ЗАСТОСУВАННЯ ПУЛЬСАЦІЙНОГО ДИСПЕРГАТОРА ЯК ГІДРОДИНАМІЧНОГО КАВІТАЦІЙНОГО РЕАКТОРА ДЛЯ ГОТУВАННЯ ВОДОВУГІЛЬНОГО ПАЛИВА

• Дата: 2023
• Автори: Nedbailo, A.E., Ivanytsky, G.K, Tselen, B. Ya., Radchenko, N.L., Gozhenko, L.P., Shchepkin, V.I.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Institute of Engineering Thermophysics of NAS of Ukraine 2023
• Онлайн доступ: https://ihe.nas.gov.ua/index.php/journal/article/view/521
• Назва журналу: Thermophysics and Thermal Power Engineering

A brief review of modern technologies for the production and use of coal-water fuel (CWF) is carried out. The trend of creating innovative technologies for the production of coal-water suspensions using hydrodynamic cavitation methods was noted. Varieties of rotary-type cavitation reactors, which are used for wet grinding of coal and the creation of finely dispersed CWF, were considered, and the advantages and disadvantages of such devices were noted. On the basis of the conducted analysis, a new type of cavitation reactor for the production of CWF, created with the participation of the authors, is proposed. It is a double-membrane hydrodynamic pulsation disperser, equipped with a Venturi nozzle, which allows achieving the high level of cavitation effects in the treatment of coal-water suspensions. The method of conducting laboratory studies on the production of CWF on the basis of the hydrodynamic pulsation apparatus and the applied measuring devices are considered. The article presents the results of an experimental study of the obtained water-coal suspensions properties, which depend on the mass concentration and processing time. The influence of these parameters on the quality characteristics of the product, such as the size distribution of coal dispersions, dynamic viscosity, stability, and also on the pH value, was determined. The CWF rheological and stable properties have been found to depend on the concentration of the suspension and the processing duration. The results of the research can be used for the practical implementation of technologies for the production of hydrocarbon fuels for further use in thermal power plants.