The present invention relates to compositions comprising at least one fluoroolefin, HFC-32, and an effective amount of at least one inhibitor. The stabilized compositions may be useful in cooling and heating apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.

A refrigeration apparatus includes a heat source unit, a utilization unit, and a liquid refrigerant pipe and gas refrigerant pipe. The utilization unit has utilization unit internal pipelines. The liquid refrigerant pipe and the gas refrigerant pipe connect the heat source unit and the utilization unit internal pipelines. A refrigerant circulates through the heat source unit, the utilization unit, the liquid refrigerant pipe, and the gas refrigerant pipe. The refrigerant contains a compound represented by a molecular formula having one or more carbon-carbon unsaturated bonds. A disproportionation inhibitor for reducing a disproportionation reaction of the refrigerant is applied to at least a part of inner surfaces of the liquid refrigerant pipe, the gas refrigerant pipe, and the utilization unit internal pipelines.

A phase change microcapsule having high blending fluidity and high latent heat of phase change, and a preparation method thereof is provided. The preparation method of the phase change microcapsules includes following steps of 1) heating and melting an organic phase change material to obtain a liquid core material; 2) evenly dispersing an emulsifying and dispersing agent in water, then adding carbamide, ammonium chloride and polyphenol, and mixing them evenly, followed by adjusting a pH value to 2.5-3.5 to obtain an aqueous phase solution; 3) adding the liquid core material and a defoaming agent to the aqueous phase solution to perform an emulsification to obtain an oil-in-water emulsion; and 4) adding a formaldehyde solution and a dispersing agent to the oil-in-water emulsion, after reaction is completed, performing a filtration, washing and drying.

Provided is a heat storage material composition that is less likely to vaporize and has a sufficiently stabilized supercooled state. A heat storage material composition according to an aspect of the present disclosure includes sodium acetate, water, and an alcohol. The alcohol includes at least one selected from the group consisting of 1,2-butanediol and a dihydric alcohol having 5 or 6 carbon atoms. The dihydric alcohol is for example a straight-chain alcohol. For example, two hydroxy groups contained in the dihydric alcohol are each bonded to a different one of a carbon atom at a 1-position and a carbon atom at a 2-position contained in the dihydric alcohol. The alcohol includes for example at least one selected from the group consisting of 1,2-butanediol, 1,2-pentanediol, and 1,2-hexanediol.

In one aspect, compositions are described herein. In some embodiments, a composition: comprises a phase change material, a hydrophobic sorption material, and a viscosity modifier. In some embodiments, a composition comprises a foam and a latent heat storage material dispersed in the foam, the latent heat storage material comprising a phase change material and a hydrophobic sorption material.

The position of the stabilizer container 7 in the circulation route is not limited. The stabilizer container 7 is preferably disposed between the evaporator and the condenser between which the refrigerant flows in the circulation route as a liquid refrigerant. Specifically, the stabilizer container 7 is preferably disposed between the outdoor heat exchanger 4 and the expansion mechanism 5 or between the indoor heat exchanger 6 and the expansion mechanism 5. During cooling, the outdoor heat exchanger 4 functions as a condenser and the indoor heat exchanger 6 functions as an evaporator. During heating, the outdoor heat exchanger 4 functions as an evaporator and the indoor heat exchanger 6 functions as a condenser. In either case of cooling or heating, the liquid refrigerant is present between the expansion mechanism 5 and the outdoor heat exchanger 4 or between the expansion mechanism 5 and the indoor heat exchanger 6 depending on the refrigerant circulation direction, and the stabilizer container 7 is located where the liquid refrigerant is present (i.e., between the expansion mechanism and whichever heat exchanger 4, 6 serves as the evaporator in the refrigerant circulation direction). Thus, as the liquid refrigerant passes through the stabilizer container 7, oxidation of the refrigerant can be efficiently prevented and acids in the circulation route can be efficiently scavenged.

The present invention relates to refrigerant compositions comprising at least one fluoroolefin, at least one lubricant and an effective amount of at least one inhibitor wherein the inhibitor is present in the fluoroolefin and the lubricant.

The present invention provides azeotropic and azeotrope-like compositions comprising E-1,1,1,4,4,4-hexafluorobut-2-ene with either ethanol or isopropanol that may be useful, for example, in heat transfer applications. Methods of using the compositions in refrigeration and heat transfer applications are also provided.

There is provided a working fluid for heat cycle that uses (Z)-1-chloro-2,3,3,3-tetrafluoropropane (HCFO-1224yd(Z)) which has a less impact on the ozone layer, has a less impact on global warming, and has excellent cycle performance, the working fluid for heat cycle having sufficiently ensured stability and having high productivity. The working fluid for heat cycle contains HCFO-1224yd(Z) and an impurity, wherein the impurity includes a specific trace component, and a total content ratio of the trace component to a total amount of the working fluid is less than 1.5 mass %.

The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling to apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.