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Electrostatic/Electromagnetic Bio-Filter for Airborne Contaminant Disinfection Based on initial design by Dr. Adel M. S

Electrostatic/Electromagnetic Bio-Filter for Airborne Contaminant Disinfection Based on initial design by Dr. Adel M. Sharaf. by Jason Perry Supervisor: Dr. Adel M. Sharaf. Summary. Background Methodology Electrostatic Method Electromagnetic Method Work Completed Work Remaining.

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Electrostatic/Electromagnetic Bio-Filter for Airborne Contaminant Disinfection Based on initial design by Dr. Adel M. S

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  1. Electrostatic/Electromagnetic Bio-Filter for Airborne Contaminant DisinfectionBased on initial design by Dr. Adel M. Sharaf by Jason Perry Supervisor: Dr. Adel M. Sharaf

  2. Summary • Background • Methodology • Electrostatic Method • Electromagnetic Method • Work Completed • Work Remaining April 1st, 2004 Slide 1/14

  3. Background • Reasons for This Project • growing concern for indoor air quality (e.g. mold, smoke) • allergies, asthma, other respiratory problems • disease control • threat of biological terrorism, (e.g. Anthrax) April 1st, 2004 Slide 2/14

  4. Background • Goal of the Project • Design and construct a bio-filter using the combined orthogonal electromagnetic and electrostatic principles developed by Dr. Adel M. Sharaf for his Portable Water Germicidal Unit. (Patent Pending) April 1st, 2004 Slide 3/14

  5. Background HPAC Engineering , January 2002 (http://www.arche.psu.edu/iec/abe/pubs/foam.pdf) April 1st, 2004 Slide 4/14

  6. Methodology • Electrostatic Component • Process commonly referred to as “Electrostatic Precipitation” or “Electronic Air Cleaning” • 2-stage process; charging stage and collection stage • Effective in filtering particles form .01 to 10 microns • Process consumes relatively low power April 1st, 2004 Slide 5/14

  7. Methodology April 1st, 2004 Slide 6/14

  8. Methodology • Airborne molecules collide with negative ions April 1st, 2004 Slide 6/14

  9. Methodology • Airborne molecules acquire a negative net charge and collect on the positively charged plate April 1st, 2004 Slide 6/14

  10. Methodology • Electromagnetic Component • FDA study in 2000 demonstrated that many microorgansims could be destroyed by an Oscillating or Pulsed Magnetic Field. • Depends on frequency, magnetic field strength, and number of pulses. • Pulsed magnetic fields will be generated using electromagnetic coils. April 1st, 2004 Slide 7/14

  11. Methodology B • Leading theory states that a PMF can loosen the covalent bonds between ions and proteins in microorganisms. • Ions move in a circular path when entering a perpendicular magnetic field. • The motion causes the protein molecules and ions to oscillate and eventually break the covalent bonds that bind them. April 1st, 2004 Slide 8/14

  12. Methodology Initial Design (DESIGNED BY DR. ADELM. SHARAF) April 1st, 2004 Slide 9/14

  13. Methodology Initial Design (DESIGNED BY DR. ADELM. SHARAF) April 1st, 2004 Slide 9/14

  14. Methodology B • E = V/d • E is a function of the Electric Potential divided by the distance between the plates. E Orthogonal Electric and Magnetic Fields April 1st, 2004 Slide 10/14

  15. Methodology Cross-section of a finite solenoid Magnetic flux density along the axis of finitely long solenoid. Inductance of a solenoid April 1st, 2004 Slide 11/14

  16. Methodology • Quickfield Simulations • 2-D finite element analysis program (free student edition) • Electrostatic simulations based on Poisson’s Equation • Magnetic simulations are based on vector Poisson’s Equation April 1st, 2004 Slide 12/14

  17. Work Completed • Researched several methods of airborne filtration and disinfection including electrostatic and electromagnetic methods. • Simulated magnetic and electric field strengths of the design elements using Quickfield software. • Initiated the design of dual frequency triggering circuits for electromagnetic coils. April 1st, 2004 Slide 13/14

  18. Work Remaining • Complete simulations to determine selection of ferrite cores, and placement of field intensifier material. • Design of High Voltage Source ( Cockroft-Walton Voltage Multiplier Circuit.) • Construction of the prototype. • Testing (possibly at NRC or RPC testing facilities.) April 1st, 2004 Slide 14/14

  19. References • 1.)    Hofmann, G.A. 1985. Deactivation of microorganisms by an oscillating magnetic field. U.S. Patent 4,524,079. • 2.)    Moore, R.L. 1979. Biological effects of magnetic fields. Studies with microorganisms. Can. J. Microbiol., 25:1145-1151. • 3.)    Kinetics of Microbial Inactivation for Alternative Food Processing Technologies . U. S. Food and Drug Administration. Available: URL http://vm.cfsan.fda.gov/~comm/ift-omf.html. Last accessed 10 February 2004 • 4.)    Gary Wade and Rifetech. (1998). EXCITING POSSIBILITIES IN PULSED INTENSE MAGNETIC FIELD THERAPY. Rife Healing Energy. Available: URL http://vm.cfsan.fda.gov/~comm/ift-omf.html. Last accessed 10 February 2004. • 5.)    Aerobiological Engineering: Electrostatic Precipitation. The Pennsylvania State University Aerobiological Engineering. Available: URL http://www.arche.psu.edu/iec/abe/electro.html. Last accessed 10 February 2004. • 6.)    What is an Ionizer. What is an Ionizer. Available: URL http://www.ionizer.com.my/What_is_ionizer.htm. Last accessed 10 February 2004.

  20. QUESTIONS ??

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