Method for transferring heat

摘要

A process for transferring heat comprising the following steps:
(1) transferring heat from a body to a first heat transfer system by means of a secondary loop passageway comprising a heat transfer fluid and, optionally,(2) transferring heat from a second heat transfer system to said body by means of said secondary loop passageway comprising said heat transfer fluid,

wherein: said second heat transfer system being the same as or different from said first heat transfer system, said secondary loop passageway comprises at least one polymer sealant selected from a rubber seal and a plastic pipe; and said heat transfer fluid comprises one or more linear perfluoropolyethers having formula RF—(OCF2)n(OCF2CF2)m(OCF2(CF2)zCF2)p—ORF (I), wherein RF, equal or different at each occurrence, is a C1-C3 perfluoroalkyl group, m, n and p, equal to or different from each other, are integers comprised between 0 and 100, the sum m+n being higher than 0, and z is equal to 1 or 2, and wherein said heat transfer fluid is circulated through said secondary loop passageway in step (1) for transferring said heat from said body to said first heat transfer system and, optionally, in step (2) for transferring said heat from said second heat transfer system to said body.

主权项

1. A method for transferring heat, said method comprising:
(1) transferring heat from a body to a first heat transfer system by means of a secondary loop passageway comprising a heat transfer fluid and, optionally, (2) transferring heat from a second heat transfer system to said body by means of said secondary loop passageway comprising said heat transfer fluid, wherein:
said second heat transfer system is the same as or different from said first heat transfer system;said secondary loop passageway comprises at least one polymer sealant selected from the group consisting of a rubber seal and a plastic pipe; andsaid heat transfer fluid comprises one or more linear perfluoropolyethers having formula (I-bis):
R′F—(OCF2)n′(OCF2CF2)m′—OR′F  (I-bis)wherein RF, equal or different at each occurrence, is a C1-C3 perfluoroalkyl group, and m′ and n′ are integers greater than 0 and up to 50, m′/n′ being between 0.1 and 10, and wherein said heat transfer fluid is circulated through said secondary loop passageway in step (1) for transferring said heat from said body to said first heat transfer system and, optionally, in step (2) for transferring said heat from said second heat transfer system to said body.