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- Title
Modelling of the Process of Extrusion of Dry Ice through a Single-Hole Die Using the Smoothed Particle Hydrodynamics (SPH) Method.
- Authors
Wałęsa, Krzysztof; Górecki, Jan; Berdychowski, Maciej; Biszczanik, Aleksandra; Wojtkowiak, Dominik
- Abstract
This article presents the outcome of research on modelling the process of the extrusion of crystalline dry ice. The purpose of this process is to densify the material and obtain pellets of several millimeters in diameter. This reduces the sublimation rate in ambient conditions of the material whose temperature in a solid state is 195 K. A lower sublimation rate means a reduction of the loss of product in its final applications, which include refrigeration and reduction of atmospheric emissions of gaseous CO2. A ram-type extruder was considered in this analysis, in which dry ice was extruded through a single-hole die of varying geometry. The article presents the results of numerical analyses of the extrusion process, using a simulation method based on the Smoothed Particle Hydrodynamics (SPH) approach. The results from simulations were verified by the experimental data in terms of the maximum force required to complete the process, in order to assess the applicability of the proposed method in further research on dry ice compression.
- Subjects
DRY ice; EXTRUSION process; HYDRODYNAMICS; NUMERICAL analysis; GREENHOUSE gas mitigation
- Publication
Materials (1996-1944), 2022, Vol 15, Issue 22, p8242
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma15228242