Electrostatic Charging and Electrets for Air Filter Media

Electrostatic Charging and Electrets for Air Filter Media, .4 CEUs,
Peter Tsai , instructor

March 22, 2010
8 AM - 12 PM
Grand Hyatt
San Antonio, TX

Registration Rates

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1.   Electrostatic Charging Methods and the Improvement of Filtration Efficiency
      - Corona charging theory
      - Corona charging techniques
      - Triboelectrification
      - Polarization
      - Induction
      - Liquid contact charging

2.   Requirements of Electrical Properties of a Material to Make an Electret

3.   Electrical Characterization of Electret
      - Surface charge potential measurement
      - Net charge measurement
      - Charge decay phenomena and thermally stimulated charge decay (TSCD)

4.   Particle Capturing of an Electret
      - Particles carry charges
      - Particles do not carry charges

5.   Properties of Electrets by Particle Loading
      - Caking phenomena and the increase of pressure drop by solid particle loading
      - Blocking phenomena and the increase of pressure drop by liquid particle loading
      - Degradation of filtration efficiency by oily particle loading

6.   Effect of Fabric Defects on the Degradation of a Filter media
      - Effect of fiber diameter and fiber diameter distribution
      - Effect of local fiber diameter distribution
      - Effect of variation of thickness or basis weight
      - Effect of pinholes
      - Effect of roping
      - Effect of packing density

About the instructor: 

Dr. Peter Tsai is a senior faculty at the Textiles and Nonwovens Development Center (TANDEC) at the University of Tennessee. He has extensive industrial as well as academic experiences.  He has investigated the nonwoven processes to make fibrous filter media for 20 years and developed theories, technologies, and computer programs to improve the nonwoven processes and the product qualities of filter media. He developed several powerful electrostatic charging technologies that greatly improved more than 10-fold filtration efficiency of a filter medium. These charging technologies have been licensed to over 30 companies worldwide. His expertise also includes designs and constructions of the media chargers and industrial meltblown lines.  

Dr. Tsai is well recognize in his fields and has had numerous invitations as visiting professors by overseas universities, has been teaching filtration short courses to TAPPI, Asian Filtration and Separation conferences and industrial companies all over the world in the past 20 years.

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****Members of AFS receive a $150 discount for each short course they take.

These discounts are for each short course. If you attend two half day courses, the discount is applied to each course. It pays to be a member.

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