Search academic texts

Information × Registration Number 0221U106933, 0121U111865 , R & D reports Title Improving the energy efficiency of heat and mass transfer processes during dehydration of thermolabile colloidal capillary-porous materials in innovative heat pump dryers popup.stage_title Head Slobodianiuk Kateryna S., Кандидат технічних наук Registration Date 22-12-2021 Organization Institute of Engineering Thermophysics of NAS of Ukraine popup.description2  Research report: 50 pp., 22 figs., 59 sources. Object of study - heat and mass transfer processes during drying of thermolabile colloidal capillary-porous materials (vegetable raw materials) and their composite mixtures. The purpose of the first stage of the research project is to increase heat and mass transfer during convective drying of thermolabile colloidal capillary-porous materials in an upgraded heat pump dryer. The technology of preliminary preparation for drying of thermolabile colloidal capillary-porous materials (antioxidant and phytoestrogenic raw materials) was developed, which allowed to increase the energy efficiency of the process. The effect of organic acids of vegetable raw materials on the cell membrane of table beets was studied for the first time, which made it possible to develop energy-efficient preliminary preparation for drying of antioxidant composition based on table beets befor drying. Energy costs are reduced to 10-15% of total energy consumption by replacing the hydrothermal treatment of raw materials with its blending. Preliminary preparation of phytoestrogenic raw materials for drying has been improved, energy consumption has been reduced by 20-25%. Rational energy-saving (intensifying) parameters of the dehydration regime of thermolabile colloidal capillary-porous materials (antioxidant and phytoestrogenic raw materials) with maximum preservation of high quality indicators of the dried material have been experimentally determined. Energy-efficient drying regimes have been developed: antioxidant raw materials, which intensify the dehydration process by 50% with a maximum conservation of 95% betanin, and intensify the dehydration process of phytoestrogenic raw materials by 21% without critical changes in the acid number responsible for the quality of oily products. Scope - heat-energy. Key words: thermolabile colloidal capillary-porous materials, heat and mass transfer, convective drying, energy efficiency, heat-technologies. Product Description popup.authors Vishnevska Tetiana A Novykova Yulyia P. Samoilenko Kateryna Mykolaivna Slobodianiuk Kateryna S. popup.nrat_date 2021-12-22 Close