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http://dx.doi.org/10.7837/kosomes.2020.26.6.706

FMEA of Electrostatic Precipitator for Preventive Maintenance  

Han, Seung-Hun (Department of Mechanical System Engineering, Gyeongsang National University)
Lee, Jeong-Uk (Department of Mechanical System Engineering, Gyeongsang National University)
Lee, Sun-Youp (Korea Institute of Machinery and Materials)
Hwang, Jong-Deok (Woomin Technology Co.Ltd)
Kang, Dae-Kon (Department of Safety Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.26, no.6, 2020 , pp. 706-714 More about this Journal
Abstract
Currently, 90 % of the world's population breathes air with a fine dust content exceeding the World Health Organization's annual average exposure limit (10 ㎍/㎥). Global efforts have been devoted toward reducing secondary pollutants and ultra-fine dust through regulations on nitrogen oxides released over land and sea. Domestic efforts have also aimed at creating clean marine environments by reducing sulfur emissions, which are the primary cause of dust accumulation in ships, through developing and distributing environment-friendly ships. Among the technologies for reducing harmful emissions from diesel engines, electrostatic precipitator offer several advantages such as a low pressure loss, high dust collection efficiency, and NOx removal and maintenance. This study aims to increase the durability of a ship by improving equipment quality through failure mode effects analysis for the preventive maintenance of an electrostatic precipitator that was developed for reducing fine dust particles emitted from the 2,427 kW marine diesel engines in ships with a gross tonnage of 999 tons. With regard to risk priority, failure mode 241 (poor dust capture efficiency) was the highest, with an RPN of 180. It was necessary to determine the high-risk failure mode in the collecting electrode and manage it intensively. This was caused by clearance defects, owing to vibrations and consequent pin loosening. Given that pin loosening is mainly caused by vibrations generated in the hull or equipment, it is necessary to manage the position of pin loosening.
Keywords
FMEA (Failure Mode Effects Analysis); PM (Particulate Matter); Preventive Maintenance; ESP (Electrostatic Precipitator); Vessel;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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