Boiling of LNG on Typical Dike Floor Materials

摘要

Boiling rates of LNG and liquid methane were measured for various substrates which are or could be used as dike floor materials. These rates were correlated with theoretical heat transfer models to allow interpolation and extrapolation. Two very effective insulations were identified: A proprietary insulating concrete and corrugated metal plates. The former has very low density, is quite strong, and has a low thermal conductivity. The latter is inexpensive, easily placed into position and leads to quite low boiling rates. Also shown was the fact that LNG vaporizing on a solid surface is in vapor-liquid equilibrium and, therefore, standard thermodynamic correlations may be used to estimate the composition of the evolved cloud.