This study involved challenging nuclear grade high-efficiency particulate air (HEPA) filters under a variety of conditions that can arise in Department of Energy (DOE) applications such as: low or high RH, controlled and uncontrolled challenge, and filters with physically damaged media or seals (i.e., leaks). Reported findings correlate filter function as measured by traditional differential pressure techniques in comparison with simultaneous instrumental determination of up and down stream PM concentrations. Additionally, emission rates and failure signatures will be discussed for filters that have either failed or exceeded their usable lifetime. Significant findings from this effort include the use of thermocouples up and down stream of the filter housing to detect the presence of moisture. Also demonstrated in the moisture challenge series of tests is the effect of repeated wetting of the filter. This produces a phenomenon referred to as transient failure before the tensile strength of the media weakens to the point of physical failure. An evaluation of the effect of particle size distribution of the challenge aerosol on loading capacity of filters is also included. Results for soot and two size distributions of KCl are reported. Loading capacities for filters ranged from approximately 70 g of soot to nearly 900 g for the larger particle size distribution of KCl.
Skip Nav Destination
The 11th International Conference on Environmental Remediation and Radioactive Waste Management
September 2–6, 2007
Bruges, Belgium
Conference Sponsors:
- Nuclear Division and Environmental Engineering Division
ISBN:
978-0-7918-4339-0
PROCEEDINGS PAPER
HEPA Filter Performance Under Adverse Conditions Available to Purchase
Michael Parsons,
Michael Parsons
Mississippi State University, Starkville, MS
Search for other works by this author on:
Kristina Hogancamp,
Kristina Hogancamp
Mississippi State University, Starkville, MS
Search for other works by this author on:
Steven Alderman,
Steven Alderman
Mississippi State University, Starkville, MS
Search for other works by this author on:
Charles Waggoner
Charles Waggoner
Mississippi State University, Starkville, MS
Search for other works by this author on:
Michael Parsons
Mississippi State University, Starkville, MS
Kristina Hogancamp
Mississippi State University, Starkville, MS
Steven Alderman
Mississippi State University, Starkville, MS
Charles Waggoner
Mississippi State University, Starkville, MS
Paper No:
ICEM2007-7074, pp. 595-598; 4 pages
Published Online:
May 29, 2009
Citation
Parsons, M, Hogancamp, K, Alderman, S, & Waggoner, C. "HEPA Filter Performance Under Adverse Conditions." Proceedings of the The 11th International Conference on Environmental Remediation and Radioactive Waste Management. 11th International Conference on Environmental Remediation and Radioactive Waste Management, Parts A and B. Bruges, Belgium. September 2–6, 2007. pp. 595-598. ASME. https://doi.org/10.1115/ICEM2007-7074
Download citation file:
14
Views
Related Proceedings Papers
Related Articles
Characterization of the Degradation of HEPA Filters Protected by Different Spark Arrestors for Various Cutting Means and Cutting Conditions
ASME J of Nuclear Rad Sci (January,2023)
Engine Design and Operational Impacts on Particulate Matter Precursor Emissions
J. Eng. Gas Turbines Power (March,2008)
Related Chapters
Section VIII: Division 2–Alternative Rules
Companion Guide to the ASME Boiler & Pressure Vessel Codes, Volume 2, Sixth Edition
Collection and Characteristics of Mycobacteria in Aerosols
Biological Contaminants in Indoor Environments
PSA Level 2 — NPP Ringhals 2 (PSAM-0156)
Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)