Discrete element modelling (DEM) of hemp processing using a hammermill

Canadian Biosystems Engineering

article

Mohammad A. Sadek¹  Ying Chen² 

[1] BioResource and Agricultural Engineering Department, California Polytechnic State University;Department of Biosystems Engineering, University of Manitoba

关键词: Discrete element method (DEM);    PFC3D;    hammermill;    energy;    power;    hemp.;   

DOI  :  10.7451/CBE.2021.63.2.1

学科分类：农业科学（综合）

来源: Canadian Society of Agricultural Engineering

【 摘 要 】

The discrete element method (DEM) was used to develop amodel to simulate hemp processing using a hammer mill.The model was computed using a commercial softwarepackage - Particle Flow Code in Three Dimensions (PFC3D).In the model, a simulated hemp stem was defined usingspherical particles connected with parallel bondsimplemented in the PFC3D. The breakage of the bondsmimics the hemp breaking phenomenon within thehammermill. A micro property, bond strength of the hempstems, was calibrated using the literature data fromcompression tests of hemp stems. The calibrated bondstrength was 2.2 x106 Pa. With the calibrated bond strength,the model was used to simulate the power and energydistributions within the hammermill. The simulations wereperformed for different hammer rotational speeds andfeeding masses. The results showed that both the specifickinetic and strain energies increased with the increase of thefeeding mass; however, the effects of the hammer rotationalspeed did not follow any particular trends.

【 授权许可】

CC BY