Refrigeration and heat valorizing : cryogenics

This study focuses in particular on the production and use of very low temperatures, typically below 100°C; the range considered is classically known as the cryogenics.

To obtain them, it is necessary either to use techniques different from those imposed in the two previous articles Cold production and heat recovery: general principles [BE 8 095] and Refrigeration and heat recovery: special machines [BE 8 096] or call on new physical principles. Both approaches are examined in this article.

It's worth noting that high-temperature heat reclamation, the counterpart of cryogenics, remains a little-explored field that would undoubtedly merit more consideration; this subject is only touched on here, to preserve formal symmetry, and will be the subject of another article to come.