Experimental and simulation studies on dust loading performance of a novel electrostatic precipitator with dielectric barrier electrodes

Xiong, Wenlang; Lin, Zhihong; Zhang, Wanyi; Chen, Tianzhu; Zhao, Chenghui

doi:10.1016/j.buildenv.2018.08.008

Cited by 18 publications

(17 citation statements)

References 33 publications

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“…In the research on the plate-type microelectrostatic filter, the researchers have proved that the resistance of the plate-type microelectrostatic filters is only 14 Pa at 1.0 m/s, and the initial PM2.5 filtration efficiency can also reach 99.8%. However, after 50 days of operation, the PM2.5 filtration efficiency of a platetype micro-electrostatic filter drops to 50% [20]. This study also means that although the efficiency of a plate-type micro-electrostatic filter has reached the level of a medium-efficiency filter, its filter performance is challenging to regulate after it contains dust [14,20,38].…”

Section: Introductionmentioning

confidence: 86%

“…A micro-electrostatic filter is composed of multiple electric field channels, and the movement of particles in an electric field channel determines the performance of the filter. A single channel model is often used for simplified calculation [20] to simulate the performance of the electrostatic filter and was adopted in this research. We first used the methods commonly used in the literature [20,52] to simulate the flow field and the electrostatic field, and then establish the particle motion and charging model in the electric field channel.…”

Section: Methodsmentioning

confidence: 99%

“…However, after 50 days of operation, the PM2.5 filtration efficiency of a platetype micro-electrostatic filter drops to 50% [20]. This study also means that although the efficiency of a plate-type micro-electrostatic filter has reached the level of a medium-efficiency filter, its filter performance is challenging to regulate after it contains dust [14,20,38]. Therefore, improving the dust-holding capacity (DHC) of the micro-electrostatic filter is the key to its application in HVAC systems.…”

Section: Introductionmentioning

confidence: 99%

“…According to early experimental work, an electrostatic filter will produce many ions during operation. Pathogenic bio-aerosols in the air are effectively disinfected upon exposure to ions [19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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Simulation Study of a Novel Cylindrical Micro-Electrostatic Particulate Air Filter with High Filtration Efficiency and Low Resistance

Liu

Kong

et al. 2021

Buildings

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The purification of indoor pathogenic microorganisms has become a topic of concern. The use of nonwoven media air filters causes high resistance, and the problem of noise limited their application under high air volume. Thus, we propose a micro-electrostatic filter, which has improved performance compared to an electrostatic filter, with a new type of cylindrical structure to tackle indoor pathogenic microbial aerosol pollution. Through simulation, it is found that the filtration performance of a cylindrical structure is better than that of a plate structure under all simulation conditions. For particles larger than 1 μm, the shortest theoretical length of the dust collecting plate required for the cylindrical structure is 34% shorter than that for the plate structure. For 0.1 μm particles, the filtration efficiency of the cylindrical structure is nearly 20~30% (the maximum value is 29.76%) higher than that of the plate structure, while the air velocity is 1.5 m/s~2.5 m/s. The resistance of the cylindrical micro-electrostatic filter is only half of that of the combined plate type micro-electrostatic filter, indicating that the cartridge structure has enormous energy-saving potential. The introduction of the quality factor further proves that the integrated filtration performance of the cartridge micro-electrostatic filter is better. The application of cylindrical micro-electrostatic filters in HVAC systems can help improve indoor air quality and reduce health risks.

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Section: Introductionmentioning

confidence: 86%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simulation Study of a Novel Cylindrical Micro-Electrostatic Particulate Air Filter with High Filtration Efficiency and Low Resistance

Liu

Kong

et al. 2021

Buildings

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“…Due to low pressure drop and high efficiency, air cleaners based on ESPs have also been widely applied to remove fine particles and improve indoor and outdoor air quality. 25 − 27 Thus, this study can be used to guide the removal of indoor and outdoor particles by joint electrostatic inertial separators.…”

Section: Introductionmentioning

confidence: 99%

Inertial Separation of Particles Escaped from Electrostatic Precipitators

Liu

Wang

et al. 2021

ACS Omega

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For particles that escape from electrostatic precipitators (ESPs), inertial recapture is used to improve the efficiency of dust removal. A rod-grid inertial separator was designed. The electrostatic and fluid flow particle tracking modules were selected in the model established by the COMSOL software, and the dust removal efficiency of the proposed dust separator was evaluated. When the flue gas velocity was 20 m·s –1 , the diameter of the round rod was 8 mm, and the spacing of the pipes was 15 mm, the removal efficiency of PM2.5 and PM10 reached 27.8 and 84.6%, respectively. Experiments were performed under laboratory conditions and actual working conditions in a coal-fired power plant flue. Results showed that an inertial separator can achieve more than 60% efficiency in recapturing fly ashes that have escaped from ESPs. It can effectively remove fine particles and aerosol pollutants represented by PM2.5 and PM10.

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The Effect of Inlet Wind Speed on the Performance of Electrostatic Precipitation Systems and Double Rotating Venturi Systems

Cheng,

Niu,

Fan

et al. 2024

Lecture Notes in Electrical Engineering

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Experimental and simulation studies on dust loading performance of a novel electrostatic precipitator with dielectric barrier electrodes

Cited by 18 publications

References 33 publications

Simulation Study of a Novel Cylindrical Micro-Electrostatic Particulate Air Filter with High Filtration Efficiency and Low Resistance

Simulation Study of a Novel Cylindrical Micro-Electrostatic Particulate Air Filter with High Filtration Efficiency and Low Resistance

Inertial Separation of Particles Escaped from Electrostatic Precipitators

The Effect of Inlet Wind Speed on the Performance of Electrostatic Precipitation Systems and Double Rotating Venturi Systems

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