SYSTEMS FOR EFFICIENT HEATING AND/OR COOLING AND HAVING LOW CLIMATE CHANGE IMPACT

摘要

The present invention relates, in part, to heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about or greater than about 0% to about 15% by weight of HCFO-1233zd; (b) from about 65% to less than about 100% by weight of HFO-1234ze, or HFO-1234yf, or combinations thereof; and (c) from greater than about 0% to about 20% by weight of HFC- 125, with the weight percent being based on the total of the components (a) - (c) in the composition.