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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Society of Marine Engineering
Journal Basic Information
Journal DOI :
Korean Society of Marine Engineers
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Volume & Issues
Volume 35, Issue 8 - Nov 2011
Volume 35, Issue 7 - Nov 2011
Volume 35, Issue 6 - Sep 2011
Volume 35, Issue 5 - Jul 2011
Volume 35, Issue 4 - May 2011
Volume 35, Issue 3 - May 2011
Volume 35, Issue 2 - Mar 2011
Volume 35, Issue 1 - Jan 2011
Selecting the target year
Real Time Monitoring of Energy Efficiency Operation Indicator on Merchant Ships
Barro, Ronald Dela Cruz ; Kim, Jun-Seong ; Lee, Don-Chool ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 301~308
DOI : 10.5916/jkosme.2011.35.3.301
International Maritime Organization (IMO) proposed the Energy Efficiency Operation Indicator (EEOI) in 2005 and the Energy Efficiency Design Index (EEDI) in 2008 so as to address emission concern and regulation. Likewise, Ship Energy Efficiency Management Plan (SEEMP) and Greenhouse Gas (GHG) monitoring and management are also becoming an issue lately. This paper introduces the energy efficiency design index (operation indicator) monitoring system (EDiMS) software can continuously monitor
, and PM values emitted from ship. The accurate inventory of ships GHG can be obtained from base of emission result during the engine shop test trial and the actual monitoring of shaft power and ship speed. In addition, the ability to store all exhaust emission and engine operation data can be applied as the useful tool of the inventory work of air pollution and ship energy management plan for the mitigation or reduction of ship emissions.
Active Vibration Control of a Plate Using TMS320C6713DSK
Choi, Hyeung-Sik ; You, Sam-Sang ; Her, Jae-Gwan ; Seo, Hae-Yong ; Tran, Ngoc-Huy ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 309~316
DOI : 10.5916/jkosme.2011.35.3.309
This paper deals with the experimental study of the vibration suppression of the smart structures. First, a new high-speed active control system is presented using the DSP320C6713 microprocessor. A peripheral system developed is composed of a data acquisition system, A/D and D/A converters, piezoelectric (PZT) actuator/sensors, and drivers using PA 95 for fast data processing. Next, the processing time of the peripheral device is tested and the corresponding test results are provided. Since fast data processing is very important in the active vibration control of the structures, achieving the fast loop times of the control system is focused. The control algorithm using PPF in addition to FIR filter is implemented. Finally, numerous experiments were carried out on the aluminum plate to validate the superior performance of the vibration control system at different control loop times.
Effect of the Intake Valve Opening Timings and Fuel Injection Pressures on the Exhaust Emission Characteristics of a Gasoline Engine at Part Load Condition
Lee, Hyung-Min ; Jeong, Yeon-Hwan ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 317~322
DOI : 10.5916/jkosme.2011.35.3.317
This work has investigated the exhaust emissions such as Total Hydrocarbon (THC), Nitrogen Oxides(NOx), and Particulate Matter (PM) characteristics emitted from the tail-pipe of a continuously variable valve timing (CVVT) gasoline-fueled engine with different intake valve opening timings and injection pressures at the part load condition. Valve overlap period was varied from
and fuel injection pressure was increased from 3.5 bar to 5.0 bar. THC and NOx emissions decreased as intake valve opening timing was advanced regardless of fuel injection pressure. When the fuel was injected with the condition of 5.0 bar at all of valve overlap ranges, THC levels were reduced by 55%. NOx concentrations were diminished about 75% as valve overlap increased. PM size distributions were analyzed as bi-modal type of the nucleation and accumulation mode. Comparing with fuel injection pressures, PM emission levels were decreased at high pressure injection of 5.0 bar condition.
Formation of SiO:CH Ultra Water Repellent Thin Films by Inductively Coupled RF PECVD
Yun, Yong-Sup ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 323~328
DOI : 10.5916/jkosme.2011.35.3.323
In this paper, the UWR thin films were prepared by RF PECVD. The relationships between the deposition conditions and the film properties such as morphological and chemical properties of the films were discussed. Moreover, from the analysis of plasma diagnostics using OES, formation mechanism of UWR thin films was discussed.
A Study on the Automatic Sensing Device for Gas Leakage of Cooling Plate Using the Microprocessor System
Wang, Jee-Seok ; Yoon, Hee-Jong ; Kang, Ki-Seong ; Kim, Jong-Do ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 329~334
DOI : 10.5916/jkosme.2011.35.3.329
The cooling water circulation plates had been used to drop the temperature of refractory outside shell of common cooling system by using cooling plate or stave type. When they are attacked by surrounding gas, they are corroded and the water flows in the refractory due to leakage of water. So, the life of refractory material is shortened and changed due to the worse conditions of cooling system. The automatic sensing device for water leakage of cooling plate is developed to check the position of trouble by using the microprocessor system when cooling water leak and gas are flowed into the cooling plate through the leakage position. The flowed gas is detected in the micro-process system which delivers the detected position of cooling plate or stave to main control room through the wireless-radio relay station. This system can be possible to detect the position of cooling plate or stave against the water leakage part immediately and then deliver the signal to main control room by using the microprocessor system and wireless-radio relay station. This system will be developed in changing the working condition from manual system to unmanned auto alarm system.
A Study on Control and Monitoring System for Building Energy Management System
Oh, Jin-Seok ; Bae, Soo-Young ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 335~340
DOI : 10.5916/jkosme.2011.35.3.335
Building energy saving is one of the most important issues in these days. Control algorithm for energy saving should be designed properly to reduce power consumption in building. Recently, building energy system consists of hybrid energy system coupling with RE (Renewable Energy) source. In this paper, an optimum control algorithm for building energy saving is applied to BEMS (Building Energy Management System) by using an outdoor air temperature prediction strategy. BEMS coupling with renewable energy can control HVAC (Heating, Ventilating and Air-Conditioning) system effectively. In order to verify the effectiveness of building energy saving, BEMS was tested for several months at a laboratorial chamber with an air conditioner, fan and heater. To this end BEMS embedded control algorithm has been tested successfully.
A Hybrid Metaheuristic for the Series-parallel Redundancy Allocation Problem in Electronic Systems of the Ship
Son, Joo-Young ; Kim, Jae-Hwan ;
Journal of the Korean Society of Marine Engineering, volume 35, issue 3, 2011, Pages 341~347
DOI : 10.5916/jkosme.2011.35.3.341
The redundancy allocation problem (RAP) is a famous NP.complete problem that has beenstudied in the system reliability area of ships and airplanes. Recently meta-heuristic techniques have been applied in this topic, for example, genetic algorithms, simulated annealing and tabu search. In particular, tabu search (TS) has emerged as an efficient algorithmic approach for the series-parallel RAP. However, the quality of solutions found by TS depends on the initial solution. As a robust and efficient methodology for the series-parallel RAP, the hybrid metaheuristic (TSA) that is a interactive procedure between the TS and SA (simulated annealing) is developed in this paper. In the proposed algorithm, SA is used to find the diversified promising solutions so that TS can re-intensify search for the solutions obtained by the SA. We test the proposed TSA by the existing problems and compare it with the SA and TS algorithm. Computational results show that the TSA algorithm finds the global optimal solutions for all cases and outperforms the existing TS and SA in cases of 42 and 56 subsystems.