Safran Electrical & Power

Centre National De La Recherche Scientifique-Cnrs

Institut National Polytechnique De Toulouse

Université Des Sciences Et Technologies De Lille

Ecole Nationale Superieure De Chimie De Lille

Centre National De La Recherche Scientifique

Institut National Polytechnique

Vincent Gerbaud

Jean-Marie Aubry

Nicolas Delalandre

Ivonne Rodriguez-Donis

Benjamin Roland Stanislas Joossen

A coolant mixture including water and at least one of the compounds chosen from 1-methoxy-2-propanol and 1-ethoxy-2-propanol in the proportions of the corresponding azeotrope or in near-azeotropic proportions. Such a mixture can be used as a heat-transfer fluid in a heat-exchange device, which can be incorporated into an aircraft or spacecraft. A method for obtaining a mixture by fractional distillation is also disclosed.

Coolant mixtures for use in heat-exchange devices in the aerospace field

The present invention relates to a cooling mixture comprising a fluorinated compound and a non-fluorinated compound, wherein the fluorinated compound is a hydrofluoroether and the non-fluorinated compound includes a carbonyl function, which has a flash point no lower than 23&#xb0; C. and which is characterised by having low relative volatility. The present invention likewise relates to the use of such a mixture as a coolant in a heat-exchange device.

Non-flammable or weakly flammable cooling mixtures, characterised by low relative volatility for two-phase heat-exchange systems

Growing community of inventors

Merville, France

Vincent Gerbaud