Investigation of the separation of combed heap of winter wheat

Lezhenkin, Oleksandr; Halko, Serhii; Miroshnyk, Oleksandr; Vershkov, Oleksandr; Леженкін, Іван Олександрович; Suprun, Olena; Shchur, Taras; Kruszelnicka, Weronika; Kasner, Robert

doi:10.1088/1742-6596/1781/1/012016

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…As can be seen from previous research that mathematical modelling also identifies directions for further improvement of machines for cleaning grain with air flow [26]. Mathematical modelling of grain separation in a grain cleaning machine [27,28] and the study of its sieve frame operation [29] confirm the adequacy of mathematical modelling. The evaluation of mathematical models in separating light impurities in sediment chambers of grain cleaning machines has been carried out in parallel with experimental studies [30].…”

Section: Introductionmentioning

confidence: 55%

Improving Energy Efficiency of Grain Cleaning Technology

et al. 2022

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The relevance of the research topic was substantiated, and the purpose and objectives of the study were formulated. It was determined that the energy efficiency of the grain cleaning process can be evaluated only when all the machines operate in a single production line and are coordinated in productivity. Research on energy savings and energy efficiency in the technological process of post-harvest grain treatment using grain cleaning units by implementing the method of mathematical experiment planning (MEP) was conducted. The method is based on transforming the initial mathematical models of various research objects into a model in the form of regression equations convenient for solving the problems of research, analysis and optimization of the object. For the first time, the mathematical description of the target function was performed by conducting a multifactorial experiment based on second-order design. The research produced adequate second-order regression equations, making it possible to determine the minimum specific consumption of electricity for the technological process of post-harvest grain treatment at grain cleaning facilities, while complying with the agrotechnical requirements for the quality of the cleaned grain. The problem of optimization of the research object was solved by mathematical transformations, which enabled obtaining graphical and analytical interpretations of the optimum area. For this purpose, the canonical transformation of the mathematical model and the method of two-dimensional cross-sections of the response surface were used. Research has led to the development of scientifically based standards of specific electricity consumption for grain cleaning processing schemes, which serve as criteria for evaluating energy savings in the technological processes.

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Section: Introductionmentioning

confidence: 55%

Improving Energy Efficiency of Grain Cleaning Technology

et al. 2022

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“…The author of the study (Piven, 2017) considered the process of separating the seed material into the vibrating tray without researching the previous components of the separation process. The results of studies of the operation of the pneumatic gravity separator are given in (Lezhenkin et al, 2021), but the author did not take into account the geometric features of the grain particles. The use of continuum mechanics model or material two-phase flow dynamics was divided into two parts: dynamics of carrier phase and dynamics of disperse particles.…”

Section: Introductionmentioning

confidence: 99%

Improving Efficiency of Corn Seed Separation and Calibration Process

Bredykhin,

Tikunov,

Slipchenko

et al. 2023

Agricultural Engineering

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The paper analyzes the existing theoretical research of corn seed separation and calibration processes. The machines, tools and equipment that implement the process were studied. An innovative sieve with openings in the Cassini oval shape was proposed for the economical separation and calibration of corn seeds. The results of operation of the proposed sieve in the operating conditions of Kharkiv Feed Mill on BSH-100 serial separators were considered. The study of the effectiveness of sifting corn seeds through the holes of the sieves was carried out in partnership with the State University “Ukrainian Research Institute of Forecasting and Testing of Agricultural Production Techniques and Technologies named after Leonid Pohorily” (Kharkiv Branch). The use of sieves with openings in the Cassini oval shape, instead of classic circular base openings, was found to result in an increase in throughput capacity of the sieve and open area of up to 20%.

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“…Analytical and experimental studies are presented in [ 5 , 21 , 22 , 23 , 24 , 25 ]. However, it should be noted that the comparative study of energy consumption when using fluidization devices and mechanical or semi-fluidization quick-freezers has received little attention [ 10 , 26 , 27 , 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Ways to Improve the Efficiency of Devices for Freezing of Small Products

et al. 2022

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It has been established that one of the main problems in the technology of the production of loose food products is the sticking of vegetables or fruits into one block. It has been proven that one of the steps to solve this problem is the use of berries, fruits, or vegetables during freezing in the form of a fluidized bed in air. However, a significant part of the energy is spent precisely when creating a fluidized bed with the help of fans. By improving the separation efficiency of small products in the freezing process, it would be possible to significantly reduce the energy costs of freezing worldwide. The purpose of this work was to determine ways to increase the efficiency of devices for freezing small products. The goal was achieved through the use of a modified method for studying energy costs, taking into account energy costs for fluidization and mechanical shaking. For comparison, two options for the efficient separation of small products during freezing were considered. Namely the separation of small products in the process of freezing with the help of fluidization, and with the help of mechanical shaking. Comparison of these variants showed that it was advisable to separate small products during freezing by mechanical shaking. It was established that their energy parameters, as well as fractional properties, are significantly different. The product temperature was determined for the case of a constant temperature of the cooling air and equipment elements. The results obtained confirmed the possibility of achieving significant energy savings of 1.5–3.5 times by using the mechanized device we proposed for freezing fruits and vegetables. The main result of this paper is the proposed method, or algorithm, for calculating energy costs for fluidization and mechanical shaking, which could be used in the design of devices for the freezing of small products; as well as the obtained data confirming the correspondence of the theoretical calculations to reality. The novelty of the research consists in presenting a model or algorithm for calculating the energy costs for fluidization and mechanical shaking. The importance of the results of the work lies in the possibility of using this technique to assess the energy effectiveness of devices for the freezing of small products.

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Investigation of the separation of combed heap of winter wheat

Cited by 6 publications

References 3 publications

Improving Energy Efficiency of Grain Cleaning Technology

Improving Energy Efficiency of Grain Cleaning Technology

Improving Efficiency of Corn Seed Separation and Calibration Process

Ways to Improve the Efficiency of Devices for Freezing of Small Products

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