Methods for producing a dimensionally stable phase change material (PCM), and dimensionally stable PCMs are disclosed. The methods include providing a porous base material, mixing a phase change material having a polar functional group with a substance that increases the polar attraction of the phase change material for the porous base material to form a mixture thereof; and, thereafter, mixing the mixture with the porous base material until a selected saturation of phase change material in the porous base material is reached. The methods may include filtering the porous base material after the selected saturation is reached to form a cake of dimensionally stable PCM and, thereafter, reducing the size of the dimensionally stable PCM to an average mean particle size of about 10 to about 50 m, or more preferably 20 to 30 m.

Disclosed herein is a heat transfer fluid additive composition comprising: greater than or equal to 10 weight percent (wt %) of a carboxylic acid, based on the total weight of the composition; an azole compound; and a base, wherein the base is present in an amount sufficient to obtain a pH 8-10.5 when diluted by 50 volume % with water. The heat transfer fluid additive composition can be combined with other components to form a heat transfer fluid. The heat transfer fluid can be used in a heat transfer system.

Examples are disclosed that relate to the manufacture of a reinforced graphitic material. One example provides a method for making a reinforced graphitic material including sorbing an organic compound into void space of a graphitic host material, and heating the graphitic host material to pyrolyze the sorbed organic compound. Elemental carbon is thereby deposited in the void space.

A moldable mass contains graphite and a phase change material (PCM). The moldable mass further contains a binder and microcapsules having the PCM. A process produces a molding from the moldable mass, and the molding is used to produce various products such as cooling elements, battery temperature control elements, cooling elements for vehicle cabins, electronic components, and motors.

Disclosed is a mixture comprising the compound trans-1,1,1,4,4,4-hexafluoro-2-butene and 1,1-difluoroethane (R-152a). Also disclosed are methods of using and products of using the above compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.

Disclosed is a mixture comprising the compound trans-1,1,1,4,4,4-hexafluoro-2-butene and 1,1-difluoroethane (R-152a). Also disclosed are methods of using and products of using the above compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.

The present invention relates to a nano-diamond, a method of manufacturing the same, and a nano-fluid using the same. The nano-diamond is prepared to comprise functional group represented by the following Chemical Formula 1 that is introduced onto a surface thereof. ##STR00001##

Disclosed is a mixture comprising the compound trans-1,1,1,4,4,4-hexafluoro-2-butene and at least one additional compound selected from the group consisting of HFOs, HFCs, HFEs, CFCs, CO2, olefins, organic acids, alcohols, hydrocarbons, ethers, aldehydes, ketones, and others such as methyl formate, formic acid, trans-1,2 dichloroethylene, carbon dioxide, cis-HFO-1234ze+HFO-1225yez; mixtures of these plus water; mixtures of these plus CO2; mixtures of these trans 1,2-dichloroethylene (DCE); mixtures of these plus methyl formate; mixtures with cis-HFO-1234ze+CO2; mixtures with cis-HFO-1234ze+HFO-1225yez+CO2; and mixtures with cis-HFO-1234ze+HFC-245fa. Also disclosed are methods of using and products of using the above compositions as blowing agents, solvents, heat transfer compositions, aerosol propellant compositions, fire extinguishing and suppressant compositions.

A heat storage apparatus includes: a first tank; a second tank that is provided above the first tank; an on-off valve; and a heat storage solution that is accommodated in the first tank and the second tank. The heat storage solution has a characteristic of absorbing heat and separating into a first liquid and a second liquid having a lower density than the first liquid at a lower critical solution temperature or higher, the first liquid and the second liquid have a characteristic of releasing heat and mixing with each other at a temperature lower than the lower critical solution temperature, and when the heat storage solution separates into the first liquid and the second liquid, the first liquid is accommodated in the first tank and the second liquid is accommodated in the second tank.

A heat storage apparatus includes: a first tank; a second tank that is provided above the first tank; an on-off valve; and a heat storage solution that is accommodated in the first tank and the second tank. The heat storage solution has a characteristic of absorbing heat and separating into a first liquid and a second liquid having a lower density than the first liquid at a lower critical solution temperature or higher, the first liquid and the second liquid have a characteristic of releasing heat and mixing with each other at a temperature lower than the lower critical solution temperature, and when the heat storage solution separates into the first liquid and the second liquid, the first liquid is accommodated in the first tank and the second liquid is accommodated in the second tank.