Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Experimental Study on the Removal of Biofouling from Specimens of Small Ship Constructions Using Water Jet

물 제트를 이용한 소형선박제작 시편의 선체부착생물 제거에 관한 실험적 연구

  • Seo, Daewon (Department of Naval Architecture and Ocean Engineering. Kunsan National Maritime University) ;
  • Oh, Jungkeun (Department of Naval Architecture and Ocean Engineering. Kunsan National Maritime University)
  • 서대원 (군산대학교 조선해양공학과) ;
  • 오정근 (군산대학교 조선해양공학과)
  • Received : 2022.09.05
  • Accepted : 2022.10.28
  • Published : 2022.10.31
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Abstract

Fouling organisms attached to a ship not only greatly increase the resistance of the ship as they grow on the hull but also cause disturbances in local marine ecosystems as they move with the ship. Accordingly, the International Maritime Organization has started discussing the removal of biofouling and evaluation of cleaning performance to prevent the migration of hull-fouling species. In this study, specimens of FRP(Fiber Reinforced Plastic), HDPE(High Density Polyethylene), and CFRP(Carbon Fiber Reinforced Plastic) materials used for small ship construction were cured in Gyeokpo Port (Jeonlakbuk-do) for about 80 days. Then, attached organism removal experiments were performed using a water jet nozzle. The results show that seaweeds, such as laver, were removed when the distance between the nozzle and the specimen was 1.8 cm and the pressure was 100 bar. Furthermore, it was confirmed that the cleaning of barnacles was possible only when the pressure was 200 bar or more.

선박에 부착된 수중생물은 선체에서 성장하면서 선박의 저항을 크게 증가시킬 뿐만 아니라 부착생물이 배와 함께 이동하면서 지역의 해양 생태계 교란을 야기시키기도 한다. 이에 따라 국제해사기구에서는 선체부착생물의 이동을 막기 위해 선체부착생물 제거 및 청소성능 평가 논의를 시작해 오고 있다. 본 연구에서는 소형선박에 사용되는 FRP(Fiber Reinforced Plastic), HDPE((High Density Polyethylene), CFRP(Carbon Fiber Reinforced Plastic) 재료의 시편을 격포항(전락북도)에 약 80일간 양생시킨 후 물 제트 노즐을 이용하여 부착생물 제거실험을 수행하였다. 그 결과 김과 같은 해조류는 노즐과 시편과의 거리가 1.8cm, 100bar 일 때 제거되었지만, 따개비의 경우 200 bar 이상은 되어야 청소가 되는 것을 확인하였다.

Keywords

Acknowledgement

본 연구는 군산대학교의 지원을 받아 수행되었음을 밝힙니다.

References

  1. Bertram, V.(2021), Robotic Hull Cleaning - Past, Present and Prospects, 20th Conference on Computer and IT Applications in the Maritime Industries, 8-9 August, 2021, Mulheim, Germany, pp. 16-23.
  2. Grzegorczyk, M., S. J. Pogorzelski, A. Pospiech, and K. Boniewicz-Szmyt(2018), Monitoring of Marine Biofilm Formation Dynamics at Submerged Solid Surfaces with Multitechnique Sensors, Frontiers in Marine Science, 5, 363, pp. 1-16. https://doi.org/10.3389/fmars.2018.00001
  3. Hayek, M., M. Salgues, J. C. Souche, E. Cunge, C. Ciraudel, and O. Paireau(2021), Influence of the Intrinsic Characteristics of Cementitious Materials on Biofouling in the Marine Environment, Sustainability, 13, 2625, pp. 1-24.
  4. Jung, K. -S.(2015), Influences of the Surface Pollution Cause by the Marine Growth on Ship Hulls on Engine Performance and Output, Journal of the Korean Society of Marine Engineering, Vol. 39, No. 4, pp. 399-404.
  5. Oliverira, D., A. I. Larsson, and L. Granhag(2018), Effect of ship hull form on the resistance penalty from biofouling, The Journal of Bioadhesion and Biofilm Research, Vol. 34, No. 3, pp. 262-272. https://doi.org/10.1080/08927014.2018.1434157
  6. Song, C. and W. Cui(2020), Review of Underwater Ship Hull Cleaning Technologies, Journal of Marine Science and Application, Vol. 19, pp. 415-429. https://doi.org/10.1007/s11804-020-00157-z