CURRENT STATE OF USING CAVITATION TECHNOLOGIES (BRIEF OVERVIEW)

Autor: Alexander Yu. Radzyuk, Elena B. Istyagina, Ludmila V. Kulagina, Andrey V. Zhuikov
Jazyk: ruština
Rok vydání: 2022
Předmět:
Zdroj: Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 333, Iss 9, Pp 209-218 (2022)
Druh dokumentu: article
ISSN: 24131830
2500-1019
2413-1830
DOI: 10.18799/24131830/2022/9/3623
Popis: The relevance. There are known examples of obtaining homogeneous fluids based on coals, petroleum products, asbestos, cement and other georesources using the effects of hydrodynamic cavitation. The efficiency of cavitation treatment of multiphase media depends on many factors, such as the type of cavitation (acoustic and hydrodynamic), the composition of the treated medium, flow regime, temperature, pressure, viscosity and many others. A variety of ways of application of cavitation technologies does not allow developing unified approaches to assessment of their efficiency, in this regard, their comparison on the basis of individual criteria for each technological process acquires relevance. The main aim of the research is to make conclusions about which of the used methods of cavitation treatment have the greatest efficiency in changing the technological parameters of the processed media on the basis of the analysis and summaries of the current state of using cavitation technologies in thermal power engineering, chemical and oil industries, nuclear power, etc. Objects: technologies, devices and apparatuses in which during dispersion, emulsification, homogenization, purification, etc., there are modes of flow of treated media accompanied by cavitation phenomena. Methods: analysis of information on the application of cavitation technologies given in publications over the past five years in journals indexed in the international databases Web of Science and Scopus. Results. The paper introduces the analysis of literary sources in the field of cavitation technologies. The main results of works on cavitation treatment of various liquid compositions obtained by the authors of the articles are presented. Mechanisms of cavitation influence, application of cavitation technologies in various branches, actual methods and means of studying cavitation phenomena are considered. Conclusions about the main advantages and disadvantages of using cavitation technology as an element of technological processing are made. It is shown that the most effective is the impact on the processed media by hydrodynamic cavitation.
Databáze: Directory of Open Access Journals
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