Combined (2d – 3d) numerical study of the efficiency of air filtering and conditioning systems (AFCS)

Abstract

The study explores the potential for reducing the energy and material intensity of urban systems that supply residential, public and industrial facilities with heat, electricity and gas. It demonstrates that these improvements contribute significantly to addressing global challenges related to maintaining an acceptable climate on the planet. While the bulk of energy generation relies on organic fuels, increasing the energy efficiency of urban energy supply systems by 3% is equivalent to a 1% reduction in production-related carbon emissions. One of the large and materialintensive devices used in energy generation, gas distribution, and in the chemical and food industries, as well as in various municipal enterprises, is the air filtering and conditioning system (AFCS). In recent decades, the influx of numerous varieties of filters from foreign companies into the Russian market has led to the development of AFCS designs featuring porous filters at both stages of purification, while cyclone stages have been relegated to the category of obsolete and imperfect technology. It is shown that the cyclone stages in AFCSs possess sufficient potential for improving cleaning efficiency and can substantially reduce the dimensions and material consumption of air cleaning systems. A combined (2D – 3D) method for numerical study of cyclone element blocks is proposed, simplifying the research process and reducing resource consumption. A numerical model of a cyclone element with a filter insert has been created and tested, demonstrating the capability of air filtering and conditioning systems of this type to achieve filtration classes E7 and higher.