• Korean Architects
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• no.9 s.234
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• pp.80-84
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• 1988

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.23 no.6
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• pp.489-495
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• 2011

Fossil fuel energy has become a worldwide environmental issue due to its effect on global warming and depletion in its supply. Therefore, the interest in developing alternative energy source has been rising. Ocean energy, especially, has gained strength as an alternative energy source for its unlimited supply with low secondary risks. Among all the ocean energy, the west coast of Korea holds the field of large-scale energy development because of its distinctive tidal range. Tidal power plant construction at the sea may expedite multi development effects such as bridge roles, tourism resource effects and adjustability of flood inundation at the inner bay. This study introduces the validity of tidal power plant construction at Garilim Bay in west coast of Korea by examining anticipated hydraulic characteristics using EFDC model. Through EFDC numerical simulations, the feasibility of Garolim Bay as a tidal power plant field has been proved. And the most effective tidal power plant construction would be to install hydraulic turbine in the west side of bay entrance where ebb current is stronger, and install water gate in the east side of bay entrance where the flood current is superior.

• 한국신재생에너지학회:학술대회논문집
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• 2010.06a
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• pp.236.2-236.2
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• 2010

The tidal current power is the power plant by installing the turbine or rotor where the tidal speed is fast. This system converting the horizontal movement to rotating energy. Tidal power turbine is needed for the dam to utilize the pressure difference. However, tidal current power using the only flow. The tidal current power was evaluated as the impact on the marine environment surrounding was less and the development of eco-friendly way. In this article, we calculated the effect of tidal current turbine on the tidal power generating by mean of CFD. With these calculated results, we checked the possibility of tidal current power using tidal power plant the discharge gate.

• 한국신재생에너지학회:학술대회논문집
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• 2011.11a
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• pp.161-161
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• 2011

The design methodology of the sluice caisson structure is one of important factor that is closely related to the efficiency in tidal power generation. When the sluice caisson is designed to maximize the water discharge capability, it is possible to minimize the number of sluice caissons for attaining the water amount required for achieving the target power generation, which results in reduction of the construction cost for the sluice caisson structure. The discharge capability of sluice caisson is dependent on the geometrical conditions of an apron structure which is placed in both sides of the sluice caisson. In this study, we investigated numerically the variation of water discharge capability of sluice caisson according to the geometrical conditions of apron. Flow fields are simulated with FLOW-3D software using VOF method.

• Journal of the Korean Society for Marine Environment & Energy
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• v.18 no.4
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• pp.310-316
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• 2015

The intertidal area in Lake Sihwa formed after operation of Sihwa-Lake tidal power plant and the change of the area in Lake Sihwa by period were analyzed. For computation of the intertidal area, remote sensing techniques were applied and high resolution Digital Elevation Model (DEM) was generated with root mean square (rms) error 14.4 cm. The intertidal area was $165.1km^2$ in 1910s, $115.2km^2$ in 1991 before completion of Sihwa dyke, $5.6km^2$ in 2010 during the period on operation of sluice gate, and $20.3km^2$ in 2013 after operation of Sihwa tidal power plant. Intertidal in Lake Sihwa was nearly dissipated after completion of Sihwa dyke, but significantly increased with operation of Sihwa tidal power plant from April 2012 as developing a regular tide environment and increasing of sea water flux. The re-formation of tidal flat of Sihwa Lake is an uncommon case. This study that precisely analyzed on the area of artificially formed Sihwa tidal flat would be applicable for management and making conservation plan.

• The KSFM Journal of Fluid Machinery
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• v.11 no.4
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• pp.77-85
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• 2008

• 한국신재생에너지학회:학술대회논문집
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• 2005.06a
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• pp.456-459
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• 2005

삼천포 보령 당진 등 국내 대형 기력발전단지에서 냉각수로 사용되고 방류되는 해수는 약 150cms로 (100Mwe당 약 5cms) 약 3,000kW 이상의 수력에너지를 보유하고 있으나, 현재 활용되지 못하고 그대로 해양으로 방류되고 있어 이 소수력에너지의 개발 방안을 검토하였다. 발전소 온배수의 원활한 배수를 위한 설계 낙차와 함께 남서해안의 조위변화에 따른 낙차를 이용하는 것으로 소수력 발전 방식과 조력 발전 방식의 특징을 동시에 활용하는 것이다. 국내의 기력발전소 가운데 삼천포, 보령, 하동화력발전소에 대하여 소수력에너지 개발방안을 검토하였으며, 배수로에 댐을 축조하여 방류수 전량을 발전에 이용하는 댐식, 배수로 중간에서 방류수 일부를 취수하는 수로식, 배수로의 빠른 유속을 이용하는 조류식 발전 방안을 중심으로 각 발전소의 구체적 적용여건에 따라 다양한 대안을 검토하여 기술적 가능성 및 경제성이 충분함을 입증하였다.

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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• 2003.08a
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• pp.28-34
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• 2003

2003년 6월 말 현재 시화호의 조력 발전 사업이 이미 턴키방식으로 공개 입찰 단계로 들어갔으며 실질적인 건설 사업은 2004년부터 착수될 전망이다. 우리나라는 과거 30여 년에 걸친 타당성 조사가 수행된 바 있으며 1965년의 프랑스 Rance 조력발전소 건설에 이어 의의 깊은 조력에너지 개발사업이 될 것으로 전망된다. (중략)

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.29 no.5
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• pp.247-259
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• 2017

Numerical model with LPT (Lagrangian Particle Tracking) module was used to understand the variation of residence time in the outer sea of the Sihwa lake result operating from the Sihwa tidal power plant. Numerical model was composed in order to investigate the spatial distribution characteristics, the average residence time in each area was calculated by dividing the outer sea area of Sihwa lake into 4 areas. The average residence time of the areas appeared to be increase as it entered the areas located in the inner bay (13 days) from the area located in most outer sea (3 days) both before and during operation. Variation of average residence time by areas were increased in the area that was located in the most outer sea of during operation compared to before operation, and decreased in the other area. Artificial discharges from tidal power plant induces particle traps in the formation of vortex in the area located in the most outer seas, entrainment in the remaining areas, which affects variation in residence time. In other words, the jet flow generated during drainage and the change in the residence time due to the vortex and entrainment action indicate the increase horizontal mixing of water in the outer sea and in the inner bay.

• 전기의세계
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• v.13 no.4
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• pp.30-35
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• 1964

대부하 중심지인 서울에 가장 가까운 팔당수력지점은 재래식 kaplan수차의 설치대신에 불란서가 개척한 Bulb수차를 설치하므로서 그 경제적 가치가 타수력지점보다 우위에 있음이 밝혀졌으며 본 수력지점의 개발을 계기로 저낙차 수력지점에 대한 개발이 고창될 것으로 보며 Bulb형 수차발전기에 대한 기술적 제반사항과 경제적 가치를 소개하여 독자의 참고에 기하고져 한다. 후술할 본문 고문은 Bulb형 발전기를 설치한 불란서 초기의 Rance 조력발전소 계획과 이의 model 로 계획되어 가동된 saint-Molo의 Bulb형 발전기에서 얻은 경험을 중심으로 검토한 것이다.