Posted By George Wedgwood Hi Naveed - you may need to explain a bit more about your particular problem as I am a little unsure of your meaning. I take it we are discussing Liquified Natual Gas Tanks (LNG)? If so I have clipped the following from http://www.nationalgrid....TechnicalInformation.pdf HOW IS IT STORED? LNG must be maintained cold to remain a liquid, independent of pressure. LNG tanks are always of double-wall construction with extremely efficient insulation between the walls. Large tanks generally have a low aspect ratio (height to width) and are cylindrical in design with a domed roof. Storage pressures in these tanks are very low, less than 120mb. Smaller quantities tend to be stored in vacuum-jacketed, pressure vessels. These tanks may operate at pressures from a few millibars to 18 barg. HOW IS IT KEPT COLD? The insulation alone, as efficient as it is, will not prevent the ingression of heat . LNG is stored as a "boiling cryogen," that is, it is a very cold liquid at its boiling point for the pressure at which it is being stored. LNG will stay at near constant temperature if kept at constant pressure. This phenomenon is called "autorefrigeration". As long as the LNG vapour (boil off) is allowed to leave the tank, the temperature will remain constant. If the vapour is not drawn off, then the pressure and temperature inside the vessel will rise. From my experience in India, with major LNG installations at Power Stations, temperature was less of a problem than ignition of vapour and a fire extinguishant sysyem was installed, which could quench the tanks as necessary. If you are talking about smaller tanks, it is well known that water played on a hot tank will reduce the temperature and hence the release of vapour. Similarly, covering it with cloth and keeping it wet will do the same. However, if you are referring to people wearing wet clothing, that would be different - please explain. Kind regards, George