NEW WEBINAR: Equivalent Clean Airflow and Air Cleaners, Keys to Sustainable IAQ
This event was originally broadcast on November 18, 2024
Now Available On-Demand
Duration: 1 hour
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Summary
The conventional approach to indoor air quality (IAQ) control uses outdoor air to dilute and remove indoor contaminants and mechanical filters to capture particles. Standards and codes specify outdoor air flow rates and minimum particle filtration requirements.
The energy use associated with reliance on outdoor air has long been considered a barrier to improving IAQ. The concept of Equivalent Clean Air (ECA), which condenses the effects of all IAQ controls into a single measure, has the potential to overcome energy-focused objections to setting higher IAQ standards – IF air cleaners can be used effectively and safely in place of increased outdoor air.
This webinar will describe:
- How ECA is defined;
- Review existing air cleaning technologies used to produce ECA;
- How ECA is used in ASHRAE 241, Control of Infectious Aerosols;
- How ECA can be generalized for use in minimum acceptable air quality standards such as ASHRAE Standard 62.1.
Speakers
William Bahnfleth, PhD, PE, ASHRAE past president (2013-14)
Prof. of Architectural Engineering, Penn State University.
Dr. Bahnfleth is former chair of the ASHRAE Epidemic Task Force, and current chair of ASHRAE SSPC 241, Control of Infectious Aerosols. An internationally renowned expert on indoor air quality, he has served as an adviser to the White House on post-pandemic IAQ strategies and is a longtime member of HPAC Engineering's Editorial Advisory Board. For more, listen to Dr. Bahnfleth's recent appearance on HPAC On The Air.
