Experimental and theoretical study of a novel electrostatic enhanced air filter (EEAF) for fine particles

Feng, Zhuangbo; Long, Zhengwei; Mo, Jinhan

doi:10.1016/j.jaerosci.2016.08.012

Cited by 62 publications

(23 citation statements)

References 36 publications

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“…During the field investigation for this study, it is found that the small enterprises still use cyclone dust removal or wet scrubbers to reduce emissions from coal-fired boilers, which has low removal efficiency (Xue et al, 2016). other advanced emissions controlling technologies, such as electrostatic precipitator hybrid with filter, can be further applied to reducing PM 2.5 emissions (Feng et al, 2016). in addition, a fundamental restructuring of manufacturing processes and energy production in Chengdu would be a very effec- …”

Section: Discussionmentioning

confidence: 93%

“…By analysis of the five regions of Holland, Mooibroek et al (2011) announced that the primary sources of PM 2. 5 were from traffic and suspended dust from roads, burning, and residual oil combustion. Feng et al (2012) found that the automobile exhaust was the primary source of polycyclic aromatic hydrocarbon (Pah) particles, which were a major source of PM 2.5 in urban Shanghai.…”

Section: Introductionmentioning

confidence: 99%

“…Based on this, showed that benzo(a)pyrene (BaP) was the most abundant Pah in PM 2. 5 . obtained that the primary source of PM 2.5 in northern China was the burning of straw.…”

Section: Introductionmentioning

confidence: 99%

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An Investigation of PM 2.5 from Regional Industries in Chengdu, China

Zhao¹,

Ou²,

Liu³

2017

JRST

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This paper applies an emission factor approach to measuring the PM 2.5 (particulate matter suspended in the atmosphere with diameter ≤ 2.5 μm) emissions from industrial sources in Chengdu. The results show that the PM 2.5 emissions from industrial sources are 12,264.14 tons in 2013, of that, 3257.76 tons, or 26.56% of the total, are from stationary combustion source. Industrial processes accounts for the remaining 9006.38 tons, or 73.44% of PM 2.5 emissions. The Districts of Qing Baijiang, Pengzhou, Jintang, and Du Jiangyan are the principal areas to contribute industrial emissions in Chengdu, whilst the corresponding industries are cement, steel, fertilizer, and coal-fired electricity. The study is expected to provide insight into the emissions reduction, and the improvement of air quality in Chengdu. Limitations of the assessment are addressed to lay out a foundation for further study.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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An Investigation of PM 2.5 from Regional Industries in Chengdu, China

Zhao¹,

Ou²,

Liu³

2017

JRST

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“…Fiber-based filters consist of a dense mesh of fiber into the path of the airflow which increases the energy consumption of the fan to overcome the pressure drop. Even though fiber-based filters could reach high efficiencies for the fine particles, such as HEPA filters, it also has a relatively high-pressure drop when compared to electrostatic precipitators [6]. Additionally, fiber filters do not operate properly at high-temperature applications [7].…”

Section: Introductionmentioning

confidence: 99%

Utilization of electrostatic precipitators for healthy indoor environments

Altun

Kılıç

2019

E3S Web Conf.

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A healthy and comfortable indoor environment is the most basic requirement of human beings. The importance of indoor air quality has been increasing day to day. Although ventilation systems have an essential role in improving indoor air quality, it is inevitable to clean the particulates, microorganisms and pollutant gases in the outside fresh air before being transferred to the indoor environment. Electrostatic precipitators are commonly used for collecting particles mostly in industrial plants. This paper presents a review of electrostatic filtration technology. In this study, theoretical and technical developments of electrostatic precipitators, design parameters that effect filtering performance, advantages, challenges, and limitations are discussed.

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“…Numerous electrostatic filtration characteristics regarding particle penetration, particle loading behavior, and the effects of the physical and electrical properties of the particles, for instance, have been analyzed 11 – 13 . However, these studies focused mainly on nonconductive filters electrostatically reinforced by charge injection 23 , 24 and/or by the polarization of filter fibers under external electric fields 25 – 27 . Although there have been several conductive filters consisting of a stainless steel (SUS) mesh 28 and silver nanowire percolation network 29 , the effects of the electrical and structural properties of conductive filter media have yet to be examined with regard to the electrostatic filtration performance capabilities.…”

Section: Introductionmentioning

confidence: 99%

Al-Coated Conductive Fiber Filters for High-Efficiency Electrostatic Filtration: Effects of Electrical and Fiber Structural Properties

Choi

Jung

et al. 2018

Sci Rep

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Through the direct decomposition of an Al precursor ink AlH3{O(C4H9)2}, we fabricated an Al-coated conductive fiber filter for the efficient electrostatic removal of airborne particles (>99%) with a low pressure drop (~several Pascals). The effects of the electrical and structural properties of the filters were investigated in terms of collection efficiency, pressure drop, and particle deposition behavior. The collection efficiency did not show a significant correlation with the extent of electrical conductivity, as the filter is electrostatically charged by the metallic Al layers forming electrical networks throughout the fibers. Most of the charged particles were collected via surface filtration by Coulombic interactions; consequently, the filter thickness had little effect on the collection efficiency. Based on simulations of various fiber structures, we found that surface filtration can transition to depth filtration depending on the extent of interfiber distance. Therefore, the effects of structural characteristics on collection efficiency varied depending on the degree of the fiber packing density. This study will offer valuable information pertaining to the development of a conductive metal/polymer composite air filter for an energy-efficient and high-performance electrostatic filtration system.

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Experimental and theoretical study of a novel electrostatic enhanced air filter (EEAF) for fine particles

Cited by 62 publications

References 36 publications

An Investigation of PM 2.5 from Regional Industries in Chengdu, China

An Investigation of PM 2.5 from Regional Industries in Chengdu, China

Utilization of electrostatic precipitators for healthy indoor environments

Al-Coated Conductive Fiber Filters for High-Efficiency Electrostatic Filtration: Effects of Electrical and Fiber Structural Properties

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