ISFV12 Gottingen, Germany The Korean Society of Marine Engineering Fall Conference Busan Port International Passenger Terminal, November. 3-5, 2016 A Study on Noise Characteristics depending on Inlet Position of the Marine Diesel Engine Exaust Muffler Sun, J. S. (Korea Maritime University), Park, J. Y. (Korea Maritime University) Kang, D. L. (Hyundai Motor Co. Ltd.,) and Kim, U. K. (Korea Maritime University) 2. Conditions 3. Contents 1. Backgrounds & Purpose Type LT-B (Total Pressure) ▶ Design Specification ▶ Calculation Condition - Inlet Gas Condition * Density : 0.502 [kg/m3] * Mass-Flow : 4.4339 [kg/s] * Viscosity : 3.2604e-5 [kg/m-s] * Temperature : 703.15 [K] - Outlet Gas Condition * Pressure : 0 [Pa] Engine Model Gas Amount [kg/hr @100% Load] Gas Temperature [℃] Remark 16V4000M90 15,962 430 V type, 16 cylinder Bore × Stroke : 165×190 1600~2100RPM 　 ▶ Backgrounds ▶ Purpose Type LT-B (Transmission Loss) Type LT-B (Velocity Magnitude) Type FC-B (Total Pressure) Type FC-B (Velocity Magnitude) Type FC-B (Transmission Loss) Type LC-B ( Total Pressure ) Type LC-B (Velocity Magnitude) 4. Results & Discussion Type LC-B (Transmission Loss) ▶ Total Pressure Summary Model LT - B FC - B LC - B Inlet Pressure 1863.22 [Pa] 1896.78 [Pa] 1997.18 [Pa] Outlet Pressure 1343.44 [Pa] 1458.76 [Pa] 1423.20 [Pa] Pressure Drop 519.78 [Pa] 438.02 [Pa] 573.98 [Pa] 52.91 [mmAq] 44.66 [mmAq] 58.52 [mmAq] CONCLUSIONS CONCLUSIONS 1 CONCLUSIONS 2