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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

STUDY ON DUST PARTICULATE REMOVAL IN EXHAUST GAS USING ELECTROSTATIC SPRAY

Get access (open in a dialog) DOI: 10.1615/IHTC16.nee.023922
pages 7511-7517

Abstract

Increased air pollution due to dust particulates brought about a need for more effective measures to reduce dust particles from the exhaust gas of coal-fired power plants. This study focuses on electrostatic spray for a novel design of electric precipitators. Electrostatic spray refers to the process of the dispersion of electrically charged liquid particles through ionization of the charged liquid to reach a counter electrode. Dust particles passing between the emitter nozzles and counter electrodes are attracted to the liquid droplets and can be easily collected on the surfaces of the counter electrodes. This paper analyzes the volumetric flux of the liquid at the nozzle exit to clarify the relationship between the nozzle length, inlet pressure and the liquid volume flux. The importance of finding a suitable range of liquid flux and the velocity at the nozzle exit is also highlighted.