The advantages of heat-insulating systems are decidedly determined by the reliability and an opportunity to maintain them in good operating order. The growing degree of use of the superinsulation having an extreme functional vulnerability as compared with other heat insulation types gives these criteria a high value. So the reliability and maintenance for the superinsulation are of foremost importance.

Under reliability of the superinsulation, one understands a heat-insulating system property to perform pre-set functions at a certain time interval and at that to maintain the values of established performance characteristics within preset bounds at the corresponding conditions of operation, repair, storage and transportation [97].

Acknowledgements

I express sincere gratitude to the employees of thermodynamics faculty of the Military Engineering Space University named after A. F. Mozhaiskii, and also employees of Physical Chemistry Institute named after L. V. Pisarzhevskii of Ukraine NAN, Donetsk State Technical University, Moscow State University named after M. V. Lomonosov, Kharkov Physical — technical Institute, Institute of Synthetic Polymeric materials named after N. S. Enikolopov (Moscow), University of Central Florida (Orlando, USA), University of Miami (Coral Gables, USA) for discussion of the basic results of the present work.