Low-melting point heat transfer fluid
AssigneeSandia Corporation
InventorsJoseph Gabriel Cordaro, Robert W. Bradshaw
Life of this patent
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Abstract
A low-melting point, heat transfer fluid made of a mixture of five inorganic salts including about 29.1-33.5 mol % LiNO3, 0-3.9 mol % NaNO3, 2.4-8.2 mol % KNO3, 18.6-19.9 mol % NaNO2, and 40-45.6 mol % KNO2. These compositions can have liquidus temperatures below 80° C. for some compositions.
Claims6
A heat transfer fluid having a liquidus temperature of 95° C. or below comprising a mixture of LiNO3, NaNO3, KNO3, NaNO2 and KNO2 salts consisting essentially of about 17.2 wt % LiNO3, 15.9 wt % NaNO3, 18.9 wt % KNO3, 21.5 wt % NaNO2 and 26.5 wt % KNO2.
A heat transfer fluid having a liquidus temperature of 85° C. or below comprising a mixture of LiNO3, NaNO3, KNO3, NaNO2 and KNO2 salts consisting essentially of about 26.5 wt % LiNO3, 4.2 wt % NaNO3, 12.5 wt % KNO3, 13.8 wt % NaNO2 and 43 wt % KNO2.
A heat transfer fluid having a liquidus temperature of 80° C. or below comprising a mixture of LiNO3, NaNO3, KNO3, NaNO2 and KNO2 salts consisting essentially of about 25.5 wt % LiNO3, 4.2 wt % NaNO3, 10.6 wt % KNO3, 16.4 wt % NaNO2 and 43.3 wt % KNO2.
A heat transfer fluid having a liquidus temperature of about 85° C. or below comprising a LiNO3, KNO3, NaNO2 and KNO2 salt mixture consisting essentially of about 25.4 wt % LiNO3, 20.7 wt % KNO3, 20.1 wt % NaNO2 and 33.8 wt % KNO2.
A heat transfer fluid having a liquidus temperature of 75° C. or below comprising a mixture of LiNO3, KNO3, NaNO2 and KNO2 salts consisting essentially of about 26.2 wt % LiNO3, 10 wt % KNO3, 17.5 wt % NaNO2 and 46.3 wt % KNO2.
A heat transfer fluid having a liquidus temperature of 70° C. or below comprising a mixture of LiNO3, KNO3, NaNO2 and KNO2 salts consisting essentially of about 30 wt % LiNO3, 3.1 wt % KNO3, 16.7 wt % NaNO2 and 50.2 wt % KNO2.
Dependencies are inferred from the claim text.