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결빙 방지를 위한 저전력 갑판이동로 개발

Development of a Low-power Walk-way for Anti-Icing

  • 배상은 (부경대학교, 기술경영협동과정) ;
  • 조수길 (선박해양플랜트연구소, 해양플랜트산업지원센터) ;
  • 이운식 (부경대학교, 시스템경영공학부)
  • Bae, Sang-Eun (Interdisciplinary Program of Management Technology, Graduate School, Pukyong National University) ;
  • Cho, Su-gil (Offshore Industries R&BD Center, Korea Research Institute of Ship & Ocean Engineering) ;
  • Lee, Woon-Seek (Division of Systems Management and Engineering, Pukyong National University)
  • 투고 : 2019.03.29
  • 심사 : 2019.05.29
  • 발행 : 2019.06.30

초록

The walk-way means a passage installed on the deck of a ship so that a person can safely move under any circumstances. So, the walk-way has to maintain a temperature of $5^{\circ}C$ or more for anti/de-icing even at an ambient temperature of $-62^{\circ}C$, a temperature in polar region. At present, the walk-way with heating cable is used, but the anti/de-icing effect is insufficient due to low heat transfer efficiency. Also, it has a construction problem due to heavy weight. In this study, an walk-way with a CNT surface heating element is proposed for the high anti/de-icing effect and the heating value per unit volume. The international standard survey, conceptual design, and simulation for the structural safety and the heat transfer are performed for the development of the proposed walk-way. To enhance the performance, the case studies based on the simulation analysis are conducted. Finally, the final prototype, applying the optimum material and thickness (3.2t of SS400) based on the case study results, is fabricated and experimented.

키워드

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Fig. 1 Deck walk-way with heating cable

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Fig. 2 Deck walk-way map

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Fig. 3 Design drawing of the initial deck walkway

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Fig. 4 Prototypes production

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Fig. 5 Analytical model of ABAQUS

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Fig. 6 Prototypes production condition of heat transfer analysis

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Fig. 7 Calculation of air temperature inside top

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Fig. 9 Result for analysis of heat transfer (case 2)

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Fig. 10 Result for analysis of structure (case 12)

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Fig. 11 Design improvement plan

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Fig. 12 Fainal Prototyping

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Fig. 13 Scene of installation

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Fig.14 Test procedure on temperature

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Fig. 8 Condition of structural analysis

Table 1. Criteria by grade of Winterization

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Table 2. Comparison of Characteristics of Heating Cable and Surface Heating Elements

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Table 3. Thermal properties

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Table 4. Mechanical properties

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Table 5. Result of case study

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Table 6. Inproved fainal prototypes

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Table 7. Condition of repeated load test in cryogenic environment

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참고문헌

  1. J. G. Lee, A Study on Characteristics of Surface Heating Element for Preventing Freezing in Polar Marine Using CNT-based Advanced Materials. J. Korean Soc. Mech. Technol. Vol. 19 No. 2, p, 274-280, (2017). https://doi.org/10.17958/ksmt.19.2.201704.274
  2. J. H. Jung, Technical Trends of Polar Ship Equipment Materials Using CNT Nanotechnology. Ministry of Science, ICT and Future Planning. (2016).
  3. S. Park, J. Cho, B. Joo, S. Kim. Reliability Evaluation for Application of Transparent Surface Heating Element. The 46th Winter Annual Conference ot the Korean Vacuum Society. p, 473-473, (2014).
  4. K. Yang, K. Cho, K. Im, S. Kim, Temperature Maintenance of an ITO Nanoparticle Film Heater, Journal of IKEEE. Vol. 20, No. 2, p, 171-173, (2016). https://doi.org/10.7471/ikeee.2016.20.2.171
  5. J. Cho, H. Hwang, Image Processing Technology for Analyzing the Heating State of Carbon Fiber Surface Heating Element. Journal of the Korea Academia-Industrial cooperation Society Vol. 19, No. 2 p, 683-688, (2018). https://doi.org/10.5762/KAIS.2018.19.2.683