The Influence of the Use of Polymer Lining within the Roller Press Gravity Feeder on Briquette Quality

Bembenek, Michał

doi:10.3390/polym12112489

Cited by 6 publications

(5 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to obtain the desired characteristics of biofuel obtained in the compaction process utilizing the piston or worm screw [8][9][10][11][12][13], it is necessary to modify the physical and chemical characteristics of loose biomass, in order to improve its capability to undergo the process of agglomeration. The primary concern is to select the correct particle size.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mechanical Behavior of Dry Corn Stalk Cutting

et al. 2023

View full text Add to dashboard Cite

This work presents an experimental study of cutting corn stalks for thermal energy generation. The study was carried out for the values of blade angle in the range of α = 30–80°, distance between the blade and the counter-blade g = 0.1, 0.2, 0.3 mm and the velocity of the blade V = 1, 4, 8 mm/s. The measured results were used to determine shear stresses and cutting energy. The ANOVA variance analysis tool was used to determine the interactions between the initial process variables and the responses. Furthermore, the blade load-state analysis was carried out, together with determining the knife blade strength characteristic, based on the determination criteria for the strength of the cutting tool. Therefore, the force ratio Fcc/Tx was determined as the determinant of strength, and its variance characteristic in the function of the blade angle, α, was used in the performed optimization. The optimization criteria entailed the determination of such values of the blade angle, α, for which the cutting force value, Fcc, and the coefficient of knife blade strength approached the minimum value. Hence, the optimized value of the blade angle, α, within the range 40–60° was determined, depending on the assumed weight parameters for the above-mentioned criteria.

show abstract

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Mechanical Behavior of Dry Corn Stalk Cutting

et al. 2023

View full text Add to dashboard Cite

show abstract

“…For loose and commuted materials, piston, worm or roller extrusion mechanism methods are used, depending on their properties and energy consumption. It is worth mentioning that roller presses have relatively lower energy consumption compared to the other two methods (worm and piston mechanisms) [23]. Examples of the use of pelletizers in worm and roller technology include, among others, the compaction of wood sawdust, bronze and other metals, and swarf [23].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning that roller presses have relatively lower energy consumption compared to the other two methods (worm and piston mechanisms) [23]. Examples of the use of pelletizers in worm and roller technology include, among others, the compaction of wood sawdust, bronze and other metals, and swarf [23]. Roller machines cause a noticeable and uneven increase in the temperature value on the briquette surface [24], which is not desirable in the case of dry ice, for which an increase in the ambient temperature means an increase in the intensity of the sublimation process.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Effect of Dry Ice Compression on the Poisson Ratio

et al. 2022

View full text Add to dashboard Cite

In the processing of waste materials, attention must be given to the efficient use of energy. The pelletization of dry ice is a good example of such processes. A literature review shows that in the pelletizers available on the market, the force applied in the process is excessive. As a result, the efficiency of the utilization of inputs, including electricity and carbon dioxide, is at a very low level. This article presents the results of experimental research on the effect of the degree of dry ice compression on the value of the Poisson ratio. The first part of this article presents the research methodology and a description of the test stand, developed specifically for this research, bearing in mind the unique properties of carbon dioxide in the solid state. The results presented show the behavior of dry ice during compression in a rectangular chamber for different final densities of the finished product. As a result, it is possible to determine the values of the Poisson ratio as a function of density, using for this purpose four mathematical models. The findings of this research may be useful for research work focused on the further development of this process, such as by using the Drucker–Prager/Cap numerical model to optimize the geometric parameters of the parts and components of the main unit of the machine used in the extrusion process of dry ice.

show abstract

“…The availability of metal, oxide, composite and non-metallic coatings allows for rationally combining the base and coating materials’ properties. The most frequently used coatings are paint coatings [ 1 , 2 , 3 , 4 , 5 ], polymers [ 6 , 7 , 8 ], and biopolymer films [ 9 , 10 ]. All these types of widespread coatings are used in various fields of technology and medicine.…”

Section: Introductionmentioning

confidence: 99%

Multiclass Level-Set Segmentation of Rust and Coating Damages in Images of Metal Structures

Bembenek

Mandziy

Ivasenko

et al. 2022

Sensors

Self Cite

View full text Add to dashboard Cite

This paper describes the combined detection of coating and rust damages on painted metal structures through the multiclass image segmentation technique. Our prior works were focused solely on the localization of rust damages and rust segmentation under different ambient conditions (different lighting conditions, presence of shadows, low background/object color contrast). This paper method proposes three types of damages: coating crack, coating flaking, and rust damage. Background, paint flaking, and rust damage are objects that can be separated in RGB color-space alone. For their preliminary classification SVM is used. As for paint cracks, color features are insufficient for separating it from other defect types as they overlap with the other three classes in RGB color space. For preliminary paint crack segmentation we use the valley detection approach, which analyses the shape of defects. A multiclass level-set approach with a developed penalty term is used as a framework for the advanced final damage segmentation stage. Model training and accuracy assessment are fulfilled on the created dataset, which contains input images of corresponding defects with respective ground truth data provided by the expert. A quantitative analysis of the accuracy of the proposed approach is provided. The efficiency of the approach is demonstrated on authentic images of coated surfaces.

show abstract

The Influence of the Use of Polymer Lining within the Roller Press Gravity Feeder on Briquette Quality

Cited by 6 publications

References 39 publications

Experimental Study on the Mechanical Behavior of Dry Corn Stalk Cutting

Experimental Study on the Mechanical Behavior of Dry Corn Stalk Cutting

Experimental Investigation on the Effect of Dry Ice Compression on the Poisson Ratio

Multiclass Level-Set Segmentation of Rust and Coating Damages in Images of Metal Structures

Contact Info

Product

Resources

About