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http://dx.doi.org/10.5394/KINPR.2016.40.4.173

Preliminary Study on Factor Technology of Selective Catalytic Reduction System in Marine Diesel Engine  

Park, Yoon-Yong (Dep. of Naval Architecture and Marine Engineering Mokpo National University)
Song, Ha-Cheol (Dep. of Naval Architecture and Ocean Engineering Mokpo National University)
Ahn, Gi-Ju (S&K Heavy Industry Corporation)
Shim, Chun-Sik (Dep. of Naval Architecture and Ocean Engineering Mokpo National University)
Publication Information
Journal of Navigation and Port Research / v.40, no.4, 2016 , pp. 173-181 More about this Journal
Abstract
From 2016, controls on reduction of NOx and SOx emissions from the vessels that are operated in the emission control area were tightened. The selectivity catalytic reduction system of the denitrification equipment which NOx among the above controlled materials is very effective and used commercially very much. But it has the disadvantage that CSR is activated at high temperatures. Therefore, the SCR and SCR activation instrument that can react even at low temperatures by using micro-nano bubbles so that the above problems can be minimized were developed. And the computational fluid dynamics technique was used by ANSYS-CFX package to prepare the plan that improves the SCR system's efficiency. Simulation for the viscous flow analysis of the SCR system was executed by applying the Navier-Stokes equation to it as a governing equation. For the SCR system's shape, 3D modeling was done by using CATIA V5. SCR jet nozzle's position was checked by changing it to the intervals of 1/3, 1/2, and 2/3 from the inlet of the vent pipe to compare the SCR system's efficiency. And the number of nozzles was compared and analyzed by simulating 4, 6, and 8 holes to check an effect of the number on the SCR system's efficiency. The simulation result has found that the closer nozzles are to the inlet of the vent pipe and the more nozzles are, the more efficiency is improved.
Keywords
Urea; Activation; Nano-bubble; Hydrogen; Computation Fluid Dynamics; Flow Uniform; Selectivity Catalytic Reduction;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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