Numerical study on the collection performance according to tilt angle of the collection plate in ESPs

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-03-03 DOI:10.1016/j.powtec.2025.120873

Jeong Geun Gwon , Ho Yeon Choi , Young Min Seo , Seokho Kim , Hoon Ki Choi , Yong Gap Park

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引用次数: 0

Abstract

Particulate matter poses serious accident risks and health hazards, making control technologies essential. This study aims to analyze the effectiveness of electrostatic precipitators (ESPs) using corona discharge in reducing particulate matter. We analyze three performance influencing parameters: the applied voltage (φ_wire = 6, 9, and 12 kV), volumetric flow rate (Q = 0.05, 0.1, and 0.15 m³/s), and tilt angle of collection plate (θ_tilt = −2.1, −1.4, −0.7, 0, 0.7, 1.4, and 2.1°). In the electric field, the average corona current per unit length of the discharge electrode is enhanced by a maximum of 14.08 % at θ_tilt = 2.1° and − 2.1° when compared to that at θ_tilt = 0°. In the gas flow field, as the tilt angle increases at θ_tilt = 0.7° ∼ 2.1°, the pressure drop also increases corresponding to the applied voltage. This result is reversed at θ_tilt = −2.1° ∼ −0.7°. In particle motion, the larger the tilt angle, the greater the charge of the particle. The collection efficiency at θ_tilt = 2.1° increases by approximately 10 % at φ_wire = 9 kV and Q = 0.1 m³/s, compared to that at θ_tilt = −2.1°. However, in long-term operation, θ_tilt = −2.1° is most advantageous due to its even distribution of particles across the collection plate.

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.