Disclosed herein is a method for producing cooling comprising evaporating a liquid refrigerant comprising (a) E-CF.sub.3CH═CHF and (b) at least one tetrafluoroethane of the formula C.sub.2H.sub.2F.sub.4; provided that the weight ratio of E-CF.sub.3CH═CHF to the total amount of E-CF.sub.3CH═CHF and C.sub.2H.sub.2F.sub.4 is from about 0.05 to 0.99, in an evaporator, thereby producing a refrigerant vapor. Also disclosed herein is a method for replacing HCFC-124 or HFC-134a refrigerant in a chiller designed for said refrigerant comprising providing a replacement refrigerant composition comprising (a) E-CF.sub.3CH═CHF and (b) at least one tetrafluoroethane of the formula C.sub.2H.sub.2F.sub.4; provided that the weight ratio of E-CF.sub.3CH═CHF to the total amount of E-CF.sub.3CH═CHF and C.sub.2H.sub.2F.sub.4 is from about 0.05 to 0.99. Also disclosed herein is a chiller apparatus for cooling, said apparatus containing a working fluid comprising a refrigerant comprising (a) E-CF.sub.3CH═CHF and (b) at least one tetrafluoroethane of the formula C.sub.2H.sub.2F.sub.4; provided that the weight ratio of E-CF.sub.3CH═CHF to the total amount of E-CF.sub.3CH═CHF and C.sub.2H.sub.2F.sub.4 is from about 0.05 to 0.99.

Electrical equipment including insulating fluid and having isoparaffins derived from a renewable carbon source, the fluid having a flash point of at least 210° C. and comprising at least 70 wt % of the isoparaffins. The electrical equipment can be installed and operated subsea.

The present disclosure relates to hexagonal boron nitride nanosheet/ceramic nanocomposite powder including surface-modified hexagonal boron nitride nanosheets which serve as a reinforcing agent for the matrix ceramic, and a method for producing the same, and a hexagonal boron nitride nanosheet/ceramic nanocomposite material including the hexagonal boron nitride nanosheet/ceramic nanocomposite powder and a method for producing the same.

A heat storage composition (20) of the present invention includes a matrix resin (21) and heat storage inorganic particles (22). The heat storage inorganic particles (22) are composed of a material that undergoes an electronic phase transition and has a latent heat of 1 J/cc or more for the electronic phase transition. The amount of the heat storage inorganic particles is 10 to 2000 parts by weight with respect to 100 parts by weight of the matrix resin. The heat conductivity of the heat storage composition is 0.3 W/m.Math.K or more. The heat storage composition may further include heat conductive particles (23, 24). The heat storage inorganic particles are preferably metal oxide particles containing vanadium as the main metal component. The heat storage composition has high heat storage properties and high heat conduction properties, and is used as a heat storage silicone material provided between a heat generating component and a case. Since heat from the heat generating component is temporarily stored in the heat storage composition so that the heat conduction is delayed, the heat is diffused during the delay to eliminate partial heating, thereby resulting in uniform heat dissipation.

A heat storage composition (20) of the present invention includes a matrix resin (21) and heat storage inorganic particles (22). The heat storage inorganic particles (22) are composed of a material that undergoes an electronic phase transition and has a latent heat of 1 J/cc or more for the electronic phase transition. The amount of the heat storage inorganic particles is 10 to 2000 parts by weight with respect to 100 parts by weight of the matrix resin. The heat conductivity of the heat storage composition is 0.3 W/m.Math.K or more. The heat storage composition may further include heat conductive particles (23, 24). The heat storage inorganic particles are preferably metal oxide particles containing vanadium as the main metal component. The heat storage composition has high heat storage properties and high heat conduction properties, and is used as a heat storage silicone material provided between a heat generating component and a case. Since heat from the heat generating component is temporarily stored in the heat storage composition so that the heat conduction is delayed, the heat is diffused during the delay to eliminate partial heating, thereby resulting in uniform heat dissipation.

A heat storage material composition contains sodium acetate, water, and an organic compound comprising a hydrophobic group and a hydrophilic group. A weight ratio R (sodium acetate/water) of the sodium acetate to the water is 57/43 or less. A concentration Ws of the sodium acetate in three components of the sodium acetate, the water, and the organic compound comprising a hydrophobic group and a hydrophilic group is 52% by weight or more. A concentration Wa of the organic compound comprising a hydrophobic group and a hydrophilic group in the three components is 1% by weight or more.

A lubricating oil composition for refrigerating machines contains a base oil and an additive in a form of a hydrocarbon compound having a biphenyl structure or a stilbene structure. When the present lubricating oil composition for refrigerating machines is used in refrigerating equipment such as an open-type automobile air-conditioner, an electric automobile air-conditioner, a gas heat pump, other air-conditioning equipment, a refrigerating machine, a vending machine, a showcase, a water-heating system and a refrigerating/heating system, it is possible to detect the leakage of a refrigerant with a long-lasting stability. Therefore, when an unsaturated chlorofluorocarbon refrigerant with a poor stability is used in the above-listed equipment, the present lubricating oil composition for refrigerating machines is significantly advantageous.

The present invention relates to coolants for cooling systems in electric vehicles having fuel cells and/or batteries, preferably for motor vehicles, particularly preferably for passenger cars and commercial vehicles (known as light and heavy duty vehicles), based on alkylene glycols or derivatives thereof, which comprise additional corrosion inhibitors for improved corrosion protection in addition to specific azole derivatives.

In one embodiment, a phase change material is encapsulated by forming a phase change material pellet, coating the pellet with flexible material, heating the coated pellet to melt the phase change material, wherein the phase change materials expands and air within the pellet diffuses out through the flexible material, and cooling the coated pellet to solidify the phase change material.

In one embodiment, a phase change material is encapsulated by forming a phase change material pellet, coating the pellet with flexible material, heating the coated pellet to melt the phase change material, wherein the phase change materials expands and air within the pellet diffuses out through the flexible material, and cooling the coated pellet to solidify the phase change material.