Mathematical models of operating modes of extractors with microwave heating
DOI:
https://doi.org/10.31548/energiya2018.05.183Abstract
The main technology for the extraction of oil substances from oil-containing raw materials (rapeseed, soya, sunflower seeds, etc.) is the use of the pressing process. As a consequence, the resulting scotch contains a significant amount of oil, which can be removed only by extraction.
Extraction of valuable components from vegetable oilseeds relates to important processes, the increase of which has a decisive influence on the technical and economic indicators of the processing industry of agro-industrial production. At the present stage of the development of technology and extraction technology of oilseeds, the recognition of the potential of microwave technology is deserving of recognition: the use of ultra high frequency electromagnetic field (UHF) to intensify and increase the efficiency of traditional production of oils and obtain products with new, better consumer qualities.
The purpose of the study is the theoretical determination of the influence of the EMF of the microwave on the extraction process on the basis of improved mathematical models.
In the article theoretically proved processes of extraction of oilseed raw materials in extractors with microwave energy supply, namely, the effect of EMF of microwave on processes of heat and mass transfer in the liquid and solid phase of a substance.
The approximate solutions of the aforementioned theoretical mathematical models are used to identify the processes of mass transfer in extractors with microwave heat supply for further determination of optimal modes of operation of the devices in terms of energy saving and quality of the final product.
Key words: extraction, electromagnetic field, mass transfer, oilseed material
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