Response of standard and high-capacity HEPA filters to simulated tornado and explosive transients

Technical Report · Mon Mar 01 00:00:00 EST 1982

OSTI ID:5315850

Gregory, W S; Smith, P R

An investigation was performed to determine the response of standard and high-capacity high-efficiency particulate air filters to simulated tornado and explosive transients. Most of the tests were directed toward evaluating the structural response of high-capacity filters to explosive transients. Selected tests were performed to evaluate the effects of particulate loading on filtration efficiencies. Also, several of the high-capacity filters were subjected to simulated toronado transients. The results indicate that the upper structural limits of high-capacity filters for explosive loading is 6.89-kPa (1-psi) peak pressure and 100-kPa-ms (14.51-psi-ms) impulse. These limits are below the approximately 13.78-kPa (2-psi) peak pressure loadings found for standard HEPA filters. Tests of high-capacity filters preloaded with aerosol indicated that the structural limits were further degraded by approximately 40%. The filtration efficiencies were degraded to approximately 70% when the filters were subjected to aerosol entrained within the shock pulse. The effect of simulated tornado transients on high-capacity filters resulted in an upper structural limit of 11.02 kPa (1.6 psi) for peak pressure.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5315850
• Report Number(s): LA-9210-MS; ON: DE82009717
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
FILTERS
DYNAMIC LOADS
EFFICIENCY
FAILURES
NUCLEAR FACILITIES
VENTILATION SYSTEMS
DEFORMATION
DUSTS
EXPERIMENTAL DATA
EXPLOSIONS
MECHANICAL PROPERTIES
PERFORMANCE TESTING
PRESSURE GRADIENTS
SHOCK WAVES
TORNADOES
DATA
DISASTERS
INFORMATION
NUMERICAL DATA
STORMS
TESTING
WIND
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