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. 2024 Oct 11;17(20):4969.
doi: 10.3390/ma17204969.

Modeling the Geometry and Filter Composite of the Air Cleaner

Pola Kalina Olszewska  1 , Justyna Pinkos  1 , Dominik Borkowski  2 , Maciej Jablonski  1
Affiliations

Modeling the Geometry and Filter Composite of the Air Cleaner

Pola Kalina Olszewska et al. Materials (Basel). .

Abstract

Air pollution is currently the most significant environmental factor posing a threat to the health and lives of European residents. It is a key cause of poor health, particularly respiratory and cardiovascular diseases. The primary aim of the study was to numerically determine the impact of the air purifier model's geometry on the distribution of air within a room and to conduct experimental tests on the filtration efficiency and preliminary antibacterial activity of filtration composites. The scope of the work included designing an air purifier model in the form of a pendant lamp and performing computer simulations in Ansys software to identify the optimal shape. The experimental research focused on developing filtration composites consisting of nonwoven fabric with an active hydrosol layer, meltblown nonwovens and a carbon filter. The study results showed that the SMMS composite with 50% thyme and carbon nonwoven exhibited the highest filtration efficiency for both small and large particles.

Keywords: air purifier; computer simulations; filter component; hydrosol.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Elements of the geometric model of the air purifier.
Figure 2
Figure 2
Variants of geometric models: (a) first, (b) second, (c) third, (d) fourth.
Figure 3
Figure 3
View of the cross-sectional plane for air velocity (a) and velocity vectors (b) for variant one.
Figure 4
Figure 4
View of the cross-sectional plane for air velocity (a) and velocity vectors (b) for variant two.
Figure 5
Figure 5
View of the cross-sectional plane for air velocity (a) and velocity vectors (b) for variant three.
Figure 6
Figure 6
View of the cross-sectional plane for air velocity (a) and velocity vectors (b) for the fourth variant.
Figure 7
Figure 7
Final geometric model of the lampshade.
Figure 8
Figure 8
View of the cross-sectional plane for air velocity (a) and velocity vectors (b) for the final variant.
Figure 9
Figure 9
Laboratory station for spunbonded nonwoven fabric forming.
Figure 10
Figure 10
Spunbonded nonwoven fabric with PBS.
Figure 11
Figure 11
GRIMM test apparatus Type 7700 for testing the effectiveness of filter materials.
Figure 12
Figure 12
Sample before treatment (left side) and sample after treatment (right side).
Figure 13
Figure 13
Graph of the average filtration efficiency of meltblown nonwoven fabric as a function of individual particle sizes.
Figure 14
Figure 14
Filtration efficiency graph for SMS-type filtration composites as a function of particle size.
Figure 15
Figure 15
Filtration efficiency graph for the SMS-type filtration composite with an additional carbon fiber layer as a function of particle size.
Figure 16
Figure 16
Filtration efficiency graph for the SMMS-type filtration composite with an additional carbon fiber layer as a function of particle size.
See this image and copyright information in PMC

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