Simplified model for particle collision related to attrition in pneumatic conveying

Dmitry Portnikov, Nir Santo, Haim Kalman

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


This paper presents a simple method for predicting particle attrition during pneumatic conveying. The model calculates the changes in the particle size during pneumatic conveying (as a result of the collisions between the particles and bend walls) by using empirical correlations for both the machine and material functions. The method does not require the use of complicated simulations such as DEM–CFD. Furthermore, the computational model was written in MATLAB, and the results agree well with the experimental results for salt particles. The computation time was very short: a few seconds for the first collision (particles passed through one bend), and below one minute for six collisions. The experimental results and parametric study show that higher bend radius ratios caused less damage to the conveyed material. Moreover, higher air velocities and larger pipe diameters caused more damage to the conveyed material.

Original languageEnglish
Pages (from-to)359-369
Number of pages11
JournalAdvanced Powder Technology
Issue number1
StatePublished - 1 Jan 2020


  • Breakage modeling
  • Machine functions
  • Material functions
  • Particle attrition
  • Pneumatic conveying

ASJC Scopus subject areas

  • General Chemical Engineering
  • Mechanics of Materials


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