Explain what is 'rollover' in an LNG tank and how is it prevented?

Rollover in an LNG tank is a potentially dangerous phenomenon where a rapid and spontaneous mixing of LNG layers with different densities and compositions occurs, resulting in a sudden release of a large volume of vapor. This can overwhelm the tank's pressure relief system and potentially lead to tank damage or failure. Rollover typically occurs when LNG with a higher density is added to a tank containing LNG with a lower density. The denser LNG settles to the bottom of the tank, forming a distinct layer. If there is insufficient mixing, the two layer....