Thermal Science 2023 Volume 27, Issue 6 Part B, Pages: 4877-4892
https://doi.org/10.2298/TSCI230816244M
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Investigation of velocity distribution in channels and chambers of the electrostatic precipitator at TPP Nikola Tesla Unit A1
Marković Zoran J. 
("VINČA" Institute of Nuclear Sciences, National Institute of thе Republic of Serbia, University of Belgrade, Belgrade, Serbia), zoda_mark@vin.bg.ac.rs
Erić Milić D. ("VINČA" Institute of Nuclear Sciences, National Institute of thе Republic of Serbia, University of Belgrade, Belgrade, Serbia)
Stefanović Predrag Lj. ("VINČA" Institute of Nuclear Sciences, National Institute of thе Republic of Serbia, University of Belgrade, Belgrade, Serbia)
Lazović Ivan M. ("VINČA" Institute of Nuclear Sciences, National Institute of thе Republic of Serbia, University of Belgrade, Belgrade, Serbia)
Milićević Aleksandar R. ("VINČA" Institute of Nuclear Sciences, National Institute of thе Republic of Serbia, University of Belgrade, Belgrade, Serbia)
Mančić MarkoV. (Faculty of Mechanical Engineering, University of Niš, Niš, Serbia)
Jovčevski Milica (Faculty of Mechanical Engineering, University of Niš, Niš,Serbia)
Jovanović Rastko D. ("VINČA" Institute of Nuclear Sciences, National Institute of thе Republic of Serbia, University of Belgrade, Belgrade, Serbia)
To achieve the optimum dust removal performance of an electrostatic precipitator, the flue gas should be distributed uniformly over its vertical cross-section. The flow in the upstream flue gas ducts has a significant influence on the downstream gas distribution in the chamber of the precipitator. This paper presents the results of homogeneity assessment of velocity distribution in the ducts and vertical cross-sections of the electrostatic precipitator of Unit A1 at the Nikola Tesla thermal power plant in Obrenovac. The measurements confirmed that the reconstruction of the vertical chamber at the front of the precipitator, which was carried out during the overhaul in 2020, effectively solved the problem of the original asymmetric arrangement of the vertical flue gas ducts. Nevertheless, the analysis revealed poor homogeneity of the flow field through the chambers. Therefore, additional measures must be taken to increase the dust removal efficiency of the precipitator.
Keywords: electrostatic precipitator, velocity measurements, flow homogeneity assessment
Show references
Daniele, S., et al., Mitigation Strategies for Reducing Air Pollution, Environmental Science and Pollution, 27 (2020), Apr., pp. 19226-19235
Kiss, F. E., Petkovič, Đ. P., Revealing the Costs of Air Pollution Caused by Coal-Based Electricity Generation in Serbia, Proceedings, 7th Exploitation of Renewable Energy Sources and Eciency EXPRES 2015, Subotica, Serbia, 2015, pp. 96-101
Jedrusik, M., et al., Physical and Numerical Modelling of Gas-Flow in Electrostatic Precipitator, Przeglad Elektrotechniczny, 93 (2017), 2, pp. 228-231
Grainger, C., Paulson, C., Ductwork Changes Improve ESP Performance: Relatively Inexpensive Changes Improve Velocity Distribution throughout the Electrostatic Precipitator, Which Drastically Reduces Particulate Emissions, (Environmental Manager), Chemical Engineering, 110 (2003), 1, 69
Cleland, N. A., Aziz, K., A Report on Gas-flow Measurement, (CIM·AIME Petroleum Engineering Section Study Group, Edmonn, 1961/2), Journal of Canadian Petroleum, Technology, 2 (1962), pp. 130-152
Krasnov, A. N., Prakhova, M. Y., Instantaneous Gas-Flow Rate Estimation in the Gasgathering System Flowline by Indirect Measurement Method, Journal Phys. Conf. Ser., 1889 (2021), 052045
Anna, G. J., et al., Determination of the Uncertainty of Mass-Flow Measurement Using the Orifice for Different Values of the Reynolds Number, Proceedings, EFM 2018, EPJ Web of Conferences 213, 2019, 02022
Care, I., Fourneaux, F., Investigation of the Pressure Response of Different Pitot Tubes, Flow Measurement and Instrumentation, 72 (2020), 101714
Butterfield, D., Robinson R., A Study of the Measurement Issues Associated with the Monitoring of Gaseous Emissions from Industrial Plants, NPL Report DQL-AS 022, National Physical Laboratory, Teddington, UK, 2005
Dongjie, Y., et al., The 3-D-PIV Measurement for EHD Flow of Spiked Tubular Electrode Corona Discharge in Wide Electrostatic Precipitator, Measurement Science Review, 20 (2020), 4, pp. 178-186
Podlinski J., et al., Measurement of the Flow Velocity Field in Multi-Field Wire-Plate Electrostatic Precipitator, Czechoslovak Journal of Physics, 54 (2004), Suppl. C, pp. C922-C930
Brevoort, M. J. Joyner, U. T., Experimental Investigation of the Robinson-Type Cup Anemometer, NACA-TR-513, National Advisory Committee for Aeronautics, Langley Memorial Aeronautical Laboratory, Langley Field, Va., USA, 1935
Camuffo, D., Chapter 20 - Measuring Wind and Indoor Air Motions, in: Microclimate for Cultural Heritage, 3rd ed., Measurement, Risk Assessment, Conservation, Restoration, and Maintenance of Indoor and Outdoor Monuments, Elsavir, Amsterdam, The Netherlands, 2019, pp. 483-511
Kapartis, S., Anemometer Employing Standing Wave Normal to Fluid-flow and Travelling Wave Normal to Standing Wave, United States Patent, Patent Number: 5,877,416, Date: Mar. 2, 1999
Paulraj, P. A. et al., System and Method for Gas Distribution Measurement for Electrostatic Precipitator, United States Patent Application Publication, Pub. No.: US 2012/0279293 A1, Pub. Date: Nov. 8, 2012
Steiner, D., et al., Influence of Gas Distribution, Field Velocity and Power Supply Technique for Small Scale Industrial ESP’s, International Journal of Plasma Environmental Science and Technology, 5 (2011), 2, pp. 124-129
Xiang, X., et al., Collection Enhancement Mechanism and Test of Side-flow Electrostatic Precipitation, Aerosol and Air Quality Research, 20 (2020), 4, pp. 844-851
Vaddi, R. S., et al., Behavior of Ultrafine Particles in Electro-Hydrodynamic Flow Induced by Corona Discharge., Journal Aerosol Sci., 148 (2020), 105587
Marković, Z., et al., Problem of Gas Distribution in Electrostatic Precipitators of Unit A4 in TPP Nikola Tesla, SimTerm 2019, Proceedings, 19th Conference on Thermal Science and Engineering of Serbia, Sokobanja, Serbia, 2019, pp. 470-485
Lazović, I., et al., Transport Trolleys for Anemometers for Testing the Air Velocity Profile in the Chambers of Electrostatic Precipitators of Large Emitters (in Serbian), Petty Patent No. 1775, Intellectual Property Gazette No. 11, The Intellectual Property Office of the Republic of Serbia, 2022, pp. 46
Zhao, D., et al., Flow Field Simulation and Optimization Design of SCR of 660 MW Power Unit Based on CFD, IOP Conf. Ser.: Earth Environ. Sci., 170 (2018), 042031
Zhou, J., et al., Energy and Momentum Correction Coefficients Within Contraction Zone in Open-Channel Combining Flows, Water Science and Engineering, 14 (2021), 4, pp. 337-344
***,Electrostatic Precipitator Gas-flow Model Studies, Publication ICAC-EP-7, Institute of Clean Air Companies, Washington, USA, 2004
***, VDI 3678 Part 1, Electrostatic Precipitators - Process and waste gas cleaning, VDI/DIN-Handbuch Reinhaltung der Luft, Band 6: Abgasreinigung - Staubtechnik Beuth Verlag, Berlin, Germany, 2011
Ngo, T. T., et al, Enhancement of Exit Flow Uniformity by Modifying the Shape of a Gas Torch to Obtain a Uniform Temperature Distribution on a Steel Plate During Preheating, Applied Sciences, 8 (2018), 11, 2197
Munnannur, A., et al., Development of Flow Uniformity Indices for Performance Evaluation of Aftertreatment Systems, SAE Int. J. Engines, 4 (2011), 1, pp. 1545-1555