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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society of Marine Engineering
Journal Basic Information
Journal DOI :
Korean Society of Marine Engineers
Editor in Chief :
Volume & Issues
Volume 34, Issue 8 - Nov 2010
Volume 34, Issue 7 - Nov 2010
Volume 34, Issue 6 - Sep 2010
Volume 34, Issue 5 - Jul 2010
Volume 34, Issue 4 - May 2010
Volume 34, Issue 3 - May 2010
Volume 34, Issue 2 - Mar 2010
Volume 34, Issue 1 - Jan 2010
Selecting the target year
Performance Analysis and Emission Characteristics of a Bi-fuel Using Spark Ignition Engine
Mahmud, Md. Iqbal ; Cho, Haeng-Muk ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 351~359
DOI : 10.5916/jkosme.2010.34.3.351
Bi-fuel system in a spark ignition engine (SIE) is a rising phenomena in today's automobile technology. In a gasoline driven vehicle, alternatively adoption of compressed natural gas (CNG) could be used as a potential substitute to meet the energy requirement and this is possible by some minor changes in the hardware of the existing engine. Gasoline engine is widely used in the passenger cars, light, medium and heavy duty vehicles but the consumption status of the petroleum is decreasing worldwide and at the same time environmental pollution from automobiles is seriously establishes as a threat for every nation in respect to global warming and climate changes. Now-a-days most vehicles operate using CNG for its popularity stems, clean burning properties and cost effective solution compared to other alternative fuels. It refers as a good gaseous fuel because of its high octane number and self ignition temperature. Though the power output is slightly lesser than the gasoline fuel; its thermal efficiency is better than the gasoline for the same SIE. The research paper highlights the reduction of CO, reasonable outcomes of HC emissions with minor increase in
emissions compared with the gasoline fuel to bi-fuel mode in the SIE that meets the emission challenges.
A Study on Numerical Simulation of Gaseous Flow in SCR Catalytic Filter of Diesel Exhaust Gas Aftertreatment Device
Bae, Myung-Whan ; Syaiful, Syaiful ; Mochimaru, Yoshihiro ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 360~368
DOI : 10.5916/jkosme.2010.34.3.360
A SCR catalytic filter system is used for reducing
and soot emissions simultaneously from diesel combustors. The amount of ammonia (as a reducing agent) must be controlled with the amount of
to obtain an optimal
conversion. Hence, gas mixing between ammonia and exhaust gases is vital to ensure that the SCR catalyst is optimally used. If ammonia mass distribution is not uniform, slip potential will occur in rich concentration areas. At lean areas, on the other hand, the catalyst is not fully active. The better mixing is indicated by the higher uniformity of ammonia mass distribution which is necessary to be considered in SCR catalytic filter system. The ammonia mass distributions are depended on the flow field of fluids. In this study, the velocity field of gaseous flow is investigated to characterize the transport of ammonia in SCR catalytic filter system. The influence of different injection placements on the ammonia mass distribution is also discussed. The results show that the ammonia mass distribution is more uniform for the injector directed radially perpendicular to the main flow of inlet at the gravitational direction than that at the side wall for both laminar (Re = 640) and turbulent flows (Re = 4255). It is also found that the mixing index decreases as increasing the heating temperature in the case of ammonia injected at the side wall.
Electrochemical Response of Polymer Actuators using Finite Element Formulation and ANSYS/Emag
Kang, Sung-Soo ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 369~375
DOI : 10.5916/jkosme.2010.34.3.369
The two-dimensional finite element formulation for the basic field equations governing electrochemical responses of ionic conducting polymer-metal composite(IPMC) actuators is proposed in the present study. Biaxial deformation of a platinum plated Nafion actuator having 4 electrodes is dominated by electro-osmosis of hydrated ions and self-diffusion of free water molecules. Some numerical studies for IPMC actuators with electric field are carried out in order to show the validity of the proposed formulation and electric field analysis for the initial condition of total charge distribution are conducted using commercial code ANSYS/Emag.
Development of Dual Mode (Autonomous and Remote Control) Unmanned Surface Vehicle
Kim, Hyo-Il ; Jun, Seung-Hwan ; Moon, Serng-Bae ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 376~382
DOI : 10.5916/jkosme.2010.34.3.376
These days, a study on 'Unmanned Surface Vehicle (USV)' has made very active progress in many countries. Even if it is being expected that there will be a great demand of USV for wide field, such as military operation, private sector, and etc., the study of USV in Korea is still at an early stage. For this reason, we have made a very small USV which is composed of dual mode (autonomous and remote control). The TCP/IP communication is applied to the USV.
Land Based Test of Ballast Water Treatment System by Ozonation
Park, Sung-Jin ; Yoon, Seung-Je ; Kim, In-Soo ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 383~390
DOI : 10.5916/jkosme.2010.34.3.383
This study is currently giving priority to developing the ship's ballast water treatment system using ozone (Ozone BWTS). The Ozone BWTS was tested in a full scale land-based mobile barge to evaluate performance according to the IMO G8 Guidelines. Test cycles using the mobile-barge were conducted in seawater and brackish water in the vicinity of the Port of Busan and Nakdong River, Republic of Korea. All tests were conducted according to the requirements of the G8 Guidelines. Test results show that the Ozone BWTS meets the Ballast Water Performance Standard contained in Regulation D-2 of the IMO Ballast Water Management Convention, as well as all of the operational, safety, and environmental testing requirements of the G8 Guidelines, as required for type approval of IMO. The study results show that the Ozone BWTS is capable of meeting the Ballast Water Performance Standard under Regulation D-2 of the International Convention for the Control and Management of Ships’ Ballast Water and Sediments, and also the more stringent standards being proposed under US legislation.
Shipboard Test of Ballast Water Treatment System by Ozonation
Park, Sung-Jin ; Kim, Ki-Wook ; Kim, In-Soo ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 391~398
DOI : 10.5916/jkosme.2010.34.3.391
This study is currently giving priority to developing the ballast water treatment system using ozone(Ozone BWTS). The Ozone BWTS, were equipped on the real merchant vessel named as M. V. Hyundai Hong Kong to carried out shipboard tests of ballast water treatment system in accordance with orders of IMO G8 Guidelines. The study results show that the Ozone BWTS is capable of meeting the Ballast Water Performance Standard under Regulation D-.2 of the International Convention for the Control and Management of Ships’ Ballast Water and Sediments, and also the more stringent standards being proposed under US legislation.
Degradation and Neutralization of Total Residual Oxidant (TRO) in the Treated Ballast Water by Ozonation
Park, Sung-Jin ; Bin, Jung-In ; Lee, Eon-Sung ; Kim, In-Soo ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 399~406
DOI : 10.5916/jkosme.2010.34.3.399
The aims of this study are to provide data on the ozone dosage control system and TRO sensor performance, to assess the performance of the degradation of total residual oxidant (TRO) neutralizer and to provide data on degradation rates of TRO in the ballast tanks, following treatment by the Ozone BWTS. This study includes the results of an evaluation of the TRO neutralizer, which was tested on the test barge. Accordingly, it has undertaken the evaluation of TRO degradation rates following treatment by the Ozone BWTS.
A Study on Fusion and Visualization using Multibeam Sonar Data with Various Spatial Data Sets for Marine GIS
Kong, Seong-Kyu ;
Journal of the Korean Society of Marine Engineering, volume 34, issue 3, 2010, Pages 407~412
DOI : 10.5916/jkosme.2010.34.3.407
According to the remarkable advances in sonar technology, positioning capabilities and computer processing power we can accurately image and explore the seafloor in hydrography. Especially, Multibeam Echo Sounder can provide nearly perfect coverage of the seafloor with high resolution. Since the mid-1990's, Multibeam Echo Sounders have been used for hydrographic surveying in Korea. In this study, new marine data set as an effective decision-making tool in various fields was proposed by visualizing and combining with Multibeam sonar data and marine spatial data sets such as satellite image and digital nautical chart. The proposed method was tested around the port of PyeongTaek-DangJin in the west coast of Korea. The Visualization and fusion methods are described with various marine data sets with processing. We demonstrated that new data set in marine GIS is useful in safe navigation and port management as an efficient decision-making tool.