LOW GWP FLUIDS FOR HIGH TEMPERATURE HEAT PUMP APPLICATIONS

摘要

The present invention relates, in part, to heat transfer compositions, and associated systems and methods, which include a first composition selected from the group consisting of HFO-1233zd, HFC-245fa, and combinations of these: and optionally, a second composition selected from the group consisting of HFO-1234ze, HFC-134a, and combinations of these.

主权项

1. A heat transfer composition comprising;
from about 60% to about 95% by weight of a first composition selected from the group consisting of HFO-1233zd, FIFC-245fa, and combinations of these; and from about 5% to about 40% by weight of a second composition selected from the group consisting of HFO-1234ze, HFC-134a, and combinations of these; provided the composition has one or more of the following: (1) a capacity between about 90% and about 110% relative to CFC-114 in a high temperature heat pump system; (2) a COP of at least about 95% relative to CFC-114 in a high temperature heat pump system; or (3) a glide of less than about 3° C. in a high temperature heat pump system.