Definition of adjacency for LNG storage tanks
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Dear experts, I would like to ask for your guidance on the definition of adjacent storage tanks as stated in clause 9.5.1 of 50028. If there are 4 vertical storage tanks arranged in a square shape, do the tanks located on the diagonal count as adjacent tanks? Please help me understand this
If the safety distance for tanks that are not diagonal to each other is sufficient, then it’s definitely sufficient for tanks that are diagonal to each other as well
Regardless of how the storage tanks are arranged, tanks in adjacent directions can be considered neighboring tanks. If it is about calculating the safety distance, what was said above can already answer the question. If calculating the amount of fire-fighting cooling water required, the cooling water volume must be calculated for all tanks located within the specified distance (1.5D); if there are more than 3 tanks, only the volume for 3 tanks needs to be calculated.