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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
Editor in Chief :
Volume & Issues
Volume 39, Issue 10 - Dec 2015
Volume 39, Issue 9 - Nov 2015
Volume 39, Issue 8 - Oct 2015
Volume 39, Issue 7 - Sep 2015
Volume 39, Issue 6 - Jul 2015
Volume 39, Issue 5 - Jun 2015
Volume 39, Issue 4 - May 2015
Volume 39, Issue 3 - Mar 2015
Volume 39, Issue 2 - Feb 2015
Volume 39, Issue 1 - Jan 2015
Selecting the target year
Development of a High Performance Bubble Jet Loop Heat Pipe Using the Enhanced Nucleate Boiling Surface in Evaporating Section
Kim, Jong-Soo ; Shin, Jong-Seok ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 363~367
DOI : 10.5916/jkosme.2015.39.4.363
In this study, a high performance Bubble Jet Loop Heat Pipe (BJLHP) was developed using the enhanced nucleate boiling surfaces in an evaporating section. A sintered tube and GEWA-T(Wieland) tube were used enhance nucleate boiling. The thermal performance of these BJLHP was compared with the conventional smooth tube BJLHP with an effective thermal conductivity. This experiment was conducted under the following conditions : working fluid, charging ratio and input power of R-141b, 50%vol., 75W and 100W, respectively. As a result, the effective thermal conductivity of BJLHP with a sintered tube in the evaporating section was 300% higher than the smooth tube BJLHP.
Simulation for the Prediction of Indicated Performances of a Gasoline Engine Using GT-POWER
Choi, Won-Jeong ; Ryu, Soon-Pil ; Yoon, Keon-Sik ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 368~373
DOI : 10.5916/jkosme.2015.39.4.368
As a preliminary study for the development of the gas fueled marine engine, prediction of indicated performances was carried out for a spark-ignition engine using commercial software, GT-POWER. The optimized models through a previous study were applied for the simulation of the intake and exhaust systems in a SI engine. The Spark-Ignition Wiebe model was used to calculate the burn rate in the cylinders and the modified Woschni model was used to calculate the heat transfer to the walls. The predicted performances, such as air delivery, cylinder pressures and indicated mean effective pressures under a range of operating conditions showed good agreement with the experiments.
The Effect of Liquid Water in Fuel Cell Cathode Gas Diffusion Layer on Fuel Cell Performance
Park, Sang-Kyun ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 374~380
DOI : 10.5916/jkosme.2015.39.4.374
In this paper, a dynamic model describing the 2 phase effect on the gas diffusion layer depending on load change of a fuel cell stack was developed to examine the effects of liquid water in fuel cell cathode gas diffusion layer on the fuel cell performance. For the developed model, 2 phase effect on the performance of a fuel cell stack depending on the load changes, concentration distribution of water vapor and oxygen inside a gas diffusion layer, the effect of the thickness and porosity of the gas diffusion layer on the fuel cell stack voltage were examined. As a result, a fuel cell stack voltage for the 2 phase model within the scope of the research become lower than that for the 1 phase model regardless of the load. Although oxygen molar concentration for the gas diffusion layer adjacent to the catalyst layer was the lowest, water vapor concentration is the highest. In addition, as thickness and porosity of the gas diffusion layer increased and decreased, respectively, the fuel cell stack voltage decreased.
Experimental Study on Combustion Characteristics of Biodiesel Waste Cooking Oil in Marine Diesel Engine
Cho, Sang-Gon ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 381~386
DOI : 10.5916/jkosme.2015.39.4.381
Environmental pollution and alternative energy has attracted increasing interest. The use of diesel engines is expected to increase in the world owing to their fuel economy. The problem of air pollution emissions from marine engines is causing a major concern in many areas. An alternative fuel was introduced as an environmentally friendly fuel to reduce the toxic emissions from conventional fossil fuels. Biodiesel fuel, which is a renewable energy is highlighted as environmentally friendly energy. This energy can be operated in regular diesel engines when it is blended with invariable ratios without making changes. In this study, a bio-diesel fuel was produced from waste cooking oil and applied to a marine diesel engine to examine the effects on the characteristics of combustion. Waste cooking oil contains a high cetane number and viscosity component, a low carbon and oxygen content. As a result, the brake specific fuel consumption was increased, and the cylinder pressure, rate pressure rise and rate of heat release were decreased.
A Study of the characteristics of NO
measurement and analysis methods of the SCR system for ships
Kim, Sung-Yoon ; Lee, Young-Ho ; Kim, Min ; Park, Sam-Sik ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 387~392
DOI : 10.5916/jkosme.2015.39.4.387
A method for measuring and analyzing the
in ships is described in
Technical Code 2008. The analysis device, as required by the Code, has been to use a Chemi-luminescence detection method or Heated Chemi-luminescence detection. on the other hand, selective catalytic reduction using
as a reducing agent has an interference effect on the analyzer, and causes measurement error. In this study, the Chemi-luminescence detection method was examined according to how it affects the concentration of
. Fourier transform infrared spectrometry analysis equipment and measurement methods were compared. In order to confirm the effect of the physical interference of the measuring device, it was confirmed by decomposing a measuring device. Consequently, white precipitate and moisture were generated inside the chemiluminescence detection system and I found that affecting interference. The influence of interference highlights the need to consider the minimized
Calculating Method of FRF with Sub-structure Mode Synthesis Method
Oh, Chang-Guen ; Park, Kyung-Il ; Park, Sok-Chu ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 393~398
DOI : 10.5916/jkosme.2015.39.4.393
A very important part in vibration analysis is to calculate the frequency response function (FRF). In general, a large sized or/and complicated structure has many thousands to millions of degrees. Therefore, the FRF cannot be calculated by the traditional analysis method using an inverse matrix. This paper presents a new FRF calculation method of a superstructure by synthesizing sub-structure modes, of which the DOF can be deduced by partitioning into some sub-structures. To confirm its analysis results, the method was applied to an assembled plate (
) with three diagonal sub-plates(
) in series and compared with the measured data. The test results have were comparable those of the calculated ones with an error less than 5%.
Influences of the Surface Pollution Cause by the Marine Growth on Ship Hulls on Engine Performance and Output
Jung, Kyun-Sik ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 399~404
DOI : 10.5916/jkosme.2015.39.4.399
The cost of fuel in ships has recently increased due to a rapid increase in international oil prices and international restrictions regarding the greenhouse effect generated from the burning of fuel. Therefore, different methods for changing the hull designs for improving energy efficiency, developing coating for reducing friction resistances, developing additives for improving engine thermal efficiency, and low-speed operation for reducing fuel consumption have been considered. The developments of high-speed, large-scale, and energy-saving vessels are deemed essential to adapt to the recent high oil price era. Therefore, it is important to analyze Precisely the qualitative and quantitative changes in the resistance value of the local areas of the hull surface. In this study, the engine performance before and after docking was analyzed to examine friction resistance caused by marine growth on the hull as a basic study for improving the energy efficiency. The result was then presented by comparing it with the previous data for 2.5 years between docks to investigate the performance of the main engine, the change in friction resistances and loads, the fuel consumption and ship speed.
A Study on Desing Simplification of Yoke Crank in a γ-type Stirling Engine
Kim, Shin-Hyo ; Kim, Ui-Chang ; Bark, Jin-Jae ; Bae, Han-Nah ; Cho, Dae-Kweon ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 405~411
DOI : 10.5916/jkosme.2015.39.4.405
Recently, according to the low-carbon green growth policy, the Stirling Engine has been increasing the interest of some sort of external combustion engines Stirling Engine is largely divided into three types
. Among them, a
-type engine is easy to design and can be applied variously. However, owing to the connection distance between the cylinder and the crank, there was a problem that
-type occupies a larger volume than the
-types. As one of the methods to solve this problem, we have to consider about the Yoke crank which have been applied mainly to the
-type. Because there are two advantages in not only reduction of engine volume but also parallelizing the cylinder. In this study, leading on from the existing design techniques for the Ross Yoke crank, this paper presents a simple method that can apply the yoke crank design of the
-type stirling engine.
A Study on the Installation of SCR System for Generator Diesel Engine of Existing Ship
Ryu, Younghyun ; Kim, Hongryeol ; Cho, Gyubaek ; Kim, Hongsuk ; Nam, Jeonggil ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 412~417
DOI : 10.5916/jkosme.2015.39.4.412
The IMO MEPC has been increasingly strengthening the emission standard for marine environment protection. In particular, nitrogen oxide (NOx) emissions of all ocean-going ships built from 2016 will be required to comply with the Tier-III regulation. In this study, a vanadia based SCR (Selective Catalytic Reduction) system developed for ship application was installed on a diesel engine for power generation of the training ship T/S SAENURI in Mokpo National Maritime University. For the present study, the exhaust pipeline of the generator diesel engine was modified to fit the urea SCR system. This study investigated the NOx reduction performance according to the two kind of injection method of urea solution (40%): Auto mode through the PLC (Programable Logic Control) and Manual mode. We were able to find the ammonia slip conditions when in manual mode method. So, the optimal urea injection quantity can be controlled at each engine load (25, 35, 50%) condition. It was achieved 80% reduction on nitrogen oxide. Furthermore, we found that the NOx reduction performance was better with the load up-down (while down to 25% from 50%) than the load down-up (while up to 50% from 25%) test.
Experimental Study on Reduction of Emissions for Marine Diesel Engines with a Double Post Injection
Lee, Won-Ju ; Choi, Jae-Hyuk ; Cho, Kwon-Hae ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 418~424
DOI : 10.5916/jkosme.2015.39.4.418
Marine Environment Protection Committee of the International Maritime Organization has decided to reinforce the NOx emission standards for ships passing an ECA(Emission Control Area) with Tier III standards from January 1, 2016. In this study, real-time measurements of the exhaust gas, cylinder pressure and fuel consumption were conducted at each load of a T/S Hanbada main engine of Korea Maritime and Ocean University, which is controlled by single injection and double post injection for reducing NOx emissions. The results showed that the quantity of CO2 and NOx increased in proportion to the engine load, whereas the CO concentration was inversely proportional to the engine load. In addition, double post injection decreased 10 % of P-max and reduced 25~30 % of the NOx emissions compared to single injection, whereas there was a trade-off relation, such as increase 3~5 % of SFOC (Specific Fuel Oil Consumption).
A Study of Thermo-Mechanical Analysis for the Design of High Pressure Piping System for Natural Gas Fuel Vessel
Park, Seong-Bo ; Sim, Myung-Ji ; Kim, Myung-Soo ; Kim, Jeong-Hyeon ; Lee, Jae-Myung ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 425~431
DOI : 10.5916/jkosme.2015.39.4.425
LNG (liquefied natural gas) is considered the best alternative eco-fuel, and many studies on the LNG fuel system have been performed to use LNG as the fuel for ships. For the LNG fuel supply system, natural gas transfers from the vaporizer to the engine in the gaseous state with a temperature of
and a pressure of 35MPa. Therefore, a structural safety evaluation of the double-walled pipelines considering thermal load is essential. In this article, an uniaxial tensile test for super duplex stainless steel, material for double-walled pipe, according to the annealing time was carried out to analyze the thermal effect. In addition, thermo-structural analysis of the high temperature-high pressure double-walled pipe with fixed supports that are now used widely was carried out to evaluate the structural safety. To minimize stress concentration of the connection point between the support and inner pipe, the shapes of the new type support that can slip through inner pipe were proposed, and the supports which has best structural performance was selected using the results from the thermo-structural analyses of new supports and an analysis of the whole double-walled pipeline was performed to ensure structural safety. These results can be used as a database for the design of double-walled pipelines and sliding support.
Computational Investigation of the Thermal Performances of Polymer Heat Sinks Passively-Cooled by Seawater for Thermoelectric Waste Heat Recovery
Kim, Kyoung Joon ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 432~436
DOI : 10.5916/jkosme.2015.39.4.432
This study computationally explored the thermal performance of passively-cooled polymer heat sinks utilizing seawater. Polymer heat sinks are proposed as cooling modules of the cold sides of thermoelectric generators for waste heat recovery. 3-D Computational Fluid Dynamics (CFD) modelling was conducted for a detailed numerical study. Polyphenylene sulfide (PPS) and pyrolytic graphite (PG) were selected for the base materials of polymer heat sinks. The computational study evaluated the performance of the PPS and PG heat sinks at various fin numbers and fin thicknesses. Their performances were compared with those of aluminum (Al) and titanium (Ti) heat sinks. The study results showed that the thermal performance of the PG heat sink was 3~4 times better than that of the Ti heat sink. This might be due mainly to the better heat spreading of the PG heat sink than the Ti heat sink. The effect of the number of fins on the performance of the PG heat sink was dissimilar to the cases of the PPS and Ti heat sinks. This result can be explained by the interrelationships among heat spreading, surface area enhancement, and fluidic resistance incorporating with an increase in the number of fins.
Comparison of Swirl Ratio Measured by Impulse Swirl Meter and Particle Image Velocimetry in a Steady Flow Bench of SI Engine
Lee, Sukjong ; Ohm, In Yong ; Sung, Jaeyong ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 437~442
DOI : 10.5916/jkosme.2015.39.4.437
The swirl ratio in a SI engine is investigated in a steady flow bench according to the measurement methods: an impulse swirl meter and particle image velocimetry (PIV). When measuring the swirl ratio using the PIV, the torque is evaluated based on the cylinder center and swirl center, respectively. The position of the measurement plane is considered. As a result, in the upstream, the swirl ratio measured by the impulse swirl meter is estimated to be larger than that from the PIV measurements due to the unstable vortex motions. Regarding the PIV measurements, the swirl ratio based on the cylinder center has been found to be lower than that based on the swirl center. On the other hand, the difference in swirl ratio has decreased smaller as the measurement plane moved downstream due to the stabilization of the vortex motion.
Effect of Vane Angle of Swirl Type Mixer on Flow Mixing and Pressure Drop in Marine Selective Catalytic Reduction Systems
Park, Taewha ; Sung, Yonmo ; Kim, Taekyoung ; Choi, Cheolyong ; Kim, Duckjool ; Choi, Gyungmin ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 443~448
DOI : 10.5916/jkosme.2015.39.4.443
A swirl type mixer was developed to improve the flow mixing performance of a marine selective catalytic reduction system. In this study, the swirl type mixer and a multi-staged swirl type mixer, in which the angle of the vanes at each stage is controllable were considered to provide the optimal region of angles for the mixers. The effects of the vane angles in both mixers on the uniformity index and pressure drop were investigated using a computational fluid dynamics simulation. In the swirl type mixer, the optimal conditions for the flow mixing performance were observed at vane angles from 30 to 60 degrees when vane angles could be adjusted between 10 to 80 degrees, however, the pressure drop increased continually with increasing vane angle of the mixer. On the other hand, control of the individual staged angles of the multi-staged mixer showed that it is possible to keep enhancing flow mixing performance while reducing the pressure drop.
Numerical Study of the Effect of Fan Arrangement on the Cooling Performance of the ONAF Type Radiator for Power Transformer
Kim, Kuk-Kyeom ; Suh, Yong Kweon ; Kang, Sangmo ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 449~455
DOI : 10.5916/jkosme.2015.39.4.449
Owing to the trend of an increase in capacity and high-efficiency requirement, the life and reliability of power transformer depend significantly on the amount of heat generation per unit volume and the degradation of insulation oil. These problems can be solved by enhancing the cooling performance of the radiator. The purpose of this study was to find a suitable position of fans for a better cooling effect given by the forced-convection of air in an ONAF (Oil Natural Air Forced) type transformer. In the simulation, commercial software was used for flow analysis, and the cooling passage of the oil was simplified to shorten the time taken for computation. With the diameter of the fan fixed at a constant value, the analysis was performed only by changing the position of the fans. As a result, a vertical position change of the fans does not affect the cooling performance significantly. However, the temperature drop given by the fans positioned on the front region of the transformer is larger than that on the rear region.
Experimental Investigation of the Development of a Rotor Type Slurry Pump
Park, Sang-Kyoo ; Yun, Jae-Geun ; Yangr, Hei-Cheon ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 456~462
DOI : 10.5916/jkosme.2015.39.4.456
The objective of this study was to develop an advanced pump technology using tornado and axial pumping principles without priming water. The developed rotor type slurry pump consisted of an electric motor, driving shaft and coupling, a rotor, an impeller, suction and discharge pipes. For the clean water test, the experimental results are presented for the discharge flowrate, electric power input and vacuum pressure with the rotor design parameters as a function of the motor rpm. The slurry discharge characteristics with the solid concentration of the cement slurry was performed. As the rotor diameter and height increase, the discharge flowrate and electric power input increase while the vacuum pressure in the suction pipe decreases. The rotor thickness had no significant effect on the discharge flowrate and electric power input. Slurries with more than 18 % solid concentration, which is the development factor, can be pumped.
Site Monitoring of Crews and Passengers on Board by the BLE and PLM Combination
Kwon, Hyuk-Joo ; Yang, Hyun-Suk ; Lee, Sung-Geun ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 463~467
DOI : 10.5916/jkosme.2015.39.4.463
When unforeseen accidents occur in a ship, it is important to save passengers safely and remove them from the accident area quickly. To solve such a situation, site information of passengers on board always must be identified. This paper implemented a site monitoring of crews and passengers based on the BLE and PLM combination, to prepare for unexpected accidents of the ships. This system was composed of BLE tag for crews, passengers and each room, PLM networks, data server, and monitoring PC. In this system, site information derived from the tag attached to the bodies and cabins of crews and passengers are transmitted through a power line network, and monitored on the screen of a monitoring PC. The proposed system guides them into the only authorized area considering the ship security and passengers` safety, and even has a special alarm call to warn them after entering an unauthorized area. This system enables the BLE-embedded tag battery to use for a long time because the BLE consumes low electric power, and can gain an economic advantage.
A Study of the High Efficiency Sea Water Cooling System for the Propulsion Diesel Engine of Warships
Kang, Byoung-Soo ; Lim, Young-Soo ; Jo, Kwan-Jun ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 468~472
DOI : 10.5916/jkosme.2015.39.4.468
Recently, there has been increasing interest in the efficient use of energy due to policies related to the reduction of greenhouse gas. This paper suggests a highly efficient sea water cooling system for the load-dependent control of a seawater pump depending on the load, to improve energy efficiency of the warship. This study models the propulsion diesel engine and simulation reflecting the characteristics of the warship operation state that checked the performance of high efficiency sea water cooling system. The simulation results revealed the cooling system of high efficiency with energy savings of approximately 53% compared to the existing cooling systems. These results can be used to improve the performance of the cooling system of the warship propulsion diesel engine in the future.
Implementation of the Equalization Circuits for High Bandwidth Visible Light Communications Using Phosphorescent White LED
Sohn, Kyung-Rak ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 473~477
DOI : 10.5916/jkosme.2015.39.4.473
In this paper, a commercial phosphorescent white light-emitting diode (WLED) visible light communication (VLC) system with an equalization circuit to achieve the high modulation bandwidth was designed and demonstrated. An analytical method to examine the performance of the equalizer was carried out using a general circuit-simulator, PSpice. The equalization circuit was composed of two passive filters with resisters and a capacitor and an active filter with an op-amp. Utilizing our post-equalization technology, the ~3.5 MHz bandwidth of phosphor WLED could be extended to ~25 MHz without using an optical blue-filter. In this VLC system with a single round-type WLED and a single PIN photo-diode, ASK data transmission up to 35 Mbps at a 1m free space distance was obtained. The resulting bit-error-rate was
, which is less than the forward error correction (FEC) limit of
Torque Calculation of Flux Switching Motor by Winding Function Theory
Kim, Jae-Gon ; Park, Han-Seok ; Woo, Kyung-Il ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 478~482
DOI : 10.5916/jkosme.2015.39.4.478
This paper describes the torque calculation of Flux Switching Motor using Winding Function Theory. First of all, the optimized new Flux Switching Motor was proposed to minimize the torque ripple. The simulation results by the Winding Function Theory were compared with those from Finite Element Analysis. The revised Flux Switching Motor and experimental setup were manufactured. The simulation result by the Winding Function Theory was compared with that of the experiment. The comparison validated the analysis method of the Flux Switching Motor by Winding Function Theory.
Long-term Monitoring System for Ship`s Engine Performance Analysis Based on the Web
Kwon, Hyuk-Joo ; Yang, Hyun-Suk ; Kim, Min-Kwon ; Lee, Sung-Geun ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 483~488
DOI : 10.5916/jkosme.2015.39.4.483
This paper implements a long-term monitoring system (LMS) for ship`s engine performance analysis (SEPA) based on the web, for the purpose of the communication speed and engine maintenance. This system is composed of a simulator, monitoring module with a multi channel A/D converter, monitoring computer, network attached storage (NAS), RS485 serial and wireless internet communication system. The existing products monitor the information transmitted from pressure sensors installed in the upper parts of each of engines in the local or web computer, but have a delay in the communication speed and errors in long-term monitoring due to the large volume of sampling pressure data. To improve these problems, the monitoring computer saves the sampling pressure data received from the pressure sensors in NAS, monitors the long-term sampling data generated by the sectional down sampling method on a local computer, and transmits them to the web for long-term monitoring. Because this method has one tenth of the original sampling data, it will use memory with small capacity, save communication cost, monitor the long-term sampling data for 30 days, and as a result, make a great contribution to engine maintenance.
Comparison Study of the Impact Response Characteristics of Fixed Cylindrical Offshore Structures Considering Seawater Fluid Region
Lee, Kangsu ; Hong, Keyyong ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 489~494
DOI : 10.5916/jkosme.2015.39.4.489
This research focused on minimizing the response of fixed cylindrical offshore structures to a ship impact considering the seawater fluid part. A collision between a ship and offshore structure is generally a complex problem and it is often impractical to perform rigorous finite element analyses to include all the effects and sequences during the collision. The structural behavior of a fixed cylindrical type offshore substructure with a seawater fluid part has a simpler response and small deformation due to the dissipation of impact energy. Upon applying the impact force of a ship to the cylindrical structure, the maximum acceleration, internal energy, and plastic strain are calculated for each load cases using Ls-dyna finite element software. In the maximum cases 2.0 m/s velocity, the response result for the structure was carried out to compare between having a fluid region and no fluid region. Fluid-structure interaction analysis was performed using the ALE method, which make it possible to apply a fluid region on the impact problem. The case of a fixed cylindrical type offshore structure without a seawater fluid part can be a more conservative design.
A Study of the Growth Characteristics of Starry Flounder Platichthys Stellatus in Accordance with the LED Wavelength
Jang, Jun-Chul ; Her, In-Sung ; Lee, Se-Il ; Yu, Young-Moon ;
Journal of the Korean Society of Marine Engineering, volume 39, issue 4, 2015, Pages 495~500
DOI : 10.5916/jkosme.2015.39.4.495
Currently the fish aquaculture industry of Korea is focused on the mass culture of flatfish (Paralichthys olivaceus) and and rockfish (Sebastes schlegeli) with completely controlled culture techniques. Recently, there has been considerable interest in new species development, such as the starry flounder (Platichthys stellatus). The value of starry flounder (Platichthys stellatus) as a raw fish increases with time because it is tasty, light, and bouncy. In this paper, the growth characteristics dependent on the LED wavelengths and the optimal growth conditions of the starry flounder were studied. In these experiments 4 different kinds of LED lighting, configurations were designed and prepared using red, green, blue and white, respectively. The fish aquaculture experiments were conducted over 10 weeks in four fish tanks, each installed with a different color of LED lighting. 10 starry flounders of 13 ~ 17g were placed into each tank. The effects of each color of light on the growth rate of the starry flounders were then examined. As a result, the starry flounders under the green LED lighting showed the highest growth rate, followed by the white, red, and blue LED lighting. Based on these results, a green light provides a suitable breeding environment for the starry flounder.