• 한국산학기술학회논문지
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• 제15권9호
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• pp.5826-5834
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• 2014

본 연구는 인천 북항과 염하수로 사이의 해역을 대상으로 인천 영종도 준설토투기장건설과 향후 인천만조력발전소 동측방조제 건설시 흐름차폐로 인한 이 해역의 해수유동변화에 대해 연구를 하였다. 이 해역의 해수유동에 대한 예측은 인천북항 영종도 준설토투기장 건설전, 후 상태와 인천만조력발전소 동측방조제를 건설한 경우를 예상하여 3가지 경우에 대해서 수리모형실험을 수행하고, 현장관측치와 비교하여 흐름을 분석하였다. 수치실험결과 영종도 준설투기장건설전, 후 상태에서는 유향과 유속이 비슷한 양상으로 나타나고 있으며, 인천만조력발전소 건설시 동측방조제를 건설한 경우에는 경기만과 흐름차폐로 인하여 흐름 양상이 크게 변화되고 있음을 알았다. 즉, 흐름은 남북방향이 되고, 하류인 경인아라뱃길 주 항로가 되는 호도 하류부인 A, B, C지점에서는 유속이 다소 증가되고 있고, 염하수로 하류부(D)에서는 오히려 유속이 감소되고 있다. 그리고, 세어도 서쪽해역과 방조제 동측해역에서는 유속이 완만한 선회류가 발생하고 있음을 알았다. 본 연구는 인천만조력발전소 건설계획과 향후 경인아라뱃길 운영을 위한 기초자료로 활용이 가능할 것으로 사료된다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2006년도 춘계학술대회
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• pp.505-508
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• 2006

Recently, concern for tidal power is being increased by newly recycled energy. It is important to decide on the maximum power estimate operation and it's stop by applying the difference of water level between tide level and artificial reservoir for the administration of tidal development. For maximum output of power through turbine generator, administrative variables and process on efficiency of hydraulic turbine and inflow discharge of reservoir is quite complicated because it is run through the connection of discharge-gate and turbine On the development of this model, the administrative process is decided, Operation block is presented for it's maximum power estimate.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2011년도 추계학술대회 초록집
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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.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년도 춘계학술대회논문집
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• pp.514-517
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• 2008

An hydraulic experiment was carried out in an open channel flume in order to investigate the water discharge capability of the sluice caisson for tidal power generation, which greatly affects the economical efficiency of the construction of a tidal power plant. To predict the influence of change in the major design parameters relating to the sluice shape on the water discharge capability of the sluice, the experiment was carried out very precisely. The experiment was carried out for the six different sluice models of different widths and bottom heights of the sluice throat section. The experimental data showed that the water discharge generally increased by increasing the width of the throat section if the side shape of the sluice was the same. In addition, the coefficient of discharge was larger when the bottom height of the throat section was higher for the two bottom heights that were tested.

• 전기학회논문지
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• 제61권3호
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• pp.413-421
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• 2012

This paper proposes the design and implementation of fluid flow generation system by using polypropylene(PP) water capture, which harvests electric energy from the kinetic energy of tidal current or water flow and drives the desired load, and applies it to the discharge drain of Hadong thermal power plant. This experimental system is composed of water captures, driving wheel, gear trains, 10[kW] synchronous generator, and three phase rectifying circuit which drives lamp load for test. The proposed water capturing system which is composed of water captures, rope and driving wheel, rotates as caterpillar according to water flow. This system is very easy to manufacture and more economical than another type of tidal current turbines such as conventional propeller and helical type. Also, we estimated the available fluid flow energy that can be extracted from the cooling water in discharge drain based on drain's cross-sectional area. Therefore, this paper confirms the validity of proposed fluid flow generation system with water captures and the possibility of its application for renewable energy generation in discharge drain of thermal power plant, from the obtained performance characteristic of this energy conversion system.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 춘계학술대회
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• pp.617-620
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• 2007

The performance evaluation of the Samcheonpo small-hydropower plant constructed on the October 25th,2006, was carried out focused on the turbine and generator efficiency analysis by using the measurement data. The unreasonable and unrealistic efficiency results are occurred in some periods because of the data variability, uncertainty, and measurement errors and mistakes. Whereas, the big mismatch is the tidal elevation predicted in the design processes. The difference between the measured and estimated tidal elevation is obvious during the low water period. It should be considered and checked in depth on the efficiency analysis of the planned and constructing small-hydro power plants in other coastal areas.

• 한국지리정보학회지
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• 제23권4호
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• pp.184-207
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• 2020

본 연구에서는 GIS기반 적지분석을 적용하여 조류-양수 융합발전시설의 설치후보지역을 도출하는 것을 목표로 하였다. 연구대상지역은 진도 일대 서남해 해역이며, 융합발전시설의 설계 및 설치 특성을 고려하여 적지분석을 위한 고려인자를 도출하였다. MOHID(Modelo HIDrodin?mico)를 이용하여 조류 수치모의를 수행하였고, 모의 결과를 공간자료로 변환하였다. 이후 본 연구에서는 제안하는 GIS기반 중첩분석 방법을 적용하여 설치후보지역을 도출하였다. 연구 결과에서 총 10개 지역이 후보지역으로 도출되었으며, 이 중 진도, 성남도, 하조도가 상대적으로 넓은 해역에 대해 조류-양수 발전기 설치가 가능한 것으로 판단되었다.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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• pp.67-73
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• 2006

Uldolmok waterway is famous for its strong tidal current with maximum current of about 12knots, which is located between the Chindo island off the southwestern tip of Korean peninsula and mainland. A serious of field observations, along with numerical modeling, have been carried out over the last several years, in order to understand the tidal dynamics and to examine the related variables according to the tidal current power plant (TCPP) operation.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.331-335
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• 2004

This study is focused to analyze the movement of thermal effluent dischargeed from nuclear power plant by season, ebb and flow, and before and after foundation of tide embankment using thermal infrared band image of 28 scenes observed from Landsat from 1987 to 2004, which is the early stage of operation of young-kwang nuclear power plant. In diffusion of thermal effluent discharge by seasons, spring and summer is spreading further than autumn and winter. It is considered to distribute widely mixed with thermal effluent discharge and hot water, which is distributed naturally along the seaside. It is known the fact that tidal currents control the direction of diffusion of thermal effluent discharge by the change of ebb and flow. Namely, it is distributed widely on the Southwest direction along the seaside by tidal currents when ebb and, it is moved widely on the Northeast direction along the seaside by tidal current when flood. However, in the early stage of flood current, the mainstream of thermal effluent discharge is spread on Southwest direction and, the direction is changed on North­east way when the latter period of flood current. Similarly, in the early stage of ebb current, the mainstream of thermal effluent discharge is spread on Northeast direction and, the direction is changed on Southwest direction when the latter period of ebb current. As the result of comparing to the diffusion pattern of thermal effluent discharge before and after the foundation of seawall, discharged thermal effluent from the drain of plant by the foundation of dike is shown as curved circle pattern on Northeast to West direction from the ending portion of the seawall.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2018년도 공동국제학술발표회
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• pp.45-45
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• 2018