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NAFA 2011 Williamsburg, VA

NAFA 2011 Williamsburg, VA. Ultraviolet Energy Presented by Sam Guzman American Ultraviolet Company. NAFA 2011. Basic explanation of UV and how it works Safety aspects of working with UVC Benefits of using UV technology: Economic Indoor Air Quality (IAQ). NAFA 2011.

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NAFA 2011 Williamsburg, VA

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  1. NAFA 2011Williamsburg, VA Ultraviolet Energy Presented by Sam Guzman American Ultraviolet Company

  2. NAFA 2011 • Basic explanation of UV and how it works • Safety aspects of working with UVC • Benefits of using UV technology: • Economic • Indoor Air Quality (IAQ)

  3. NAFA 2011 • Types of applications and equipment • Static vs. dynamic • Standard and High density arrays • Lamps and ballasts • Bare lamps, fixtures, and racks

  4. NAFA 2011 ASHRAE-Recent developments -Standards for surface and air disinfection -Degradation of materials commonly found in an AHU -New chapter for equipment - Programs for the next AHR show

  5. NAFA 2011 Underwriters Laboratory Recent interest in UV technology What it may mean to manufacturers and end users Questions

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  10. NAFA 2011 Why add UV equipment to an air-handler? Adding UV saves you money -No more coil cleaning man hours -No more coil cleaning chemical costs -No more downtime for critical areas -Maintains and restores AHU efficiency

  11. NAFA 2011 A dirty coil means: -reduced heat transfer -narrowed space between fins -loss of surface area due to impaction All of these make the AHU run longer and harder to bring the space to the desired temperature

  12. NAFA 2011 McGill University 2 Year Double Blind Study published in The Lancet99% reduction of microbial and endotoxin concentrations40% reduction in respiratory symptoms20% reduction in all symptoms

  13. NAFA 2011 ASHRAE Position Document on Airborne Infectious Diseases Approved by ASHRAE Board of Directors June 24, 2009listsUV as the top three control strategies to be considered for future research projects UV not only can save money it can save lives!

  14. NAFA 2011 Equipment: UV lamps

  15. NAFA 2011 Ballasts / Transformers Electronic Magnetic

  16. NAFA 2011 Types of UV applications in an AHU Static Dynamic -target does not move -air rushes by -time is 24/7 -time is 1 second or less -standard array can destroy - high density array used to “hard to kill” contaminants destroy common airborne “easy to kill” contaminants

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  18. NAFA 2011 ASHRAE history with UV 2005 ASHRAE TG 2.UVAS formed 2007 TG 2.UVAS becomes TC 2.9 Ultraviolet Air and Surface Treatment 2008 ASHRAE Handbook-S&E chapter on UV 2009 ASHRAE Position Document on Airborne Infectious Diseases identifies UVGI as a proven technique for airborne infection control 2010 TC 2.9 composes new chapter for ASHRAE Applications Handbook 2010 SPC185 UVC Lights For Use In Air Handling Units or Air Ducts To Inactivate Airborne Microorganisms composes standard 2010 ASHRAE commissions research project on the degradation of materials found in an AHU when exposed to UVC energy

  19. NAFA 2011 Underwriters Laboratories safety first UL and UV Friend or Foe?

  20. NAFA 2011 Thank you Questions?

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