Charge density measurement of electret filters using alpha-ray ionizing radiation

Romay, Francisco J.; Liu, Benjamin Y. H.; Chae, Seung‐Hoon

doi:10.1016/s0015-1882(99)80080-9

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Estimation Of Charge Density On Rwf1

Existing Model For Electret Media1

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2005

2023

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Cited by 6 publications

(2 citation statements)

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“…Romay et al (1999) proposed a method for the measurement of charge density that employed the neutralization of electrical charge with bipolar ions generated by Alpha-ray irradiation. However, since the recombination of bipolar ions in a filter is inevitable, the charge density predicted by this method would be overestimated, as suggested by Lee et al (2002).…”

Section: Estimation Of Charge Density On Rwfmentioning

confidence: 99%

Initial Collection Performance of Resin Wool Filters and Estimation of Charge Density

Kim

Ōtani

Noto

et al. 2005

Aerosol Science and Technology

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A new type of resin wool filter (RWF) that persists the load with oil droplets was developed by Kimura and colleagues. In the present work, the initial collection performances of RWF (A and C) are measured for various particle sizes ( −4 C/m 2 , which is much higher than those of conventional electret filter media. Therefore, RWF studied in the present work is suitable for the application to respirators as well as room air cleaners.

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Section: Estimation Of Charge Density On Rwfmentioning

confidence: 99%

Initial Collection Performance of Resin Wool Filters and Estimation of Charge Density

Kim

Ōtani

Noto

et al. 2005

Aerosol Science and Technology

View full text Add to dashboard Cite

show abstract

“…Methods have been proposed to measure the charge density of fibers in charged media, e.g., the measurement of bipolar ions necessary to remove the electrical charges in charged media. For example, Romay et al (1999) proposed a method for the measurement of charge density that employed the neutralization of electrical charges by bipolar ions generated from alpha-ray irradiation. However, none has been very convincing except the use of a hard X-ray method (Zenkevich et al, 2013), which is not easily accessible.…”

Section: Existing Model For Electret Mediamentioning

confidence: 99%