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http://dx.doi.org/10.5916/jkosme.2007.31.4.363

Development and Analysis of the Highly Efficient Support System in a Liquid Hydrogen Vessel  

Yun, Sang-Kook (한국해양대학교 기계정보공학부)
Park, Dong-Heun (한국해양대학교 대학원)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.31, no.4, 2007 , pp. 363-369 More about this Journal
Abstract
Probably the most significant heat transfer in the cryogenic liquid hydrogen storage tank from the atmosphere may occur through its support system. In this paper the efficient support system for the cryogenic storage vessel was newly developed and analysed. The support system was composed of a spherical ball as a supporter to reduce the contact area. which is located between two supporting SUS tubes inserted SUS and PTFE blocks. Numerical analyses for temperature distribution, and the thermal stress and strain of the support system were performed by the commercial codes FLUENT and ANSYS. The heat transfer rate of the supporter was evaluated by the thermal boundary potential method which can consider the variation of thermal conductivity with temperature. The results showed that the heat transfer rate through the developed supporter compared with the common SUS tube supporter was significantly reduced. The thermal stress and strain were obtained well below the limited values. It was found that the developed supporter can be one of the most efficient support systems for cryogenic liquid storage vessel.
Keywords
Cryogenic liquid storage vessel; Support system; Heat transfer rate; Spherical ball;
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