Visualization and Measurement of Swirling Flow of Dry Ice Particles in Cyclone Separator-Sublimator

Yamasaki, Hiroyuki; WAKIMOTO, Hiroyuki; Kamimura, Takeshi; Hattori, Kazuhiro; Nekså, Petter; Yamaguchi, Hiroshi

doi:10.3390/en15114128

Cited by 7 publications

(6 citation statements)

References 30 publications

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“…The future objective is to advance the research and development efforts to improve the energy efficiency of industrial and geological processes used to increase the density of solid carbon dioxide [ 11 , 34 ].…”

Section: Discussionmentioning

confidence: 99%

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Influence of Die Land Length on the Maximum Extrusion Force and Dry Ice Pellets Density in Ram Extrusion Process

Górecki,

Łykowski

2023

Materials

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The management of waste materials, particularly non-biodegradable substances such as plastics and composites, is an increasingly pressing issue. Energy efficiency in industrial processes is crucial throughout their life cycle, including the handling of materials such as carbon dioxide (CO2), which has a significant environmental impact. This study focuses on the conversion of solid CO2 into pellets using ram extrusion, a widely used technique. The length of the die land (DL) in this process plays a critical role in determining the maximum extrusion force and the density of dry ice pellets. However, the influence of DL length on the characteristics of dry ice snow, known as compressed carbon dioxide (CCD), remains understudied. To address this research gap, the authors conducted experimental trials using a customized ram extrusion setup, varying the DL length while keeping the other parameters constant. The results demonstrate a substantial correlation between DL length and both the maximum extrusion force and dry ice pellets density. Increasing the DL length leads to a decreased extrusion force and optimized pellet density. These findings provide valuable insights for optimizing the ram extrusion process of dry ice pellets and improving waste management, energy efficiency, and product quality in industries utilizing this technique.

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Section: Discussionmentioning

confidence: 99%

“…Taking into account a considerable percentage of processes related to the production of ammonia compounds, manufacturers recover carbon dioxide in order to reuse it in other production/industrial processes or deliver it to interested third parties, as the case may be [9]. Carbon dioxide emission sources [10,11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Die Land Length on the Maximum Extrusion Force and Dry Ice Pellets Density in Ram Extrusion Process

Górecki,

Łykowski

2023

Materials

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“…In (Wu et al 2022, Yamasaki 2022, Yohana 2022, Yuge et al 2021, the authors prove that threedimensional modelling is based on time and space discretisation. It includes the main features related to crystallographic slip, dislocation dynamics, and long-and short-range interactions of dislocation segments.…”

Section: Analytical Solution Of the Problem Of Minimization Of Aerody...mentioning

confidence: 99%

Minimization of Energy Consumption of Vortex Devices for Granulation of Materials

Pavlenko,

Cheilytko,

Ilin

et al. 2023

Rocznik Ochrona Środowiska

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The article considers the possibility of efficient energy and environmental use of vortex devices for the granulation of solids. The factors influencing the energy consumption for generating a vortex flow with dispersed solid inclusions are analysed. A mathematical model for calculating the aerodynamic drag of a vortex apparatus in a clean gas flow, which was used in computer modelling, is presented. The main dependencies for determining the influence of the geometric dimensions of the vortex on its aerodynamic drag are also given. An analytical solution to the problem of minimising the aerodynamic drag of a vortex apparatus during the movement of a dispersed medium is considered. The forces acting on the particles in the cyclone chamber during interaction with the gas are analysed. In this paper, a general method for calculating the parameters of cyclone-vortex devices for dispersed media using the basic equations of hydrodynamics and gas dynamics is developed. The solution approach used in this paper can be extended to other vortex devices not considered in this work.

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“…In the solid phase and under normal conditions, carbon dioxide has a temperature of −78.5 • C and it sublimates [7]. Hence, it is widely used, for example, in cooling processes [8,9] and cleaning of surfaces [10]. However, if it is to be used effectively it needs to be densified, which allows to reduce the material's sublimation rate [11].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Dry Ice Compaction Process: Comparison of Drucker-Prager/Cap and Cam Clay Models with Experimental Results

et al. 2022

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This article presents the results of a numerical experimental study on the simulation of the dry ice compaction process. The first part of the article presents a description of the material used, material models and the methodology of experimental research. In the second part, numerical and experimental study results are presented. For the purpose of comparison, a parametric method based on the residual sum of squares was used. The application of the indicated method fills the gap in the available literature as the authors are not aware of any existing data from previous studies on the method of comparing the results of numerical tests in terms of the obtained results and the change of the value of the tested parameter as a function of another variable. The results of this study can be useful in research work aimed at further development of the process of extrusion and compaction of dry ice using Drucker-Prager/Cap and modified Cam-Clay material models for instance for optimization of geometric parameters of parts and components of the main assembly of the machine used in the process of dry ice extrusion.

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Visualization and Measurement of Swirling Flow of Dry Ice Particles in Cyclone Separator-Sublimator

Cited by 7 publications

References 30 publications

Influence of Die Land Length on the Maximum Extrusion Force and Dry Ice Pellets Density in Ram Extrusion Process

Influence of Die Land Length on the Maximum Extrusion Force and Dry Ice Pellets Density in Ram Extrusion Process

Minimization of Energy Consumption of Vortex Devices for Granulation of Materials

Numerical Simulation of Dry Ice Compaction Process: Comparison of Drucker-Prager/Cap and Cam Clay Models with Experimental Results

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