Composition
A coolant for cooling an electrical/electronic element by direct immersion cooling, comprising a partially fluorinated ether with the structure (of compound 1) wherein R 1 , R 2 , R 3 , R 4 are independently selected from the group comprising H, F, Cl, Br, I, CF 3 , alkyl, fluoroalkyl, haloalkyl, and R5 is independently selected from the group CF 3 , alkyl, fluoroalkyl, perfluoroalkyl, haloalkyl perfluorohaloalkyl.
1 . A coolant for cooling an electrical/electronic element by direct immersion cooling, comprising a partially fluorinated ether with the structure (of compound 1)
wherein R 1 , R 2 , R 3 , R 4 are independently selected from the group comprising H, F, Cl, Br, I, CF 3 , alkyl, fluoroalkyl, haloalkyl and R 5 is independently selected from the group CF 3 , alkyl, fluoroalkyl, perfluoroalkyl, haloalkyl perfluorohaloalkyl; and
wherein the coolant additionally comprises a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
2 . The coolant according to claim 1 , wherein the coolant is water free.
3 . The coolant according to claim 1 , wherein R 5 is methyl, R 1 is CF 3 and R 2 to R 4 are all H; or wherein R 5 is methyl, R 1 is CF 3 , R 2 is H, one of R 3 and R 4 is F, and one of R 3 and R 4 is H.
4 . The coolant according to claim 1 wherein the coolant comprises from 1 to 99 wt % of the partially fluorinated ether of compound 1 and from 1 to 99 wt % of a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
5 . A coolant for cooling a high voltage electrical transmission element by direct immersion cooling, comprising a partially fluorinated ether with the structure (of compound 1)
wherein R 1 , R 2 , R 3 , R 4 are independently selected from the group comprising H, F, Cl, Br, I, CF 3 , alkyl, fluoroalkyl, haloalkyl and R 5 is independently selected from the group CF 3 , alkyl, fluoroalkyl, perfluoroalkyl, haloalkyl perfluorohaloalkyl; and
wherein the coolant additionally comprises a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
6 . The coolant according to claim 5 , wherein the coolant is water free.
7 . The coolant according to claim 5 , wherein the high voltage electrical transmission element comprises a MV/HV transformer, a circuit breaker, switchgear.
8 . The coolant according to claim 5 , wherein R 5 is methyl, R 1 is CF 3 and R 2 to R 4 are all H; or wherein R 5 is methyl, R 1 is CF 3 , R 2 is H, one of R 3 and R 4 is F, and one of R 3 and R 4 is H.
9 . The coolant according to claim 5 wherein the coolant comprises from 1 to 99 wt % of the partially fluorinated ether of compound 1 and from 1 to 99 wt % of a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
10 . A coolant for cooling an electric vehicle element by direct immersion cooling, comprising a partially fluorinated ether with the structure (of compound 1)
wherein R 1 , R 2 , R 3 , R 4 are independently selected from the group comprising H, F, Cl, Br, I, CF 3 , alkyl, fluoroalkyl, haloalkyl and R 5 is independently selected from the group CF 3 , alkyl, fluoroalkyl, perfluoroalkyl, haloalkyl perfluorohaloalkyl; and
wherein the coolant additionally comprises a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
11 . The coolant according to claim 10 , wherein the coolant is water free.
12 . The coolant according to claim 10 , wherein the electric vehicle element comprises a battery, an electrical conductor (including components of any charging/discharging system(s)), a motor and/or a gearbox.
13 . The coolant according to claim 10 , wherein R 5 is methyl, R 1 is CF 3 and R 2 to R 4 are all H; or wherein R 5 is methyl, and preferably R 1 is CF 3 , R 2 is H, one of R 3 and R 4 is F, and one of R 3 and R 4 is H.
14 . The coolant according to claim 10 wherein the coolant comprises from 1 to 99 wt % of the partially fluorinated ether of compound 1 and from 1 to 99 wt % of a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
15 . A coolant for cooling a computer hardware element by direct immersion cooling, comprising a partially fluorinated ether with the structure (of compound 1)
wherein R 1 , R 2 , R 3 , R 4 are independently selected from the group comprising H, F, Cl, Br, I, CF 3 , alkyl, fluoroalkyl, haloalkyl and R 5 is independently selected from the group CF 3 , alkyl, fluoroalkyl, perfluoroalkyl, haloalkyl perfluorohaloalkyl; and
wherein the coolant additionally comprises a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
16 . The coolant according to claim 15 , wherein the coolant is water free.
17 . The coolant according to claim 15 , wherein the computer hardware element comprises a server at a data centre.
18 . The coolant according to claim 15 , wherein R 5 is methyl, R 1 is CF 3 and R 2 to R 4 are all H; or wherein R 5 is methyl, R 1 is CF 3 , R 2 is H, one of R 3 and R 4 is F, and one of R 3 and R 4 is H.
19 . The coolant according to claim 15 wherein the coolant comprises from 1 to 99 wt % of the partially fluorinated ether of compound 1 and from 1 to 99 wt % of a non-flammable fluorinated ether and/or a non-flammable fluorinated ketone.
20 . The coolant according to claim 1 , which form an azeotropic or near-azeotropic mixture.
21 . The coolant according to claim 20 , which wherein the partially fluorinated ether comprises 1,1,1,3-tetrafluoro-2-methoxypropane or 1,1,1,3,3-pentafluoro-2-methoxypropane and the additional non-flammable fluorinated ether comprises C 4 F 9 OCH 3 .
22 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 10 to 90 wt % C 4 F 9 OCH 3 and 10 to 90 wt % 1,1,1,3-tetrafluoro-2-methoxypropane.
23 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 5 to 70 wt % C 4 F 9 OCH 3 and 30 to 95 wt % 1,1,1,3,3-pentafluoro-2-methoxypropane.
24 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 20 to 80 wt % C 4 F 9 OCH 3 and 20 to 80 wt % 1,1,1,3-tetrafluoro-2-methoxypropane.
25 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 30 to 70 wt % C 4 F 9 OCH 3 and 30 to 70 wt % 1,1,1,3-tetrafluoro-2-methoxypropane.
26 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 30 to 60 wt % C 4 F 9 OCH 3 and 40 to 70 wt % 1,1,1,3-tetrafluoro-2-methoxypropane.
27 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 10 to 65 wt % C 4 F 9 OCH 3 and 35 to 90 wt % 1,1,1,3,3-pentafluoro-2-methoxypropane.
28 . The coolant according to claim 21 , forming an azeotropic or near-azeotropic mixture comprising 15 to 60 wt % C 4 F 9 OCH 3 and 40 to 85 wt % 1,1,1,3,3-pentafluoro-2-methoxypropane.
29 . The coolant according to claim 1 , wherein R 5 is methyl.
30 . The coolant according to claim 5 , wherein R 5 is methyl.
31 . The coolant according to claim 10 , wherein R 5 is methyl.
32 . The coolant according to claim 15 , wherein R 5 is methyl.