A Case Study of ESP Electrical Characteristics from a Thermal Power Station

Sora²,

Diniş³

et al. 2014

Environ. Protect. Eng.

Self Cite

Experimental data collected from different plate-type electrostatic precipitators used in a thermoelectric power plant has been analyzed. The following parameters were considered: the collection efficiency, average migration velocity of dust particles, velocity distribution of the gas in the input and output channels of precipitators. The average migration velocity of dust particles can be estimated using various mathematical models, and the gas velocity can be computed using the velocity distributions from the input channels of the precipitators. The traveling time of dust particles between the electrodes is smaller than the traveling time along the precipitator sections.

Section: Introductionmentioning

confidence: 99%

An analysis on the velocity of dust particles in the plate-type electrostatic precipitators used in thermoelectric power plants

Sora²,

Diniş³

et al. 2014

Environ. Protect. Eng.

Self Cite

“…The power sources that supply the ESP sections, depending on the constructive solution, the operational diagram and the voltage's adjusting regime determine and increased safety and efficiency for collecting the dust from the gas result further different industrial processes [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Considerations on the Current Harmonics of Plate-Type Electrostatic Precipitators Power Supplies

Diniş

Deaconu

2013

ElAEE

Plate-type electrostatic precipitators are the main installations of separating particles from industries (especially for large gas flow) and must operate in its electromagnetic environment without interfering with the operation of other equipments. The power supplies have non-linear elements that cause distortions of the sources currents. The main objective of this work is to analyze measure and simulate currents, voltages and powers from the sources that are used (thyristor-controlled reactor type) taking into account a new electric model, more close to reality, of the ESP sections. It's analyzed the modification of the current waves shape and THD in case of using passive filters.

“…This voltage (usually, up to 60-80 kV) is applied to a precipitator section without additional filtering. This type of energization is often used in practice, and has been used in the last three decades for normal dust resistivity 10 6 -10 9 Ω⋅cm [3].…”

Section: Improving Collection Efficiency Using Different Types Of Volmentioning

confidence: 99%

“…Each section can be sectioned in two zones, to increase the reliability of precipitator. The ESP itself is the part of the electric de-dusting installation in which takes place the ionization and separation of the dust particles from gases [2,3].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

About Improving Collection Efficiency for Industrial Plate-Type Electrostatic Precipitator

2013

AEF

Self Cite

Abstract. Plate-type electrostatic precipitators are the largest and most used industrial dusts control, most applications are in the production of electricity (thermoelectric power plants). In many industrial applications, plate-type precipitators have three sections and silicon-controlled rectifier power supplies type. Although, the collection efficiency obtained by these type of precipitators are more than 95%, most of the dust particles with diameter less than 10 µm remain un-collected. To improve the collection efficiency different electrical and/or mechanical options can be used. To improve the collection efficiency of industrial plate-type precipitators, the paper presents two practical options. The first solution would be replacing the power supplies -silicon-controlled rectifier -with other special power supplies (intermittent power supplies, high frequency power supplies) depending on the dust resistivity; the second solution would be to add a new section at precipitator -an expensive solution, usually the last. The technological and electrical sizes, simulated and measured, are presented for the proposed solutions.