This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Nano-Fiber Filters for Automotive Applications
Technical Paper
2018-28-0041
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Engines have well lubricated metallic moving parts protected by oil films. Microscopic airborne particles can easily break down the oil film and change the tight working tolerances of operating components of an engine. In addition to the above requirement, a modern diesel engine requires a highly precise injection system to meet stringent emission norms and it requires an average of 15,000 L of air per unit fuel consumed. Meticulous filtration is key to ensure purity of air and fuel available to engine. A Polyacrylonitrile based nanofiber synthesized using electro-spinning process is an alternative to conventional cellulose media filters. A Scanning Electron Microscope image is analyzed to obtain the fiber diameter and a 2-D modeling is done using this image data. The trend of developing miniaturized model in filtration application and analysis using computational fluid dynamics has limited research till now. The objectives of the paper are to analyze variation of pressure drop and quality factor for automotive filtration applications. Pressure drops across the single layer of nano-fiber filter, conventional fuel filter and double layer nano-fiber filter are calculated by Ansys fluent analysis. Electro-spun nanofiber filter can separate large number of particles which is beneficial for the longer lifecycle and higher performance of an engine. A single layer polyacrylonitrile nanofiber filter is found to have minimum pressure drop resulting in higher quality factor for filtration applications. As the number of layers of nanofiber increases the pressure drop observed is higher compared to conventional filter.
Recommended Content
Authors
Topic
Citation
Malviya, R., Puthumana, B., and Hari, A., "Nano-Fiber Filters for Automotive Applications," SAE Technical Paper 2018-28-0041, 2018, https://doi.org/10.4271/2018-28-0041.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 |
Also In
References
- Linak , W.P. et al. On Trimodal Particle Size Distributions in Fly Ash from Pulverized-Coal Combustion Proceedings of the Combustion Institute 29 1 441 447 2002
- Aroussi , A. , Simmons , K. , and Pickering , S.J. Particulate Deposition on Candle Filters Fuel 80 3 335 343 2001
- Yu , D.X. et al. Physicochemical Properties and Potential Health Effects of Nanoparticles from Pulverized Coal Combustion Chinese Science Bulletin 54 7 1243 1250 2009
- Donaldson , K. et al. Combustion-Derived Nanoparticles: A Review of their Toxicology Following Inhalation Exposure Particle and Fibre Toxicology 2 1 10 2005
- Hung , C.-H. and Leung , W.W.-F. Filtration of Nano-Aerosol Using Nanofiber Filter under Low Peclet Number and Transitional Flow Regime Separation and Purification Technology 79 1 34 42 2011
- Yoon , K. , Hsiao , B.S. , and Chu , B. Functional Nanofibers for Environmental Applications Journal of Materials Chemistry 18 44 5326 5334 2008
- Givehchi , R. and Tan , Z. An Overview of Airborne Nanoparticle Filtration and Thermal Rebound Theory Aerosol and Air Quality Research 14 1 45 63 2014
- Podgórski , A. , Bałazy , A. , and Gradoń , L. Application of Nanofibers to Improve the Filtration Efficiency of the Most Penetrating Aerosol Particles in Fibrous Filters Chemical Engineering Science 61 20 6804 6815 2006
- Bahk , Y.K. and Wang , J. Filtration and Length Determination of Airborne Carbon Nanotubes in the Submicrometer Range Using Nanofiber Filters Aerosol and Air Quality Research 14 5 1352 1359 2014
- George , J. American Filtration & Separation Society Annual Conference 2007
- Reneker , D.H. et al. Electrospinning of Nanofibers from Polymer Solutions and Melts Advances in Applied Mechanics 41 343 346 2007
- Bhardwaj , N. and Kundu , S.C. Electrospinning: A Fascinating Fiber Fabrication Technique Biotechnology Advances 28 3 325 347 2010
- Baji , A. et al. Electrospinning of Polymer Nanofibers: Effects on Oriented Morphology, Structures and Tensile Properties Composites Science and Technology 70 5 703 718 2010
- Natarajan , R. , Kapoor , R. , and Tiwari , M. Performance Characterization of Nanofibers on Fuel Filtration Media in Automotive Filters SAE Int. J. Mater. Manf. 1 1 465 471 2008 10.4271/2008-01-1051
- Reneker , D.H. and Chun , I. Nanometre Diameter Fibres of Polymer, Produced by Electrospinning Nanotechnology 7 3 216 1996
- Şener , A.G. , Altay , A.S. , and Altay , F. Effect of Voltage on Morphology of Electrospun Nanofibers Electrical and Electronics Engineering (ELECO), 2011 7th International Conference on 2011
- Chase , G.G. Improved Microfiber Filter Performance by Augmentation with Nanofibers SAE Technical Paper 2007-01-1432 2007 10.4271/2007-01-1432
- Natarajan , R. , Kapoor , R. , and Ghadi , U. Stability and Characterization of Nanofibers on Liquid Filtration Media in Automotive Filters SAE Technical Paper 2008-28-0039 2008 10.4271/2008-28-0039
- Wang , J. , Kim , S.C. , and Pui , D.Y.H. Figure of Merit of Composite Filters with Micrometer and Nanometer Fibers Aerosol Science and Technology 42 9 722 728 2008
- Tronville , P. CFD Simulation on Nanofiber Enhanced Filter Media Brazil Universidade Federal de Sao carlos
- Graham , K. , et al. Polymeric Nanofibers in Air Filtration Applications Fifteenth Annual Technical Conference & Expo of the American Filtration & Separations Society , Galveston, TX 2002
- Bahrami , M. , Yovanovich , M.M. , and Culham , J.R. Pressure Drop of Fully Developed, Laminar Flow in Rough Microtubes Journal of Fluids Engineering 128 3 632 637 2006
- Morini , G.L. Laminar-To-Turbulent Flow Transition in Microchannels Microscale Thermophysical Engineering 8 1 15 30 2004
- Wu , H.Y. and Cheng , P. Friction Factors in Smooth Trapezoidal Silicon Microchannels with Different Aspect Ratios International Journal of Heat and Mass Transfer 46 14 2519 2525 2003
- Yamane , A. et al. Development of High Ductility and Tensile Properties upon two-Stage Draw of Ultrahigh Molecular Weight Poly (Acrylonitrile) Macromolecules 30 14 4170 4178 1997
- Bao , L. et al. Verification of Slip Flow in Nanofiber Filter Media through Pressure Drop Measurement at Low-Pressure Conditions Separation and Purification Technology 159 100 107 2016
- Lee , S. et al. Structural Evolution of Polyacrylonitrile Fibers in Stabilization and Carbonization Advances in Chemical Engineering and Science 2 02 275 2012