Design optimisation of air filters using ANSYS fluent

Abstract

This paper is based on the current status of research and development in the high performance air filters segment. This can be done by choosing an appropriate filter and operating it under optimized conditions. The present paper details the applicability of filters used in conjunction with metal screen for the purpose of classifying aerosol. In this paper, the analysis on applicability of centrifugal force for achieving enhanced collection efficiency without increasing the pressure drop has also been done. This paper endorses the proposition that the quality of air filters can be improved remarkably and suggests a methodology for achieving the same. The Hepa filter can capture with extraordinary efficiency of 0.01 ×10 -9 meter sized particles. The size of the Corona Virus Covid-19 is 125 nm. The preliminary study shows that covid-19 can become aerosolized and can remain in the air for hours. After analysis, the flow rate has been increased from an initial value of 21 E 4 m 3/s ( thickness 0.15 mm) to the optimized value of 92E4 m 3/s (thickness 0.91 mm) which is a significant increase of 338% i.e. 3.38 times from initial value. For optimizing the material porosity, it has been found that the filter shows the maximum performance at a porosity value of 0.95.