Low gwp fluids for high temperature heat pump applications

Patent metadata

Field	Value
Publication number	US-2016326418-A1
Application number	US-201615212955-A
Country	US
Kind code	A1
Filing date	Jul 18, 2016
Priority date	Mar 14, 2013
Publication date	Nov 10, 2016
Grant date	—

Abstract

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.

First claim

What is claimed is:

1 . A high temperature heat pump system comprising a compressor, an evaporator, and a condenser operating at a condenser temperature of greater than 100° C., wherein a heat transfer composition flows through the system, the heat transfer composition comprising a refrigerant having a global warming potential (GWP) of not greater than about 150 and comprising:
a. from about 60% to about 95% by weight of a first component selected from the group consisting of HFO-1233zd, HFC-245fa, and combinations of these, wherein said HFO-1233zd consists essentially of HFO-1233zd(E); and
b. from about 5% to about 40% by weight of a second component comprising at least HFC-134a, provided the refrigerant has: (1) a capacity of at least about 90% relative to CFC-114 in said a high temperature heat pump system; (2) a COP of at least about 95% relative to CFC-114 in said a high temperature heat pump system; and (3) a glide of less than about 3° C. in said a high temperature heat

2 . The heat transfer composition of claim 1 , wherein said component (a) comprises HFO-1233zd.

3 . The heat transfer composition of claim 2 , wherein said HFO-1233zd consists essentially of HFO-1233zd(E).

4 . The heat transfer composition of claim 2 , comprising from about 60 wt. % to about 85 wt. % of HFO-1233zd and from about 15 wt. % to about 40 wt. % of HFC-134a.

5 . The heat transfer composition of claim 2 , comprising from about 65 wt. % to about 85 wt. % of HFO-1233zd and from about 15 wt. % to about 35 wt. % of HFC-134a.

6 . The heat transfer composition of claim 2 , comprising from about 70 wt. % to about 85 wt. % of HFO-1233zd and from about 15 wt. % to about 30 wt. % of HFC-134a.

7 . The heat transfer composition of claim 2 , comprising from greater than 0 wt. % to about 15 wt. % of HFC-134a.

8 . The heat transfer composition of claim 2 , comprising from about 85 wt. % to about 95 wt. % of HFO-1233zd and from about 5 wt. % to about 15 wt. % of HFC-134a.

9 . The heat transfer composition of claim 1 , wherein said component (a) comprises HFC-245fa.

10 . The heat transfer composition of claim 9 , comprising from about 60 wt. % to about 87 wt. % of HFC-245fa and from about 13 wt. % to about 40 wt. % of HFC-134a.

11 . The heat transfer composition of claim 9 , comprising from about 60 wt. % to about 85 wt. % of HFC-245fa and from about 15 wt. % to about 40 wt. % of HFC-134a.

12 . The heat transfer composition of claim 9 , comprising from about 70 wt. % to about 85 wt. % of HFC-245fa and from about 15 wt. % to about 30 wt. % of HFC-134a.

13 . The heat transfer composition of claim 9 , comprising from about 85 wt. % to about 95 wt. % of HFC-245fa and from about 5 wt. % to about 15 wt. % of HFC-134a.

14 . A method of transferring heat to or from a fluid or body in a high temperature heat pump system comprising
providing a high temperature heat pump composition comprising from about 60% to less than about 100% by weight of a first composition selected from the group consisting of HFO-1233zd, HFC-245fa, and combinations of these; and from greater than about 0% to about 40% by weight of a second composition comprising at least HFC-134a, provided that the heat transfer 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; providing the high temperature heat pump composition within the system and flowing the high temperature heat pump composition through said system; causing a phase change in said high temperature heat pump composition, and exchanging heat with said fluid or body during said phase change.

15 . The method of claim 14 wherein said component (a) comprises HFO-1233zd.

16 . The method of claim 15 wherein said HFO-1233zd consists essentially of HFO-1233zd(E).

17 . The method of claim 16 wherein said high temperature heat transfer composition comprises from about 60 wt. % to about 85 wt. % of HFO-1233zd and from about 15 wt. % to about 40 wt. % of HFC-134a.

18 . The method of claim 16 wherein said high temperature heat transfer composition comprises from about 65 wt. % to about 85 wt. % of HFO-1233zd and from about 15 wt. % to about 35 wt. % of HFC-134a.

19 . The method of claim 16 wherein said high temperature heat transfer composition comprises from about 70 wt. % to about 85 wt. % of HFO-1233zd and from about 15 wt. % to about 30 wt. % of HFC-134a.

20 . The method of claim 14 wherein said high temperature heat transfer composition comprises from greater than 0 wt. % to about 15 wt. % of HFC-134a.

Assignees

• Honeywell Int Inc

Inventors

• Yana Motta Samuel F
• Spatz Mark W
• Sethi Ankit

Classifications

• C09K2205/40

  Replacement mixtures · CPC title

• C09K5/044 Primary

  comprising halogenated compounds · CPC title

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title

• F25B30/06

  characterised by the source of low potential heat · CPC title

• F25B45/00

  Arrangements for charging or discharging refrigerant · CPC title