Volume 37, Issues 5–6, April 2010, Pages 454–463


  • Young Ho Baea,
  • Kyeong Ok Kimb,
  • Byung Ho Choic, Corresponding author contact information, E-mail the corresponding author, E-mail the corresponding author
  • a Daewoo E&C Co., SihwaLakeTidalPowerPlantProject, Ansan 425-330, Republic of Korea
  • b Korea Ocean Research & Development Institute, 1270 Sadong, Ansan 426-744, Republic of Korea
  • c Department of Civil and Environmental Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon 440-746, Republic of Korea
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1. Introduction

2. Construction of the tidal power plant

3. Hydro-regime update and forecast

4. Conclusion




A TidalPowerPlant (TPP) is being constructed in the middle section of the existing LakeSihwa dike located near the southern Incheon Port in Korea. The project, which will be completed in 2010, is to harness the largest tidal energy in the Kyeonggi Bay in the eastern Yellow Sea. While noting the current progress in terms of plant construction, this paper outlines the overall project in the tidal regime and uses predictive local flow modeling. The results of two-dimensional finite element method simulations that predict the real-time tidal characteristics during the construction and after the completion of the tidalpowerplant are presented, including a method to estimate the electricity output from the plant in the future.


  • Tidalpowerplant;
  • SihwaLake;
  • Tidal modeling

Figures and tables from this article:

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Fig. 1. Location of the Lake Sihwa tidal power plant construction site with tidal datum planes.

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Fig. 2. Schematic of the turbo-generator and sluice gate.

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Fig. 3. A perspective view of the plant after completion.

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Fig. 4. Work procedure of the major construction stage (1) before construction, (2) silt protection, (3) cofferdam and diversion roads construction, (4) dewatering, (5) excavation for drywork, (6) Gantry Crane for temporary wharf*, (7) transport of turbo-generator*, (8) installation of turbo-generator, (9) construction of road over sluice gates, (10) detachment of diversion roads, (11) removal of cellular cofferdam, (12) operational test of turbo-generator. (*This original plan was changed to use special carrier to transport machineries between erection bay and crane sites.)

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Fig. 5. Photograph showing the construction progress of Sihwa tidal power plant.

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Fig. 6. Mesh of the Yellow Sea and the East China Sea continental shelf (YS) model.

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Fig. 7. Amplitude of disturbance waves due to the barrages.

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Fig. 8. Comparison of measured and simulated water levels at the Incheon Port.

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Fig. 9. Three types of tidal power generation: (a) single effect operation (ebb), (b) single effect operation (flood) and (c) double effect operation. Also, a detailed diagram of a single effect operation (flood) for the Sihwa TPP.

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Fig. 10. FEM mesh (a) at the cellular cofferdam for Sihwa tidal power generation on December 2005, (b) on January 2007 and (c) at completed construction.

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Fig. 11. Snapshot of the tidal flow of the cellular cofferdam construction site.

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Fig. 12. Snapshot of the flow velocity at the Sihwa tidal power generation plant during discharging (left) and generation (right)

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Fig. 13. Computed energy (up) and water level (down) at sea side (dashed line) and basin side (dotted).

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Corresponding author contact information
Corresponding author. Tel.: +82 31 290 7534; fax: +82 31 290 7549.