DEM-based modelling framework for spray-dried powders in ceramic tiles industry. Part I: Calibration procedure
| Autor: | J.M. Tiscar, G. Mallol, A. Escrig, J. Boix, F.A. Gilabert |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
COLLISIONS
Technology and Engineering Materials science General Chemical Engineering Rolling resistance Mechanical engineering 02 engineering and technology PARAMETERS VALIDATION Discrete element method 020401 chemical engineering Scaling-up rotating drum medicine SEGREGATION Ceramic 0204 chemical engineering angle of repose Pressing DISCRETE PACKING Rotating drum angle of repose NUMERICAL SIMULATIONS Stiffness Intergranular corrosion ANGLE 021001 nanoscience & nanotechnology Angle of repose visual_art Calibration visual_art.visual_art_medium Tile REPOSE medicine.symptom 0210 nano-technology BEHAVIOR Spray-dried powder |
| Zdroj: | Repositori Universitat Jaume I Universitat Jaume I POWDER TECHNOLOGY |
| ISSN: | 0032-5910 1873-328X |
| DOI: | 10.1016/j.powtec.2019.08.053 |
| Popis: | This work describes a combined experimental-numerical study to characterize fine spray-dried powder used in the ceramic tile pressing process. A DEM-based granular assembly is endowed with a new set of scaling laws that allows for simulating reliably industrial processes using a much lower number of granules. To do it, a calibration strategy relying on three experimental setups is proposed; (i) compression test of bulk for granule stiffness, (ii) dynamic angle of repose and (iii) image analysis of the powder motion in a rotating drum for the intergranular and granular-boundary sliding and rolling friction coefficients. In order to evaluate the powder motion in a rotating drum, a robust method relying on a direct image analysis is proposed. This methodology makes it possible to quantitatively assess the frictional properties of the powder in contact with different surface materials. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect