• Title/Summary/Keyword: 연안복합어선

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항주시 소형어선의 수중소음 스펙트럼 분석에 관한 연구

  • 최한규;신형일;황두진;노영수
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.41-42
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    • 2000
  • 국제해양법이 제정된 이래 국내외의 정세변화에 따른 수산업의 침체에 대처해 나가기 위해서는 연안어장의 해양환경을 쾌적하게 조성하고 여기에서 조업하는 조업어선들의 구조와 운용설비 개선에 대한 대책이 마련되어야 한다. 특히 어선어업에 있어서는 어선에서 발생하는 소음은 선박에 종사하는 어업인과 어군에 직접적인 영향을 미치게 되므로 이들 영향을 최소화하기 위한 연구가 성실히 수행되어야 할 것이다. 본 연구는 소형어선의 항주 중의 수중소음의 어류에 미치는 영향을 파악하기 위한 기초자료를 얻고자 2000년 3월 2일∼4월 10일 여수연안에서 동일한 크기의 신조 소형 연안복합어선(GT 6.66)의 항주중인 선박의 수중소음을 측정, 분석한 결과이다. (중략)

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A Study on the Selection of Subject Vessel for Development of Oil Recovery Equipment for Small Vessel (소형선박용 기름회수장비 개발을 위한 대상선박 선정에 관한 연구)

  • Lim, Chae-Hyun;Han, Won-Heui
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.18 no.6
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    • pp.604-609
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    • 2012
  • Our country has experienced some difficulties with clean up operation of massive marine oil pollution due to the lack of oil spill response equipments. And there was the case that a fishing vessel performed clean up operation had not received any proper payments because of its inefficient oil spill response operation. Thus, it is important to develop an efficient oil recovery equipment for small vessel and adopt it as a part of oil pollution prevention policy. These efforts could prepare oil spill response equipment in advance and use a fishing vessel registered in the affected area by massive marine oil pollution. Therefore, this study examines and adopts a suitable subject vessels as a first step for developing oil recovery system fitting with small vessels for national use.

A Study on the Development of Sweeping Arm System for Oil Recovery by Small Vessel (소형 선박을 이용한 기름방제용 스위핑 암 시스템 개발에 관한 연구)

  • Han, Won-Heui
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.19 no.2
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    • pp.219-224
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    • 2013
  • In the case of occurring marine oil pollution, it is the most effective way that to prepare all the necessary response resources in advance and to respond to incidents, but there are limits in reality. Therefore, may be an important alternative ways to use a fishing vessel registered in the affected area by massive marine oil pollution efficiently. In the United States and other developed countries, it is can be found that temporary response program by local fishing vessels(VOO program) has been developed and operated. This study was examined for sweeping arm system suitable for domestic small fishing vessels. The selected small vessel was as the model of Coastal gill-net and compound fishing vessel with classes of 2.5~3.5tons, length 8~9m, breath 2.5~2.8m, horsepower 200~250 HP and FRP materials. The developed equipment was designed that can be easily mounted on the model ship and portable structure. For increasing the field practicality, the weight of each part was composed less than 10kg for easy assembly and disassembly.

A Study of the Development Safety Criteria for Hybrid Electrical Propulsion Fishing Boats (전기복합 추진어선의 안전기준 개발에 관한 연구)

  • Cheol eon Kang;Chul ho Baek;Sung hun Kim;Chan jae Lee
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.29 no.2
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    • pp.207-214
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    • 2023
  • Ships emit significant amounts of air pollution. To reduce ship emissions, the government has implemented the Eco-Friendly Ship Act to improve the marine air environment, under which the use of eco-friendly ships that use eco-friendly energy as a power source encouraged and technologies to reduce marine pollution are developed. Therefore, the revision of relevant laws and systems such as inspection and facility standards for the safe operation of eco-friendly ships is urgently needed, especially those for fishing vessels, which account for the majority of domestic coastal vessels. This study defines the core equipment for the application of electric complex propulsion systems to fishing boats and presents a minimum safety standard plan for the adoption and dissemination of eco-friendly fishing boats.

A Study on the Application of Hybrid Propulsion System for Fishing Vessels (어선용 복합 추진시스템 적용을 위한 연구)

  • Jung-Ho Noh
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.28 no.7
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    • pp.1238-1243
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    • 2022
  • The International Maritime Organization is at the forefront of strengthening gas emission regulations for ships globally. The Korean government needs to apply measures to reduce emissions, such as setting a basic roadmap for greenhouse gas reduction. In addition, there is an urgent need to introduce a new efficient propulsion system that can reduce gas emissions. This includes applications to fishing vessels, which account for 90.6% of the greenhouse gas emissions from ships sailing along domestic coasts. In this study, an electric-combined propulsion system applicable to domestic coastal fishing vessels was developed. The target ship to which the electric-combined propulsion system could be applied was selected. A simulation system was constructed using MATLAB/Simulink to compare the expected fuel consumption when applying the developed complex electric propulsion system to the propulsion system mounted on the selected target fishing vessel. Through simulations, the differences in fuel consumption between the mechanical propulsion system and the electric hybrid propulsion system (both when charging and not charging the battery on land) were confirmed. The results show that fuel consumption can be decreased by approximately 13% and 16% when applying the electric-combined propulsion system.

Jeju and Seogwipo Costal Control Workload based on VTS Big Data (VTS 빅데이터를 활용한 제주·서귀포 연안 관제 업무량 산정)

  • Ji-Hee Kim;Kwang-Il Kim
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2022.06a
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    • pp.267-268
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    • 2022
  • Jeju coastal waters are limited to high-risk areas due to the passage of international cruise ships, passenger ships, with a large number of people and fishing boats, or to the jeju port and the jeju civilian-military combined port and near by seas, so a VTS system will be established along jeju and seogwipo coast. There is no accurate standard for determining the number of people required by the maritime traffic control center. Therefore, this study calculated the required operating personnel for control seats on the coast of jeju and seogwipo by using VTS big data to efficiently calculate the workload of maritime traffic control. It is judged that this study can be used basic data for research that sets the standard for calculating the control workload.

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Analysis of efficiency of fishing operation by the change in the size of coastal composite fishing boat (연안복합어선의 크기 변화에 따른 어로작업 효율 분석)

  • KIM, Min-Son;HWANG, Bo-Kyu;CHANG, Ho-Young
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.56 no.2
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    • pp.126-137
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    • 2020
  • This study collected and analyzed the fishing process of existing fishing boat and newly built fishing boat by using the video observation methods to understand the improvement of fishing operation efficiency and safety according to the scale change of coastal composite fishing boat. The fishing operation efficiency was calculated by analyzing the frequency of movement, the movement distance and the moving time per basket used in the fishing process to derive the improvement of the newly built fishing boat compared to the existing fishing boat. It was confirmed that the mean frequency of movements decreased to 13.9%, the average moving time decreased to 21.8%, the mean movement distance increased to 20.5% and the movement through the top of gunwale did not occur. Movement of frequency, increased and time according to the fishing operation were directly affected by the width of side passages and the presence or absence of walking obstruction such as bulwark stay, hatch coaming and fishing gears on deck. The results of this study are expected to be used as basic data for redesigning into a safe and efficient coastal composite fishing boat in the future.

Allocation of the skipper's attention depending on the longline fishing process of the coastal composite fishing vessel (연안복합어선의 연승조업과정에 따른 선장의 주의 배분)

  • KIM, Min-Son;HWANG, Bo-Kyu
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.58 no.2
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    • pp.175-184
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    • 2022
  • This study analyzed the allocation of the skipper's attention during fishing operation in the wheelhouse of a Korean coastal composite fishing vessel by using video observation. To summarize the results, the ratio of lookout, radar and GPS monitoring, which is essential for prevention of collision at sea, was significantly lower than that of other fishing operation due to the attention concentration on the work place during hauling line. In order to reduce exposure to risk of collisions due to concentration of attention to certain tasks such as line hauling, it is necessary to develop an alert system that can notify the approach of other ships or obstruction throughout the ship using information from radar or the automatic identification system. In addition, the order of attention allocation to devices and facilities obtained in this study is expected to be used as basic data for device or facility layout based on the principle of usage frequency in designing wheelhouse for coastal composite fishing vessels in the future.

Risk assessment for fisher's safety in coastal composite fishing vessels (연안복합 어선원의 안전 위험도 평가)

  • LEE, Yoo-Won
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.55 no.2
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    • pp.145-151
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    • 2019
  • The coastal composite fishery has the highest rate of around 30.0% in registered fishing vessels of Korea for the last three years. The risk analysis for the fisher's safety of coastal composite fishing vessels was conducted to serve as a basic data for improving the healthy and safe working environment of fisher using fisher's occupational accidents of the national federation of fisheries cooperatives (NFFC) from 2016 to 2018 (n = 1,105). As a result, the occupational accident occurrence rate of coastal composite fishery was 3.76% in all industries, 7.8 times the rate of that. In addition, death and missing rate was found to have a serious level management to 10.10‱. Among the accidents, 76.0% occurred at sea. The slipping, others and contact with machinery or fishing gear occurred more frequently in order in the frequency of accident occurrence pattern. In the risk assessment using frequency and severity, slipping, contact with machinery and others showed high risk during fishing. The results are expected to contribute to identification and assessment of safety hazard occurred in coastal composite fishing vessels.

Operating status of Korean coastal composite fishing boats by the questionnaire survey (설문조사를 통한 우리나라 연안복합어선의 조업 실태)

  • HWANG, Bo-Kyu;CHANG, Ho-Young;KIM, Min-Son
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.54 no.4
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    • pp.324-332
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    • 2018
  • We conducted a questionnaire survey to analyze the current status of the coastal composite fisheries, as well as the improvement point in designing a new type coastal composite fishing boat suitable for Korean fishing environments from April to August 2017. The questionnaire composed of 20 questions about the features of the coastal composite fishing boat and fishing work. The survey sites were selected to cover all parts of the country by considering the geographical position. The significance testing for the response results was accessed by ${\chi}^2$ test and ANOVA. The results revealed that more than half (59.1%) of the fishermen operated one day per voyage and operating alone topped with 22.5% in the number of crews, followed by 2 persons (20.3%) and 5 persons (22.1%). The navigation devices had a high rate of installation and GPS plotter ranked first in the devices. In addition, fish finder ranked first in fishing equipment, followed by net hauler. The most inconvenient work that they felt during the fishing operation was fish handing at 49.8% and other general fishing works like setting and hauling line, deck cleaning accounted for about 25%. The hardest work was the accident by ropes wrapped around propeller and the engine trouble came in second. The most inconvenient facilities to the present design of fishing boat was wheelhouse (76.7%), followed by fish hold (38.5%), and deck (35.1%). Furthermore, inconvenient points related to the movement of fishing gear, noise and vibration of engine, slippery deck and small fish hold exceeded 50%.