DOI QR코드

DOI QR Code

동해 연안 파력 부존량의 시간적 및 공간적인 변동 양상

Temporal and Spatial Variations in the Wave Energy Potential of the East Coastal Seas of Korea

  • 정원무 (한국해양과학기술원 연안개발.에너지연구부) ;
  • 조홍연 (한국해양과학기술원 해양환경.보전연구부) ;
  • 오상호 (한국해양과학기술원 연안개발.에너지연구부) ;
  • 김상익 (한국해양과학기술원 연안재해.재난연구센터)
  • Jeong, Weon Mu (Coastal Development & Ocean Energy Research Division, Korea Institute of Ocean Science & Technology) ;
  • Cho, Hongyeon (Marine Environments & Conservation Research Division, KIOST) ;
  • Oh, Sang Ho (Coastal Development & Ocean Energy Research Division, KIOST) ;
  • Kim, Sang Ik (Coastal Disaster Research Center, KIOST)
  • 투고 : 2013.09.10
  • 심사 : 2013.10.28
  • 발행 : 2013.10.31

초록

본 연구에서는 동해 연안의 9개소에서 관측된 파랑 자료를 사용하여 파력 부존량을 평가하였으며 기존의 연구 결과와 비교하였다. 동해 연안에서는 파력 부존량의 계절 변화가 동계 6.4 kW/m, 하계 1.2 kW/m 정도로 공간적인 변화인 2.5~4.3 kW/m보다 크게 나타나고 있으며, 거의 대부분의 정점에서 하계 6~7월의 파력이 가장 작게 나타났다. 연 평균 파력 부존량 추정치는 동해 중부 해역에 위치하고 있는 묵호와 죽변 지점에서 4.3 kW/m 정도로 가장 크게 나타났으며, 진하 지점에서 2.5 kW/m로 가장 작게 나타났다. 또한 파력 부존량의 분포도 기존의 후측자료를 이용하여 제시된 남쪽에서 북쪽 방향으로의 감소 경향과는 달리 중부해역에서 가장 크고, 중부해역을 기준으로 남쪽, 북쪽 방향으로 모두 감소하는 경향을 보이는 것으로 파악되었다.

In this study, the wave energy potential (WEP) was evaluated using the wave data measured at nine stations along the Korean east coast and compared with the results of previous studies. Along the Korean east coast, seasonal variations in the WEP were around 6.4 kW/m in winter and 1.2 kW/m in summer, greater than spatial variations of 2.5~4.3 kW/m. In most stations, the wave power during June to July were shown to be smallest. The estimated annual average WEP was greatest in the Mukho and Jukbyeon stations located in the middle of the Korean east coast at around 4.3 kW/m, and smallest in the Jinha station at around 2.5 kW/m. The results found using the previous hindcast data showed WEP having a tendency to decrease from south to north. However, in this study, the WEP showed a tendency of being greatest in the middle of the Korean east coast and decreasing in both north and south directions.

키워드

참고문헌

  1. Drew B, Plummer A. and Sahinkaya, M. N. (2009). A review of wave energy converter technology, Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 223(8), 887-902.
  2. Hong, K., Shin, S-H. and Hong, D-C. (2007). Wave energy absorption efficiency of pneumatic chamber of OWC wave energy converter, J. of the Korean Society for Marine Environmental Engineers, 10(3), 173-180.
  3. Hong, K-Y., Ryu, H-J, Shin, S-H., and Hong, S-W. (2004). Wave energy distribution at Jeju Sea and investigation of optimal sites for wave power generation, J. of Korean Society of Ocean Engineers, 18(6), 8-15.
  4. Jeong, W.M., Oh, S-H, ee, D.S. and Lee, D.Y. (2007). Comparison of wave power resources in the coastal zone of Korean East Sea estimated by using field measurement wave data, J. of Korean Society for New and Renewable Energy, 3(3), 28-35.
  5. Kim, G., Jeong, W.M., Lee, K.S., Jun, K. and Lee, M.E. (2011). Offshore and nearshore wave energy assessment around the Korean Peninsula, Energy, 36, 1460-146. https://doi.org/10.1016/j.energy.2011.01.023
  6. Kweon, H-M., Cho, H. and Jeong, W-M. (2013). Wave analysis and spectrum estimation for the optimal design of the wave energy converter in the Hupo coastal sea, J. of Korean Society of Coastal and Ocean Engineers, 25(3), 147-153. https://doi.org/10.9765/KSCOE.2013.25.3.147
  7. Kyoung, J-H, Hong, S-Y. and Hong, D-C. (2006). Numerical analysis on wave energy absorption of OWC-type wave power generation, J. of Korean Society of Ocean Engineers, 20(4), 64-69.
  8. Nam, B.W., Hong, S.Y., Kim, K-B., Park, J. and Shin S-H. (2011) Numerical analysis of wave-induced motion of floating pendulor wave energy convertor, J. of Korean Society of Ocean Engineers, 25(4), 28-35.
  9. Park, J.Y., Shin, S.H. and Hong, K.Y. (2011). Experimental study for overtopping performance and control system of overtopping wave energy convertor, J. of the Korean Society for Marine Environmental Engineers, 14(1), 11-18. https://doi.org/10.7846/JKOSMEE.2011.14.1.011
  10. Ryu, H-J., Shin, S-H., Hong, K-Y., Hong, S-W. and Kim, D-Y. (2007). A simulation of directional irregular waves at Chagui-Do Sea area in Jeju using the Boussinesq wave model, J. of Korean Society of Ocean Engineers, 21(1), 7-17.
  11. Shin, S-H. and Hong, K. (2005). Experimental study on wave overtopping rate of wave overtopping control structure for wave energy conversion, J. of Korean Society of Ocean Engineers, 19(6), 8-15.
  12. Song, M., Kim, D., Kim M., Hong K. and Jun, K. (2004). Analysis of wave energy density for Korean coastal sea area based on long-term simulated wave data, J. of the Korean Society for Marine Environmental Engineers, 7, 152-157.
  13. Sorensen, R.M. (1997). Basic Coastal Engineering, Second Edition, Sec. 2.5, Chapman & Hall.