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Постійне посилання колекціїhttps://dspace.nuft.edu.ua/handle/123456789/7522

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Automated methods of controlling the flow of syrup in the evaporation station with subsystems of decision support and forecasting
(2022) Hrama, Mykhailo; Sidletskyi, Victor
Introduction. The purpose of the presented study is to substantiate the methods of regulating the consumption of syrup in the evaporation station with a forecasting subsystem, which will allow to predict the behavior of the system and the decision-making subsystem, which will reduce the influence of the human factor on the course of the evaporation process. Materials and methods. The work of the evaporation station with the subsystem of forecasting and decision support when regulating the consumption of syrup was researched. In the automation scheme for regulating the flow rate of syrup, induction flow meters are used as a sensor. Pneumatic saddle valves with a built-in throttle and an electro-pneumatic converter were used as actuators. Results and discussion. The use of neural sensors occurs only in certain specific cases of intelligent control of the evaporation process, there is no data comparing the use of intelligent regulators with classical ones, the possibility of combining the work of several types of intelligent regulators, as well as clear means of predicting their work and supporting decision-making. Therefore, in this paper, a decision-making subsystem has been justified, which made it possible to assess the priorities of user requests when using a human- machine interface. The highest priority was given to the request to display information on possible changes to the adjustment parameters of other control circuits. The forecasting method was also used to compare the methods of regulating the flow rate of syrup in the apparatus, which made it possible to predict the behavior of the system during the formation of the control action and display the finished forecast on the operator's screen and, thus, increase the efficiency of the evaporation station. Statistical data on the behavior of the contours of the automation system in different modes of operation using intelligent and classical regulators were collected, a model for predicting the operation of an evaporation station by the method of local tendency was built and a forecasting algorithm was developed. The accuracy of the obtained forecasting model is also evaluated. The accuracy of the forecasting model was 98% for the PID controller, 95% for the neural fuzzy regulator and 96% for the neural network. Conclusions. The model for predicting the operation of the evaporation station is characterized by high accuracy in general, but during the occurrence of oscillations in the transition process, there is an insignificant delay in predicting these fluctuations. The most important in the output of information by the decision-making subsystem is the function of displaying information about the possible changes to the parameters of regulation of other control circuits.
Intensification of the inverted sugar syrup production using the rotor-pulsation processing
(2021) Obodovych, Oleksandr; Shevchenko, Oleksandr; Mironchuk, Valeriy; Lymar, Valerii; Sydorenko, Vitalii; Yakobchuk, Roman
The aim of the work is to intensify the process of inverted sugar syrup production using the treatment of water-sugar solution in a rotor-pulsation apparatus. Materials and methods. The aqueous solutions of chemically pure sucrose were used. The studies were conducted using a rotor-pulsation apparatus in the range of flow shear rates from 20×103 s-1 to 50×103 s-1. Determination of carbohydrate content was carried out by high-performance liquid chromatography (HPLC). Results and discussion. The increase in temperature, processing time, and decrease in pH value at a constant flow shear rate led to an increase of the amount of inverted sugar formed. Complete inversion of sucrose occured at a treatment of sugar solution at temperature of 80 °C, pH 3.0, and a flow shear rate of 20×103 s-1 for 30 minutes. At a flow rate of 50×103 s-1 almost all sucrose was hydrolyzed at pH 3.5, and the duration of the process was just 5 minutes under conditions of five-time processing in the rotor-pulsation apparatus in the circulating mode. In the syrup prepared by the proposed technology at a temperature of 70 °C and the duration of treatment 5 minutes, all sucrose in the solution was inverted, and no traces of hydroxymethylfurfural were detected. It is assumed that critical stresses occur at the site of the sucrose chain, and the chemical covalent bonds are broken. The break of these bonds during the process of mechano-chemical destruction occurs on the weakest in terms of energy bonds. As a result of mechano-chemical influence on the section of the sucrose chain (C – O – C), there are critical stresses and the connection is broken. This leads to the formation of free radicals. One radical attaches to the OH- ion and another to the H+ ion forming glucose and fructose. Conclusions. The use of treatment of water-sugar solution in a rotor-pulsation apparatus by the proposed technology allows to intensify process of sugar inversion, namely, reduces the duration of the inversion from 120 to 5 minutes, and ensures almost complete inversion of sucrose excluding the formation of hydroxymethylfurfural.
Розробка технології водно-спиртових настоїв для закладів ресторанного господарства
(2018) Кузьмін, Олег Володимирович; Очеретна, Альона Василівна; Дідоша, Анна Іванівна; Рагулін, Олександр Дмитрович
Досліджено антиоксидантну активність рослинної сировини у технології водно-спиртових настоїв для закладів ресторанного господарства. The antioxidant activity of plant raw materials in the technology of water-alcohol infusions for restaurants.
Investigation of viscous characteristics of mixtures of ice cream with starch syrup
(2017) Bass, Oksana; Polishchuk, Galyna; Goncharuk, Elena
Встановлено значний вплив ступеня оцукрювання патоки крохмальної на структурно-механічні властивості сумішей для морозива різного хімічного складу. У разі повної заміни цукру на патоки крохмальні HFCS-30 та HFCS-42 початкова ефективна в’язкість сумішей вершкових підвищується на 22,1 та 2,5% відповідно, порівняно з контрольним зразком із цукром. У той же час повна заміна цукру на патоку HFCS-96 сприяє зниженню початкової ефективної в’язкості вершкової суміші на 15,3%. Початкова ефективна в’язкість сумішей для морозива ароматичного при повній заміні цукру на HFCS-30 та HFCS-42 збільшувалася на 27,1% та 14,8% відповідно, та зменшувалася на 11,6% при повній заміні цукру на патоку HFCS-96. Патоки марок HFCS-42 та HFCS-96 надають сумішам тиксотропних властивостей. Натомість, системи з патокою HFCS-30 здатні не тільки повністю відновлювати структуру, але й виявляють слабкі реопексні властивості. Завдяки цьому в режимі зворотного зменшення швидкості зсуву ефективна в’язкість сумішей морозива вершкового та ароматичного, у разі повної заміни цукру, збільшується на 12,7% і на 18,8% відповідно, порівняно з початковими значеннями. У сумішах, що містять суміш паток HFCS-96 та HFCS-30 за співвідношення 30:70, ефективна в’язкість збільшується в режимі зворотного зменшення швидкості зсуву на 9,5 і на 12,5 % для морозива вершкового та ароматичного відповідно, порівняно з початковими значеннями. With complete replacement of sugar for starch syrup HFCS-30 and HFCS-42, the initial effective viscosity of ice cream mixtures increases by 22,1% and 2,5% respectively, compared to the control sample with sugar. As compared to the control sample with sugar. At the same time, complete replacement of sugar on the syrup HFCS-96 contributes to a decrease in the initial effective viscosity of the ice cream mixture by 15,3%. Initial effective viscosity of aromatic ice cream mixtures at full replacement of sugar by HFCS-30 and HFCS-42 increased by 27,1% and 14,8% respectively, and decreased by 11,6% at full replacement of sugar for HFCS-96 syrup. Starch syrups HFCS-42 and HFCS-96 provide mixtures of thixotropic properties. Instead, systems with syrup HFCS-30 can not only completely restore the structure, but also show weak reopectic properties. Due to this, in the mode of inverse reduction of the shear rate, the effective viscosity of the mixtures of ice cream of cream and aromatic, in case of complete replacement of sugar, increases by 12,7% and 18, 8%, respectively, compared with the initial values. In mixtures containing a mixture of HFCS-96 and HFCS-30 patches at a ratio of 30:70, the effective viscosity increases in reverse slip rate by 9,5% and 12,5% for ice cream and aromatic ice cream, respectively, compared to Initial values.
Choosing fruit - berry fillings for condensed сanned milk with sugar
(2014) Ryabokon, Natalia; Rindyuk, Dmitry
The rheological and organoleptic properties of condensed canned milk with sugar and fruit fillings were determined. The syrups’ and jams’ usage in the technology of condensed canned milk with sugar reduces the viscosity of finished products and increase the length of the structures destruction in products with fruit jam. We studied the impact of fruit-berry jam on the indicators of conditional dynamic threshold fluidity and fluidity ratio of condensed canned milk with sugar and the possibility of losing the product’s fluidity during storage. In the CCM recipes with sugar and fruit - berry fillings, the preference should be given to fruit-berry syrup.
Sucrose cooling crystallization modeling
(2013) Mironchuk, Valeriy; Yeshchenko, Oksana; Samilyk, Marina
Based on the material balance equations and understanding of the final-grade massecuite cooling crystallization process as the technology object, a simulation model of the process has been built by which the computational experiments have the computational experiments. By results of these experiments, analytical exponential dependences of the massecuite characteristics change during cooling crystallization have been obtained, namely, grain content, weight, purity and dry solids weight ratio of massecuite syrup. The constructed model has been used to study the industrial cooling crystallization process. It is proved that the results of the experiment of the developed simulation model fully reflect the nature of the industrial process of final-grade massecuite cooling crystallization of sucrose. Typical scheme industrial cooling crystallization with massecuite water or impure sugar solution dilution and authors’ scheme with an intermediate heat massecuite have been considered. It’s experimentally shown that the use of final-grade massecuite intermediate heating after cooling to 50-52 ºC by 7-10 ºC increases the effect of crystallization to 8.4% by reducing the viscosity of massecuite syrup, the surface tension and alignment of the massecuite cooling rate at sucrose crystalization rate. Consequently, the exclusion of dilution of massecuite by water or impure sugar solution and its replacement by intermediate heating provides a more complete depletion of molasses and increases the amount sugar grains in the massecuite.
Анализ процесса уваривания сахарных утфелей на основе имитационного моделирования
(2013) Мирончук, Валерий Григорьевич; Ещенко, Оксана Анатольевна
Построена имитационная модель процесса уваривания утфелей, проведены вычислительные эксперименты, в результате которых получены экспоненциальные аналитические зависимости изменения технологических и массовых характеристик в процессе уваривания сахарных утфелей и установлена общность между коэффициентами аналитических закономерностей изменения технологических характеристик. The simulation models of boiling massecuite have been worked out and conducted computational experiments, in which exponential analytical expressions technological and mass characteristics in the process of boiling sugar massecuite have been obtained and communion between the coefficients of analytic patterns of technological change characteristics have been set.
К вопросу качества мелассы свеклосахарного производства
(1988) Белостоцкий, Леонид Георгиевич; Супрунчук, Вера Васильевна; Старушенко, Л. П.; Катроха, Ж. И.; Шаталова, Н. А.; Левандовский, Леонид Викторович
Экспериментально установлен состав промежуточных продуктов по всем стадиям свеклосахарного производства. Полученная в условиях соблюдения оптимальних режимов технологии меласса может еффективно быть переработана на спирт и другие продукты. Experimentally established the composition of intermediate products in all stages of the sugar industry. Obtained in compliance with optimum regimes of technology a molasses can be efficiency reworked into alcohol and other products.
Изменение качества очищенного сиропа в процессе хранения
(1990) Штангеева, Надежда Ивановна; Клименко, Лариса Степановна; Богомол, Владимир Анатольевич
Представлены результаты исследований качественных показателей очищенного сиропа в процессе хранения. Определены оптимальные условия хранения сиропа, характер изменеия красящих веществ. Допустимый срок хранения сиропа составил 7 месяцев без ухудшения его качества. The results of studies of quality indicators purified syrup during storage. Optimum storage conditions syrup character changes coloring substances. Acceptable shelf life syrup is 7 months without deterioration of its quality.
Очищення сиропу бурякоцукрового виробництва з застосуванням катіонного поліелектроліту та целюлози
(2011) Штангеєва, Надія Іванівна; Савич, Анатолій Никифорович; Молодницька, Олена Миколаївна; Гусятинська, Наталія Альфредівна; Клименко, Лариса Степанівна
В статті розглянуто проблему очищення сиропу бурякоцукрового виробництва. Досліджено дію полігексаметиленгуанідину гідрохлориду (ПГМГХ) на ефективність очищення сиропу після ІІІ корпусу випарної установки. Показано ефективність розробленого способу очищення сиропу бурякоцукрового виробництва з використанням ПГМГХ та сорбційно-активної целюлози марки DIACEL 150-1. Розроблений спосіб дозволяє підвищити ефект знебарвлення до 47 % та чистоту сиропу при цьому на 0,9—1,8 од.

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