Heat-transfer concentrate, method of manufacturing it and its use as well as a latent-heat accumulator making use of the concentrate
OwnerJochen Daume, Arnold Grimm +1inventors
InventorsJochen Daume, Arnold Grimm, Heinrich Bauer
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Abstract
A heat-transfer concentrate comprising a storage-stable dispersion of a heat-storage medium and gallium adsorbed onto a solid having either a particle diameter of 1 to 3 um or a pore diameter of 0.2 to 0.6 nm, or both, is provided. The invention also provides a method of manufacture for the concentrate, and a heat-transfer mixture comprising the heat-transfer concentrate and another heat-storage medium. The invention further provides methods of using the heat-transfer mixture to store and convey heat in reactors with heat exchangers, as well as methods of use in heat pumps and as a thermochemical energy-storage medium.
Claims51
A heat-transfer concentrate comprising a storage-stable dispersion of a heat-transfer effective amount of a heat-storage medium and a heat-transfer effective amount of gallium wherein the gallium is adsorbed onto a solid having either a particle diameter of 1 to 3 .mu.m or a pore diameter of 0.2 to 0.6 nm, or both.
A process for preparing a heat-transfer concentrate, comprising:
- a. melt mixing a heat-transfer effective amount of a heat-storage medium, a heat-transfer effective amount of a solid having either a particle diameter of 1 to 3 .mu.m or a pore diameter of 0.2 to 0.6 nm, or both, and a heat-transfer effective amount of gallium in liquid form;
- b. uniformly adsorbing the gallium onto the solid;
- and
- c. homogeneously dispersing the solid laden with gallium and the heat storage medium.
Dependencies are inferred from the claim text.