Effects of baffles on flow distribution in an electrostatic precipitator (ESP) of a coal based power plant

Sayem, A. S. M., Khan, M. M. K., Rasul, M. G., Maung Than Oo, Aman and Hassan, N. M. S. 2015, Effects of baffles on flow distribution in an electrostatic precipitator (ESP) of a coal based power plant, Procedia engineering, vol. 105, pp. 529-536, doi: 10.1016/j.proeng.2015.05.086.

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Title Effects of baffles on flow distribution in an electrostatic precipitator (ESP) of a coal based power plant
Author(s) Sayem, A. S. M.
Khan, M. M. K.
Rasul, M. G.
Maung Than Oo, Aman
Hassan, N. M. S.
Journal name Procedia engineering
Volume number 105
Start page 529
End page 536
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015
ISSN 1877-7058
Keyword(s) ESP
Flow distribution
Resifual time
Summary Electrostatic Precipitators (ESP) are the most reliable and industrially used control devices to capture fine particles for reducing exhaust emission. Its efficiency is 99% or more. However, capturing submicron particles which are hazardous is still a problem as it involves complex flow phenomena and ESP design limitations. In this study, the effect of baffles on flow distribution inside the ESP is investigated computationally. Baffles are expected to increase the residence time of flue gas which helps to collect more particles into the collector plates, and hence increase the collection efficiency of an ESP. Besides, the placement of a baffle is likely to cause swirling of flue gas and hence sub-micron particles move towards the collector plate due to eccentric and electrostatic force. Therefore, the effects of position, shape and thickness of the baffles on collection efficiency which are also important for ESP design are reported in this study. The fluid flow distribution has been modelled using computational fluid dynamics (CFD) software Fluent and the result and outcome are presented and discussed. The result shows that baffles have significant influence on fluid flow pattern and the efficiency of ESP.
Notes This journal is published as part of the 6th BSME International Conference on Therman Engineering (ICTE 2014)
Language eng
DOI 10.1016/j.proeng.2015.05.086
Field of Research 090608 Renewable Power and Energy Systems Engineering (excl Solar Cells)
MD Multidisciplinary
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081130

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