High Air-Flow Aerosol Filtration Testing

Technical Report · Sat Sep 01 04:00:00 EDT 2018

DOI:https://doi.org/10.2172/1475248· OSTI ID:1475248

Hubbard, Joshua Allen ^[1]; Wiemann, Dora K. ^[1]; McKenzie, Bonnie B. ^[1]; Boldenow, Jennifer ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Pressure losses and aerosol collection efficiencies were measured for fibrous filter materials at air-flow rates consistent with high efficiency filtration (hundreds of cubic feet per minute). Microfiber filters coated with nanofibers were purchased and fabricated into test assemblies for a 12-inch duct system designed to mimic high efficiency filtration testing of commercial and industrial processes. Standards and specifications for high efficiency filtration were studied from a variety of institutions to assess protocols for design, testing, operations and maintenance, and quality assurance (e.g., DOE, ASHRAE, ASME). Three materials with varying Minimum Efficiency Reporting Values (MERV) were challenged with sodium chloride aerosol. Substantial filter loading was observed where aerosol collection efficiencies and pressure losses increased during experiments. Filter designs will be optimized and characterized in subsequent years of this study. Additional testing will be performed with higher hazard aerosols at Oak Ridge National Laboratory.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
• DOE Contract Number: AC04-94AL85000; NA0003525
• OSTI ID: 1475248
• Report Number(s): SAND--2018-10748; 668310
• Country of Publication: United States
• Language: English

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