Investigation of pleated air filters: effects of various shapes and design parameters on flow patterns and pressure drop

Air filters with pleats of different shapes present intricate manufacturing complications and flow patterns that pose a significant computational challenge. These pleated filters are primarily employed to enhance filtration area and dust-removing efficiency, as the volume of fine particulate matter...

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Bibliographic Details
Published in:International journal on interactive design and manufacturing 2024-09, Vol.18 (7), p.5057-5075
Main Authors: Shukla, Anuj Kumar, Kumar, Abhishek, Kumar, Rajesh, Ranjan, Pritanshu
Format: Article
Language:English
Subjects:
Air filters
Air pollution
Automobile industry
CAE) and Design
Computer-Aided Engineering (CAD
Cost control
Design parameters
Diesel engines
Dust
Dust filters
Efficiency
Electronics and Microelectronics
Engineering
Engineering Design
Flow distribution
Industrial Design
Instrumentation
Life expectancy
Manufacturing
Mechanical Engineering
Numerical analysis
Optimization techniques
Original Paper
Outdoor air quality
Permeability
Pollutants
Pressure drop
Pressure effects
Research methodology
Scale models
Simulation
Sine waves
Thickness
Turbulence models
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Summary:Air filters with pleats of different shapes present intricate manufacturing complications and flow patterns that pose a significant computational challenge. These pleated filters are primarily employed to enhance filtration area and dust-removing efficiency, as the volume of fine particulate matter in the atmosphere continues to escalate. This study examines diverse pleat shapes, such as U-shaped, semi-triangular, triangular, and sine wave triangular pleats, and investigates the effects of different design parameters, including pitch, height, thickness, angle, and amplitude of the pleat at varying inflow velocities. The simulation results using the RNG k-ϵ turbulence model have been compared to the previously documented experimental data and found to be in close agreement, within the inlet velocity range of 0.5–4.5 m/s. The study revealed that the pressure drop across the filter is influenced by both the pleat shapes and design parameters. In comparison to U-shaped, semi-triangular, and triangular pleats, the pressure drop values in rectangular-type pleats are higher by approximately 10%, 42%, and 100%, respectively, for a unit height of pleat and filter medium thickness. Among all the pleats examined, sine wave-type triangular pleats had the lowest pressure drop value. These results can provide valuable insights to industries involved in clean-air environments and automobiles.
ISSN:1955-2513
1955-2505
DOI:10.1007/s12008-023-01523-1