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Large-scale generic test stand for testing of multiple configurations of air filters utilizing a range of particle size distributions
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10.1063/1.4717671
/content/aip/journal/rsi/83/5/10.1063/1.4717671
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/5/10.1063/1.4717671

Figures

Image of FIG. 1.
FIG. 1.

Photographs of ((a) and (b)) safe change and ((c) and (d)) remote change filters.

Image of FIG. 2.
FIG. 2.

Image of the indoors portion of the test stand.

Image of FIG. 3.
FIG. 3.

Drawing of the test stand, indoors, and outdoors.

Image of FIG. 4.
FIG. 4.

Schematic of the ICET large-scale HEPA test stand filter housing.

Image of FIG. 5.
FIG. 5.

Illustration of (a) induced draft fan start up overshooting volumetric flow set point and (b) difficulty in controlling volumetric air flow rate during rapid increases in differential pressure.

Image of FIG. 6.
FIG. 6.

Illustration of the optimized fan operation curve.

Image of FIG. 7.
FIG. 7.

Test stand ductwork volumetric air flow traverses.

Image of FIG. 8.
FIG. 8.

Tare dP for the ICET large-scale HEPA test stand housing without a filter.

Image of FIG. 9.
FIG. 9.

PSD of the challenge aerosols.

Image of FIG. 10.
FIG. 10.

Burner startup, alumina, ambient air, and burner post warm up PSD on a logarithmic scale.

Image of FIG. 11.
FIG. 11.

Effect of increased volumetric flow rate on filter differential pressure.

Image of FIG. 12.
FIG. 12.

Downstream concentration, GSD, and MPPS as a function of dP during filter loading.

Image of FIG. 13.
FIG. 13.

Filtering efficiency for all measured particles and differential pressure vs. time.

Image of FIG. 14.
FIG. 14.

Mass loading curve for different filter types and challenge aerosols.

Image of FIG. 15.
FIG. 15.

In-testing images (a): 1 kPa (4 in. w.c.), (b): 2.5 kPa (10 in. w.c.), (c): 5 kPa (20 in. w.c.), (d): Failure due to pleat collapse 7.2 kPa (29 in. w.c.).

Image of FIG. 16.
FIG. 16.

Filter rupture images.

Image of FIG. 17.
FIG. 17.

Differential pressure, humidity, and temperature versus time for remote change filter.

Tables

Generic image for table
Table I.

Performance capabilities of the test stand.

Generic image for table
Table II.

Test stand components.

Generic image for table
Table III.

Measured aerosol parameters.

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/content/aip/journal/rsi/83/5/10.1063/1.4717671
2012-05-14
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Large-scale generic test stand for testing of multiple configurations of air filters utilizing a range of particle size distributions
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/5/10.1063/1.4717671
10.1063/1.4717671
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