Operating temperature of buried tanks
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The medium is a buried tank filled with propane; what should be the operating temperature? Is 50 degrees taken according to the capacity regulations? Is soil a reliable insulator?
Under normal circumstances, the operating temperature for buried tanks is taken as room temperature, namely 50°C. For permafrost in high-altitude areas, design and material selection must take into account low temperatures, with the operating temperature determined by the actual temperature of the permafrost.
I think the 50-degree value mentioned by the poster regarding the tolerance specifications is not appropriate; the specifications do not state that the design temperature should be set at 50 degrees, only that the design pressure should be determined based on the relationship between the critical temperature and 50 degrees.