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Information × Registration Number 0221U106685, 0117U002650 , R & D reports Title Scientific principles of enhancement of energy efficiency of heat technologies at dehydration of colloidal capillary-porous materials popup.stage_title Head Snyezhkin Yurii F., Доктор технічних наук Registration Date 17-12-2021 Organization Institute of Engineering Thermophysics of NAS of Ukraine popup.description2 Physical and mathematical models of heat and mass transfer in the conditions of high-temperature drying of polyfractional one-component or composite mixture of biofuels are developed. Energy-efficient designs of dryers with the combined movement of the drying agent and adjustment of the angle of the drum are proposed, which reduce the specific energy consumption by up to 20%. For the first time, the effect of the degree of hydration on the specific heat of evaporation was experimentally detected by measuring the heat of evaporation of water from sucrose solutions. Thermal and X-ray phase analysis confirmed that dry sugar-containing products are natural mixtures of biopolymers and sugars in the crystalline and amorphous state. It was first established that the formation of crystalline phases depends on the rate of dehydration and preparation of raw materials for drying. The thermal stability of a wide range of fruits and vegetables is determined. This is necessary to determine the drying modes. Thermal decomposition of vegetable raw materials has been studied. Its parameters can be used in technologies for biofuels. Ways to intensify the process of convective dehydration of starch-containing products are established. Resource-saving ecologically safe heat technology for fruit and vegetable chips has been developed. It is based on the method of high-speed drying. As a result of research of adsorption properties of fruit and vegetable monopowders, functional powders and dry instant products based on them, their equilibrium moisture was determined, which allowed to recommend rational storage conditions. The mathematical model for calculating energy consumption for dehydration of the heating medium is developed to optimize the process of heat pump drying. Energy-efficient drying regimes for plant materials with a variable degree of drying agent have been developed. This allows to reduce the specific energy consumption for drying by 1.5-2 times. Product Description popup.authors Iliushyna Larysa I. Bileka Borys D. Vishnevska Tetiana A. Vishnevsky Vitaly M. Grakov Dmytro P. Grakov Oleksii P. Husarova Olena V. Dabizha Nataliіa O. Dakhnenko Valerii L. Dmytrenko Nataliya V. Kovalova Valentyna M. Korinchevska Tetiana V. Korinchuk Dmytro Mykolayovych Malashchuk Nataliia S. Mykhailyk Viacheslav A. Novikova Yuliia P. Paziuk Vadym Mykhailovych Petrov Anton I. Petrova Zhanna O. Plokhotniuk Larysa V. Samoilenko Kateryna Mykolaivna Serbeniuk Svytlana M. Slobodianiuk Kateryna S. Ulanov Mykhailo M. Shapar Raisa O. popup.nrat_date 2021-12-17 Close