Version 1
: Received: 11 March 2024 / Approved: 11 March 2024 / Online: 12 March 2024 (09:11:46 CET)
How to cite:
Manokaran, M.; Morgeneyer, M.; Weiss, D. Effect of Microscopic Properties for Industrial Cohesive Powder. Preprints2024, 2024030658. https://doi.org/10.20944/preprints202403.0658.v1
Manokaran, M.; Morgeneyer, M.; Weiss, D. Effect of Microscopic Properties for Industrial Cohesive Powder. Preprints 2024, 2024030658. https://doi.org/10.20944/preprints202403.0658.v1
Manokaran, M.; Morgeneyer, M.; Weiss, D. Effect of Microscopic Properties for Industrial Cohesive Powder. Preprints2024, 2024030658. https://doi.org/10.20944/preprints202403.0658.v1
APA Style
Manokaran, M., Morgeneyer, M., & Weiss, D. (2024). Effect of Microscopic Properties for Industrial Cohesive Powder. Preprints. https://doi.org/10.20944/preprints202403.0658.v1
Chicago/Turabian Style
Manokaran, M., Martin Morgeneyer and Dominik Weiss. 2024 "Effect of Microscopic Properties for Industrial Cohesive Powder" Preprints. https://doi.org/10.20944/preprints202403.0658.v1
Abstract
The characteristics of powders on a bulk scale are heavily influenced by both the material properties and the size of their primary particles. Throughout the stages of storage and transportation in the powder processing industry, various forms of deformation and stress, such as pressure and shear, impact these materials. Recognizing the point at which a powder undergoes yielding becomes particularly significant in numerous applications. There are also times when you need to understand the level of stress needed to maintain it. Measurement of powder yield and flow properties remains a challenge and is addressed in this study. As part of the CALIPER collaborative project, a number of shear experiments were performed using two shearing devices: Schulze ring shearing device and Anton Paar Powder Cell (APCC). These experiments have three purposes: i) Test reproducibility/consistency between two shear devices and test protocols. ii) To relate bulk behavior to microscopic particle properties, focusing on bulk density and thus the effect of cohesion between particles; iii) Investigate the influence of the temperature of heated powders on the powder flow properties, which is important for the industrial reactors. Interestingly, for samples with small particle size, bulk cohesion increases slightly, but bulk friction increases significantly, because of particle interaction effects. The experimental data not only provide useful insight into the role of microscopically attractive van der Waals gravitational and/or compressive forces on the macroscopic flow behavior of bulk powders, but also have industrial relevance. We also provide a robust datas of cohesive and attritional fine powder for silo design used for calibration and validation of silos, models and computer simulations.
Keywords
Shear testing; Cohesive powders; Bulk solids
Subject
Engineering, Chemical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
