Determination the parameters and modes of new heliocollectors constructions work for drying grain and vegetable raw material by active ventilation

Котов, Борис; Spirin, Anatoly; Kalinichenko, Roman; Bandura, Valentyna; Polievoda, Yurii; Tverdokhlib, Ihor

doi:10.17221/73/2017-rae

Cited by 11 publications

(8 citation statements)

References 2 publications

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“…Теоретичним і експериментальним дослідженням процесу сушіння специфічної сільськогосподарської сировини присвячені роботи [3,4]. Результати застосування фізичних ефектів з метою інтенсифікації процесу сушіння і подальшого зберігання сільськогосподарської продукції наведені в роботах [5,6]. Детальний огляд і класифікація вібраційного і сушильного обладнання здійснені в роботі [7].…”

Section: аналіз останніх дослідженьunclassified

Study of vibroozonic grain drying process and energy parameters of the unit for its realization (Ukr)

Borysiuk,

Spirin,

Prysiazhniuk

et al. 2023

SWVNTU

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ДОСЛІДЖЕННЯ ПРОЦЕСУ ВІБРООЗОНОВОГО СУШІННЯ ЗЕРНА ТА ЕНЕРГЕТИЧНИХ ПАРАМЕТРІВ УСТАНОВКИ ДЛЯ ЙОГО РЕАЛІЗАЦІЇПроцес післязбиральної обробки зерна, особливо, сушіння, є одним із найважливіших у технології виробництва сільськогосподарської продукції. Ця обробка сприяє одержанню високоякісної продукції, її тривалому та ефективному збереженню до збирання нового врожаю. Для отримання зернової сировини кондиційної вологості та зниження енерговитрат у сільськогосподарському виробництві використовують різні прийоми інтенсифікації сушіння: вібраційне сушіння, рециркуляційне сушіння, попереднє нагрівання, вакуумне сушіння, сушіння із застосуванням інфрачервоного випромінювання, сушіння струмами високої частоти, сушіння зерна під впливом електричного поля та багато інших. Перспективним з точки зору енерговитрат та якості отриманої сировини є використання вібраційних сушарок у поєднанні із технологією озонування, яка виступає додатковим фактором інтенсифікації процесу сушіння. Статтю присвячено вирішенню актуальної задачі інтенсифікації процесу сушіння зернової сировини та розробці нового віброозонуючого комплексу, що реалізує комплексний технологічний вплив на оброблюване середовище. Експериментально досліджено енергетичні параметри розробленого віброозонуючого комплексу в залежності від режимних параметрів досліджуваного процесу сушіння зернової сировини.

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Section: аналіз останніх дослідженьunclassified

Study of vibroozonic grain drying process and energy parameters of the unit for its realization (Ukr)

Borysiuk,

Spirin,

Prysiazhniuk

et al. 2023

SWVNTU

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“…However, the main classification feature of the types of mathematical models of the technological environment is the object of study, which served in the works of various scientists and the material point, and flat layers of the medium, and loading as a continuous medium, and a set of particles with a certain set of connections between them, etc. [13][14][15][16][17][18].…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

“…For an elastic-plastic strength body with increasing strain, the stress increases linearly, then remains equal to the yield strength σ т2 of the first plastic element and after leveling the gap ∆ 2 , increases again to the yield strength σ т . After unloading, the stresses in the body are not completely removed: there are internal stresses equal to the sum of yield stresses [16].…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Study of Mechanical-Rheological Parameters of Feed Grain During to the Impact-Cutting Loading

Honcharuk

Kupchuk²

2022

Theoretical and Practical Aspects of the Development of Modern Scientific Research

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The research is based on the tasks of applied research on the topic: «Development of a complex of energy-efficient and resource-saving equipment and promising technologies for feeding farm animals of the AIC of Ukraine», state registration number 0121U108589. The authors’ research is aimed at solving current problems of technological renewal and development of the agro-industrial complex of Ukraine. Rationalisation of energy use necessitates the substantiation of the energy-saving variant by implementing energy-efficient machines and technologies in the system of feed preparation and feeding animals. Grinding largely determines the quality of compound feed, its digestibility by animals and birds, and has a significant impact on the growth of animal productivity, the profitability of the enterprise, the rhythm of work and production costs. Therefore, reducing the energy intensity of the process is an urgent task. In the laboratory of the theory of mechanisms and machines of the department of general technical disciplines and labor protection of Vinnitsa National Agrarian University, a vibratory disk crusher was designed to increase the level of technical support for the livestock industry. The crusher uses a more efficient method of grinding feed grain – a combination of impact and cutting, in contrast to a hammer mill that grinds with a free impact of hammers. Further improvement of the energy efficiency of grain grinding in a vibratory crusher requires theoretical studies of the process dynamics and determination of the minimum amount of energy required to break the grain. An effective and modern method for studying complex objects is system analysis, which makes it possible to modernize existing and design new machines without a large number of expensive physical experiments. The implementation of effective energy saving measures requires a deep theoretical study of the interaction of the material with the impact element of the crusher. Modelling for the grinding operation, it is necessary to consider structural-mechanical properties of the product, its ability to deform in different modes of interaction with the executive body of the technological machine. The total mechanical work expended on the destruction of the material and and energy intensity of the feed preparation process depends on this deformation. The aim of the research is to developing and analysing the mechanical-rheological model of the material, assess the process of relative deformation of maize grain during combined grinding by impact-cutting and determining the overall mechanical work for the destruction. The object of the research are the structural-mechanical properties of a maize grain, energy intensity of the process of destruction of an individual grain under conditions of impact-cutting action. The subject of the research is the regularities of the process of deforming a grain under the action of external load of the cutting edge of the crusher’s impactor. The paper defines the values of absolute deformation and mechanical work performed during the destruction of corn grain under the action of an applied shock-cutting load. These characteristics are presented in analytical and graphic form. The results of these studies make it possible to establish the boundary values of the plastic and elastic absolute deformations occurring in the material. This is a necessary condition for further theoretical substantiation of the law of energy-saving grinding.

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“…Загальні теоретичні питання трансформації тепла та речовини під час процесу сушіння вирішені для тіл класичної форми. Але в реальному випадку потрібно дещо спрощувати цей процес і приймати певні допущення [4,5]. Наприклад в [6] досліджується процес сушіння листостеблових матеріалів тільки з точки зору масо обмінних процесів, в [7] враховується внутрішнє джерело тепла, яке знаходиться в товстому шарі, в [8] розроблена аналітична математична модель процесів нагріву і сушіння рослинних матеріалів у товстому нерухомому шарі щільність якого змінюється за висотою.…”

Section: аналіз останніх досліджень та публікаційunclassified

Substantiation of Energy Efficient Regimes of Drying Products Fractional Processing of Alfalfa

Spirin¹,

Tverdokhlib²,

Kupchuk³

et al. 2021

Engineering, Energy, Transport Aic

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Shortage of quality feed significantly slows down the production of livestock products in Ukraine. One of the ways to overcome the crisis in the production of feed is the use of new high-energy feed, including the products of fractional processing of alfalfa. For the successful implementation of the skin type of feed, including the products of fractional processing of alfalfa, there should be an opportunity to create their reserves, feed should be canned for successful storage. The best way to preserve food is to dry it. Energy efficiency of the drying process, ie loss of nutrients, energy costs for the implementation of the process, etc. It depends on the method and its mode parameters. In this case, it is proposed to carry out the drying process in a thick layer of alfalfa pulp by active ventilation with heated air. To determine the rational parameters of the process, such as layer thickness, air flow, drying time and patents to conduct theoretical and experimental studies. Alfalfa pulp, like most wet plant materials, belongs to the capillary-porous bodies. The drying blood of these bodies has two distinct periods: constant and decreasing speeds (or the first and second drying periods). The moisture content of the material at which the transition from the first to the second period is called critical. As a result of theoretical research has obtained a dependence that determines the total duration of the drying process on a number of parameters, including initial, critical, equilibrium and final moisture content. To determine these coefficients, as well as to check the adequacy of the obtained dependence, experimental studies were conducted on a special installation. The main elements of the experimental setup are a fan, electric heater, containers with mass, shut-off, control and measuring equipment. According to the results of experimental research, graphical dependences of drying speed and process duration on regime parameters are obtained.

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Determination the parameters and modes of new heliocollectors constructions work for drying grain and vegetable raw material by active ventilation

Abstract: The article presents the results of experimental studies of the air heating efficiency in heliocollectors with different surface forms developed in order to justify their use in equipment for active ventilation of grain and feed raw materials.

Cited by 11 publications

References 2 publications

Study of vibroozonic grain drying process and energy parameters of the unit for its realization (Ukr)

Study of vibroozonic grain drying process and energy parameters of the unit for its realization (Ukr)

Study of Mechanical-Rheological Parameters of Feed Grain During to the Impact-Cutting Loading

Substantiation of Energy Efficient Regimes of Drying Products Fractional Processing of Alfalfa

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