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논문 기본 정보

자료유형
학술저널
저자정보
Panich Intra (Rajamangala University of Technology Lanna) Artit Yawootti (Rajamangala University of Technology Lanna) Phadungsak Rattanadecho (Thammasat University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.12 No.5
발행연도
2017.9
수록면
2,021 - 2,030 (10page)

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초록· 키워드

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In this paper, the unipolar corona-needle charger was developed and its capabilities were both numerically and experimentally investigated. The experimental corona discharges and particle losses in the charger were obtained at different corona voltage, aerosol flow rate and particle diameter for positive and negative coronas. Inside the charger, the electric field and charge distribution and the transport behavior of the charged particle were predicted by a numerical simulation. The experimental results yielded the highest ion number concentrations of about 1.087 × 10<SUP>15</SUP> ions/㎥ for a positive corona voltage of about 3.2 kV, and 1.247 × 10<SUP>16</SUP> ions/㎥ for a negative corona voltage of about 2.9 kV, and the highest Nit product for positive and negative coronas was found to about 7.53 × 10<SUP>13</SUP> and 8.65 × 10<SUP>14</SUP> ions/㎥ s was occurred at the positive and negative corona voltages of about 3.2 and 2.9 kV, respectively, and the flow rate of 0.3 L/min. The highest diffusion loss was found to occur at particles with diameter of 30 nm to be about 62.50 and 19.33 % for the aerosol flow rate of 0.3 and 1.5 L/min, respectively, and the highest electrostatic loss was found to occur at particles with diameters of 75 and 50 nm to be about 86.29 and 72.92 % for positive and negative corona voltages of about 2.9 and 2.5 kV, respectively. The numerical results for the electric field distribution and the charged particles migration inside the charger were used to guide the description of the electric field and the behavior of charged particle trajectories to improve the design and refinement of a unipolar coronaneedle charger that otherwise could not be seen from the experimental data.

목차

Abstract
1. Introduction
2. Materials and methods
3. Results and Discussion
4. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2018-560-001201434