Vacuum-jacketed piping

From GAWDAwiki

Vacuum-jacketed piping is a means of storing cryogenic liquids while minimizing heat loss.

A vacuum-jacketed pipe actually consists of two pipes:

1. An internal pipe which transfers cryogenic liquid
2. An external pipe which supports and contains the vacuum insulation.

The vacuum between the internal and external pipes minimizes heat transfer due to conduction, convection and radiation, making vacuum-jacketed piping a very efficient means of transferring cryogenic liquids.^[1]

References

1. http://www.vjpipe.com/pdf_files/VJP_sales_booklet1.pdf