de Jong, W., & Schott, D. (2019). Biomass Pellet Breakage: A Numerical Comparison Between Contact Models. In Proceedings of the 8th International Conference on Discrete Element Methods (DEM8)