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Simulation Study on the Impact of Porous Media Microstructure on Gasoline Particulate Filter Performance School of Intelligent Manufacturing, Panzhihua University
- Format:
- Book
- Conference/Event
- Author/Creator:
- Xiong, Xianyang, author.
- Qing, Ze, author.
- Zhang, Jian, author.
- Li, Ting, author.
- Conference Name:
- 2025 2nd International Conference on Sustainable Development and Energy Resources (SDER 2025) (2025-08-01 : Shenzhen, China)
- Language:
- English
- Subjects (All):
- Particulate filters.
- Environmental law.
- Pressure.
- Gasoline.
- Logistics.
- Research and development.
- Local Subjects:
- Particulate filters.
- Environmental law.
- Pressure.
- Gasoline.
- Logistics.
- Research and development.
- Physical Description:
- 1 online resource
- Place of Publication:
- Warrendale, PA SAE International 2026
- Summary:
- Stricter environmental legislation is driving ever-more-demanding performance targets for gasoline particulate filters (GPFs). This study constructs a multi-scale filtration model based on fractal characteristics, taking into account particle size distribution and particle deposition, to investigate the influence of the microstructure of porous media on GPF performance and analyze the impact of structural parameters on capture efficiency and pressure drop. The results show that: (1) Increasing the wall thickness can improve the capture efficiency and pressure drop, and a thicker wall has a stronger inertial interception capacity for larger particles. (2) A reduction in porosity markedly alters both filtration efficacy and flow pressure drop. For particles in the intermediate size range (0.1-0.5 μm), the capture efficiency of a low-porosity structure is more sensitive to the diffusion deposition of small particles, while the inertial collision efficiency of large particles is higher. (3) Shrinking the pore size markedly enhances capture efficiency while simultaneously increasing pressure drop; the finer pore network markedly improves the retention of sub-micron particles, but the passage restriction of large particles is more obvious
- Notes:
- Vendor supplied data
- Access Restriction:
- Restricted for use by site license
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