Abstract:
The use of a composition including a polyol ester-based lubricant and a refrigerant F including at least one tetrafluoropropene and at least one hydrofluorocarbon, in a heat transfer system containing a vapour compression circuit including an oil separator. A heat transfer system including a vapour compression circuit containing a composition including a polyol ester lubricant, and a refrigerant F including at least one tetrafluoropropene and at least one hydrofluorocarbon, as a heat transfer composition, said vapour compression circuit including an oil separator.
Abstract:
The Invention Relates To A Battery Compartment For An Electric Or Hybrid Vehicle, Characterised In That It Consists Of A Composition Comprising: —20 To 80 Wt % Of Reinforcement Fibres Relative To The Total Weight Of The Composition; —0 To 20 Wt % Of At Least One Impact Modifier Relative To The Total Weight Of The Composition; —0 To 20 Wt % Of Additives Relative To The Total Weight Of The Composition; —The Remainder Being A Matrix Comprising: —Mainly At Least One Polyamide And —At Least One Flame Retardant.
Abstract:
Azeotropic compositions including between 74 and 81.5 wt.-% HFO-1324yf, between 6.5 and 10.5 wt.-% HFC-134a, and between 12 and 16 wt.-% HFC-152a, relative to the total weight of the composition, the azeotropic composition having a boiling point of between −40.00° C. and 70.00° C., at a pressure of between 0.5 and 21.0 bar abs (±0.5%). Also, the uses of the aforementioned compositions in heat transfer systems.
Abstract:
The present invention relates to compositions comprising 1,1,1,2,2-pentafluoropropane and trans-1,3,3,3-tetrafluoropropene, which are of use in numerous fields of application.
Abstract:
The invention relates to the use of a gas as a medium for electrically isolating and/or extinguishing electric arcs, said gas comprising a hexafluorobutene. The invention also relates to an electric device comprising a sealed chamber inside which electric components and said gas are located.
Abstract:
A method for heating a fluid or a body using a vapour compression circuit containing a heat-transfer fluid containing tetrafluoropropene, said method including, successively and cyclically, evaporation of the heat-transfer fluid, compression of the heat-transfer fluid, cooling of the heat-transfer fluid and expansion of the heat-transfer fluid, the heat-transfer fluid being in the supercritical state at the end of compression. Also, an installation suited to implementing this method.
Abstract:
A composition includes between 11 and 13 wt. % of difluoromethane; between 58 and 62 wt. % of pentafluoroethane; between 18 and 29 wt. % of tetrafluoropropene; and between 0 and 7 wt. % of propane. The tetrafluoropropene can be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. The composition can be used as a heat transfer fluid in a vapour compression circuit.
Abstract:
A composition includes between 11 and 13 wt. % of difluoromethane; between 58 and 62 wt. % of pentafluoroethane; between 18 and 29 wt. % of tetrafluoropropene; and between 0 and 7 wt. % of propane. The tetrafluoropropene can be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. The composition can be used as a heat transfer fluid in a vapour compression circuit.
Abstract:
Compositions which are based on tetrafluoropropene and more particularly relates to compositions including 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which can be used as a heat transfer fluid. The compositions may include 60% to 79% by weight of 2,3,3,3-tetrafluoropropene and 21% to 40% by weight of a compound selected from difluoroethane and difluoromethane.
Abstract:
Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134a and between 5 and 10 wt. % of HFC-32. Compositions essentially containing from 10 to 45% by weight of 2,3,3,3-tetrafluoropropene, from 50 to 80% by weight of HFC-134a and from 5 to 10% by weight of HFC-32.