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http://dx.doi.org/10.5762/KAIS.2021.22.3.51

A Feasibility Study of Seawater Injection Nozzle Prototype Development by Using 3D Printing  

Yoon, Seok-Tea (Ship Infra-Red Signature Research Center, Dong-Eui University)
Park, Jong-Chun (Dept. of Naval Architecture & Ocean Engineering, Busan National University)
Cho, Yong-Jin (Dept. of Naval Architecture & Ocean Engineering, Dong-Eui University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.3, 2021 , pp. 51-57 More about this Journal
Abstract
The seawater cooling system of naval ships is installed to remove the toxic substances generated by CBR (Chemical, Biological, and Radiological) warfare and reduce the infrared signature of naval ships from outside the hull. The dispersion range of the nozzle is determined according to the injection pressure of seawater and the nozzle type. Therefore, it is necessary to select the appropriate injection pressure and design the optimal nozzles to increase the seawater dispersion area and maximize the efficiency of the cooling system. In this study, the applying feasibility of 3D printing technology to produce an injection nozzle for the seawater cooling system was examined. To this end, the extruded plastic specimens were fabricated by 3D printing, and the physical properties of the specimens were estimated through tensile testing. After this, the strain and stress of the nozzle as a function of the pressure were simulated by applying the estimated results to the finite element analysis. The finite element analysis results showed that the nozzle remained within the elastic range at the optimal pressure. The nozzle was estimated to be structurally stable, and the possibility of this study was confirmed.
Keywords
3D Printing; Feasibility; Finite Element Method; Seawater Injection Nozzle; Tension Test;
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