Azeotropic working fluids and thermal management systems utilizing the same
A thermal management system includes a heat transport component and a water-based azeotropic mixture disposed within the heat transport component to move heat from one portion of the heat transport component to another. The mixture includes at least 50% water.
1. A thermal management system comprising:
a heat transport component; and
a water-based azeotropic mixture disposed within the heat transport component to move heat from one portion of the heat transport component to another;
wherein the mixture includes at least 50% water;
wherein the mixture includes both water and pyridine, wherein the heat transport component is a heat pipe, and wherein the mixture has substantially no change in volume upon freezing.
2. The thermal management system of claim 1 , wherein the mixture has a liquid transport factor of greater than 1000 kW/cm 2 at 600K, wherein the liquid transport factor is defined by the product of a heat of vaporization by a surface tension by a liquid density, divided by a liquid viscosity (λσρ/μ).
3. The thermal management system of claim 1 , wherein the pH of the mixture is greater than 11.2 at 25° C.
4. The thermal management system of claim 1 , wherein the heat pipe includes a wick structure.
5. A thermal management system comprising:
a heat transport component; and
a water-based azeotropic mixture disposed within the heat transport component to move heat from one portion of the heat transport component to another;
wherein the mixture has a pH that is greater than 11.2 at 25° C.;
wherein the mixture includes water and pyridine, and wherein the heat transport component is a heat pipe.
6. The thermal management system of claim 5 , wherein the mixture has substantially no change in volume upon freezing.
7. The thermal management system of claim 5 , wherein the mixture is biodegradable.
8. The thermal management system of claim 5 , wherein the heat pipe includes a wick structure.
9. A thermal management system comprising:
a heat transport component; and
a water-based azeotropic mixture disposed within the heat transport component to move heat from one portion of the heat transport component to another;
wherein the mixture includes at least 50% water;
wherein the mixture includes water and pyridine, wherein the heat transport component is a heat pipe, wherein the mixture has a liquid transport factor of greater than 1000 kW/cm 2 at 600K, wherein the liquid transport factor is defined by the product of a heat of vaporization by a surface tension by a liquid density, divided by a liquid viscosity (λσρ/μ).