Development of an insulation performance measurement unit for full-scale LNG cargo containment system using heat flow meter method

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Development of an insulation performance measurement unit for full-scale LNG cargo containment system using heat flow meter method

Freier Zugriff

Jin-sung Lee / Kyung-su Kim / Yooil Kim

Efforts have been made in this paper to develop the measuring device for the insulation performance of full scale NO96 LNG CCS. The facility was designed to maintain environmental conditions which are similar to operation conditions of full scale LNG CCS. In the facility, the heat sink boundary was kept cryogenic temperature by cold chamber which contains liquefied nitrogen and heat source boundary was made by external case heated by natural convection. Heat Flow Meter method (HFM) was applied to this facility, hence Heat Flux Sensors (HFS) were attached to specimen. The equivalent thermal conductivity of full scale NO96 unit box was targeted to measure and PUF of same size was used for the calibration test. Additionally, the finite element analysis was carried out to check the performance of the developed test facility and experimental results were also compared with those predicted by the numerical method. Keywords: LNG CCS, NO96 system, Boil off rate, Equivalent k, Heat flow method