Speaker
Description
The efficient and long-term storage of cryogenic liquids, such as liquid oxygen and liquefied natural gas, relies heavily on the use of various insulation materials. However, the apparent thermal conductivity data for many insulation materials, including foam glass slabs, high-density polyisocyanurate, and aerogel, under cryogenic and atmospheric pressure conditions remain insufficiently documented. In this study, a testing apparatus was designed and constructed to measure the apparent thermal conductivity of insulation materials under these conditions. Apparent thermal conductivity tests were conducted on foam glass slabs, high-density polyisocyanurate, aerogel blankets, and nitrile rubber curved panels at liquid nitrogen temperatures and above. The results indicate that aerogel blankets exhibit superior insulation performance, with an apparent thermal conductivity of 0.0063 W/(m·K) at 110 K. These findings provide valuable references for the selection and application of insulation materials in cryogenic storage tanks.
