Heat transfer compositions comprising 2,3,3,3-tetrafluoropropene and ammonia

摘要

The invention relates to a composition comprising:
a heat-transfer fluid comprising from 15% to 30% ammonia and from 70% to 85% 2,3,3,3-tetrafluoropropene; anda lubricant oil comprising a polyalkylene glycol.;The invention also relates to the use of ammonia for increasing the miscibility of 2,3,3,3-tetrafluoropropene with the polyalkylene glycol, and vice versa.

主权项

1. Composition comprising:
a heat-transfer fluid consisting essentially of a quasi-azeotropic or azeotropic composition of from 15% to 30% ammonia and from 70% to 85% 2,3,3,3-tetrafluoropropene; and a lubricant oil comprising a polyalkylene glycol, in which the lubricant oil represents from 1% to 99% of the composition.