• Title/Summary/Keyword: Low energy used fishing gear

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Development of a low-energy used large midwater trawl using a numerical method (수치해석기법을 이용한 에너지 저소비형 대형 중층 트롤어구 개발)

  • Lee, Kyounghoon;Lee, Chun-Woo;Yang, Yong-Su;Lee, Jihoon
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.48 no.3
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    • pp.195-207
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    • 2012
  • Fuel consumption in fisheries is a primary concern due to environmental effects and costs to fishermen. Much research has been carried out to reduce the fuel consumption related to fishing operations. The fuel consumption of fishing gear during fishing operation is generally related to hydrodynamic resistance on the gear. This research demonstrates a new approach using numerical methods to reduce fuel consumption. The results from the simulation were verified with results that mirrored the model experiments. By designing the fishing gear using drawing software, the whole and partial resistance force on the gear can be calculated as a result of simulations. The simulation results will suggest suitable materials or gear structure for reducing the hydrodynamic forces on the gear while maintaining the performance of the gear. Furthermore, the efficiency of low energy used trawl as economic point of view will be dealt. This research will helpful to reduce the GHG emissions from fishing operations and lead to reduce fishing costs due to fuel savings.

Development of a low energy used anchovy dragnet using a numerical method (수치해석기법을 이용한 에너지 저소비형 기선권현망어구 개발)

  • Yang, Yong-Su;Lee, Chun-Woo;Lee, Kyounghoon;Park, Subong;Park, Seong-Kwae;Kang, Min-Joo;Lee, Jihoon
    • Journal of the Korean Society of Fisheries and Ocean Technology
    • /
    • v.49 no.3
    • /
    • pp.175-187
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    • 2013
  • Fuel consumption in fisheries is a primary concern due to environmental effects and costs to fishermen. Much research has been carried out to reduce the fuel consumption related to fishing operations. The fuel consumption of fishing gear during fishing operation is generally related to hydrodynamic resistance on the gear. This research demonstrates a new approach using numerical methods to reduce fuel consumption. The results from the simulation were verified with results that mirrored the model experiments. By designing the fishing gear using drawing software, the whole and partial resistance force on the gear can be calculated as a result of simulations. The simulation results will suggest suitable materials or gear structure for reducing the hydrodynamic forces on the gear while maintaining the performance of the gear. Furthermore, the efficiency of low energy used anchovy dragnet as economic point of view will be dealt. This research will helpful to reduce the GHG emissions from fishing operations and lead to reduce fishing costs due to fuel savings.