Compositions and Use of Vinylidene Fluoride and Blends Thereof
The present technology relates to compositional blends that can be used as refrigerants, and more specifically to blends of vinylidene fluoride and at least one other component for use in very low temperature applications. In at least some examples, the second component can be selected from the group consisting of carbon dioxide and pentafluoroethane. Further, the compositions can be azeotropic or azeotrope-like.
1 . A refrigerant composition comprising a mixture of vinylidene fluoride and a second component, wherein the mixture has an ozone depletion potential of less than about 0.001, and a Global Warming Potential relative to carbon dioxide for an Integration Time Horizon of 100 years that is less than about 1,000.
2 . The refrigerant composition of claim 1 , wherein the second component comprises pentafluoroethane.
3 . The refrigerant composition of claim 1 , wherein the composition is an azeotropic or azeotrope-like composition.
4 . The refrigerant composition of claim 1 , wherein the composition comprises vinylidene fluoride in an amount from about 99 wt % to about 20 wt % based on the total weight of the composition, and pentafluoroethane in an amount from about 1 wt % to about 80 wt % based on the total weight of the composition.
5 . The refrigerant composition of claim 4 , wherein the composition comprises vinylidene fluoride in an amount from about 90 wt % to about 20 wt % based on the total weight of the composition, and pentafluoroethane in an amount from about 10 wt % to about 80 wt % based on the total weight of the composition.
6 . The refrigerant composition of claim 4 , wherein the composition comprises vinylidene fluoride in an amount from about 80 wt % to about 40 wt % based on the total weight of the composition, and pentafluoroethane in an amount from about 20 wt % to about 60 wt % based on the total weight of the composition.
7 . A method of using a composition as a refrigerant, the method comprising the steps of:
providing a refrigeration system; and
adding a composition as a refrigerant to the refrigeration system, the composition comprising vinylidene fluoride and a second component.
8 . The method of claim 7 , wherein the second component comprises pentafluoroethane.
9 . The method of claim 7 , wherein the composition in an azeotropic or azeotrope-like composition.
10 . The method of claim 8 , wherein the composition comprises vinylidene fluoride in an amount from about 99 wt % to about 1 wt % based on the total weight of the composition, and carbon dioxide in an amount from about 1 wt % to about 99 wt % based on the total weight of the composition.
11 . The method of claim 8 , wherein the composition comprises vinylidene fluoride in an amount from about 99 wt % to about 20 wt % based on the total weight of the composition, and pentafluoroethane in an amount from about 1 wt % to about 80 wt % based on the total weight of the composition.
12 . The method of claim 8 , wherein the composition comprises vinylidene fluoride in an amount from about 90 wt % to about 20 wt % based on the total weight of the composition, and pentafluoroethane in an amount from about 10 wt % to about 80 wt % based on the total weight of the composition.
13 . The method of claim 8 , wherein the composition comprises vinylidene fluoride in an amount from about 80 wt % to about 40 wt % based on the total weight of the composition, and pentafluoroethane in an amount from about 20 wt % to about 60 wt % based on the total weight of the composition.
14 . The method of claim 7 , wherein the method comprises the steps of:
providing a refrigeration system that includes R508B as a refrigerant;
removing R508B from the refrigeration system; and
adding a composition as a refrigerant to the refrigeration system, the composition comprising vinylidene fluoride and a second component.