Particle removal enhancement in a high-temperature electrostatic precipitator for glass furnace

Zheng, Chenghang; Shen, Zhiyang; Yan, Ping; Zhu, Weizhuo; Chang, Qianyun; Gao, Xiang; Luo, Zhongyang; Ni, Mingjiang; Cen, Kefa

doi:10.1016/j.powtec.2017.06.017

Cited by 29 publications

(2 citation statements)

References 31 publications

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“…Air pollution has become one of the most serious environmental issues in China, especially particulate matter pollution. The particulate matter emitted by coal-fired power plants is one of the main pollution sources [1,2,3,4,5,6]. Currently, with the increasingly rigorous emission standards [7], the accuracy of real-time measurement of particulate matter mass concentrations should be improved urgently.…”

Section: Introductionmentioning

confidence: 99%

A New Angular Light Scattering Measurement of Particulate Matter Mass Concentration for Homogeneous Spherical Particles

Chen

Liu

Han

et al. 2019

Sensors

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Under the condition of ultra-low emission for power plants, the particulate matter concentration is significantly lower than that of typical power plants a decade ago, which posed new challenges for the particulate matter monitoring of stationary emission. The monitoring of particulate matter mass concentration based on ensemble light scattering has been found affected by particle size. Thus, this study develops a method of using the scattering angular distribution to obtain the real-time particle size, and then correct the particulate matter concentration with the real-time measured particle size. In this study, a real-time aerosol concentration and particle size measurement setup is constructed with a fixed detector at the forward direction and a rotating detector. The mass concentration is measured by the fixed detector, and the particle size is measured from the intensity ratio of the two detectors. The simulations show that the particle size has power law functionality with the angular spacing of the ripple structure according to Mie theory. Four quartz aerosols with different particle size are tested during the experiment, and the particle size measured from the ripple width is compared with the mass median size measured by an electrical low pressure impactor (ELPI). Both techniques have the same measurement tendency, and the measurement deviation by the ripple width method compared with ELPI is less than 15%. Finally, the measurement error of the real-time mass concentration is reduced from 38% to 18% with correction of the simultaneously measured particle size when particle size has changed.

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Section: Introductionmentioning

confidence: 99%

A New Angular Light Scattering Measurement of Particulate Matter Mass Concentration for Homogeneous Spherical Particles

Chen

Liu

Han

et al. 2019

Sensors

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“…Further, electrostatic precipitation has been studied for many new applications such as diesel exhaust cleaning and cleaning of indoor air in houses, hospitals, food factories, etc, because it can remove nano-to micro-sized fine particles very effectively with very low pressure drop. Various experimental and numerical works on the application and fundamental phenomena of electrostatic precipitation have been carried out [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Two-stage electrostatic precipitator using induction charging

Takashima

Kohno

Katatani³

et al. 2018

J. Phys. D: Appl. Phys.

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An electrostatic precipitator (ESP) without using corona discharge was investigated herein. The ESP employed a two-stage configuration, consisting of an induction charging-based particle charger and a parallel plate type particle collector. By applying a high voltage of several kV, under which no corona discharge was generated in the charger, particles were charged by induction due to contact with charger electrodes. The amount of charge on the charged particles increased with the applied voltage and turbulent air flow in the charger. Performance of the ESP equipped with the induction charger was investigated using ambient air. The removal efficiency for particles ranging 0.3 µm to 5 µm in diameter increased with applied voltage and turbulence intensity of gas flow in the charger when the applied voltage was sufficiently low not to generate corona discharge. This suggests that induction charging can be used for electrostatic precipitation, which can reduce ozone generation and power consumption significantly.

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