Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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An Experimental Study of the Variation of the Moisture Content of Plywood and the Change of Thermal Conductivity of Plywood According to its Moisture Content

습도 조건에 따른 합판의 함수율 변화와 함수율에 따른 합판의 열전도율 변화에 대한 실험적 연구

  • Lee, Jin-Sung (Department of Naval Architecture and Ocean Engineering, INHA University) ;
  • Kim, Kyung-Su (Department of Naval Architecture and Ocean Engineering, INHA University) ;
  • Kang, Jung-Kyoo (Daewoo Shipbuilding and Marine Engineering Co. Ltd) ;
  • Yoo, Chang-hyuck (Department of Naval Architecture and Ocean Engineering, INHA University)
  • Received : 2018.01.31
  • Accepted : 2018.10.18
  • Published : 2018.10.31
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Abstract

Plywood is one of the important materials in LNG cargo containment systems, and, due to the characteristics of the wood, its properties vary greatly depending on the humidity conditions in the storage facility. Due to the distribution environment of plywood, there is a high probability of long-term exposure to the domestic seasonal environment. Considering an environment in which the humidity changes greatly according to the seasons in Korea and the characteristics of the wood, it is necessary to acquire data on changes in the characteristics of the plywood for accurate quality control. In this study, the moisture content of plywood was determined experimentally to reflect the seasonal environmental conditions of shipyards in Korea. A noticeable change in the thermal conductivity was confirmed experimentally.

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References

  1. American Plywood Association(APA), 2016. The Engineered Wood Association, Moisture-Related Dimensional Stability. [Online] (Updated May 2016) Available at: [Accessed Dec. 2017].
  2. Gerhards, C.C., 1982. Effect of Moisture Content and Temperature on the Mechanical Properties of Wood:an Analysis of Immediate Effects. Wood and Fiber, 14(1), 4-36.
  3. Kim, J.H., Park, D.H., Choi, S.W., Lee, J.M., 2017. Cryogenic Mechanical Charateristics of Laminated Plywood for LNG Carrier Insulation System. Journal of Ocean Engineering and Technology, 31(3), 241-247. https://doi.org/10.5574/KSOE.2017.31.3.241
  4. Korea Meteorological Administration(KMA), 2017. Weather Data Release Portal. [Online] Available at: [Accessed 20 Dec. 2017].
  5. Lloyd's Register, 2017. List of Lloyd's Register Approved Material/ Components for GTT NO96 Membrane Containment system. [Online] (Updated Aprill 2017) Available at: [Accessed Dec. 2017].
  6. MacLean, J.D., Wis, M., 1941. Thermal Conductivity of Wood. Heating Piping & Air Conditioning, 13(6), 380-391.
  7. Simpson, W.T., 1982. Importance of Relative Humidity and Temperature Control in Conditioning Wood Products. Wood and Fiber, 14(2), 94-103.
  8. Steinhagen, H.P., 1977. Thermal Conductive Properties of Woods. USDA Foreste Service Forest Products Laboratory, 1-10.