Gaz De France

Atochem

Bernard Genest

Henri Mathais

Rene Bertocchio

Paul Moffroid

Christian Aime

Claude Junet

The present invention relates to stable mixtures comprising a chlorofluorohydrocarbon as a heat transfer fluid, an amide or glycol ether compound as a solvent, and a zinc dialkyldithiophosphate as a stabilizer. The invention also relates to the use of these mixtures as heat transfer compositions for absorption heat pumps.

Stable mixtures of chlorofluorohydrocarbons and solvents and their use

Compositions for use as fluids in absorption heat pumps, which compositions comprise a chlorofluoro-hydrocarbon heat exchange fluid, an amide or glycol-ether solvent vehicle, and at least one metal salt of an alkylarylsulfonate which stabilizes the fluid against decomposition, together with use of the compositions in absorption heat pumps.

Stable mixtures of chlorofluorocarbons and solvents and their use as

The invention pertains to improvements brought to a heating facility which includes an associated absorbing heat pump cycle. The facility is designed for direct thermosiphon heating of the absorption solution to be regenerated upon contact with a panelling (15) which surrounds the combustion chamber (9). The separation of the solution to be regenerated is performed inside a separation column (14) which is connected to a dephlegmator (16) which improves the yield of the separation, the yield of the absorbing cycle and the recovery yield of heat supplied by the burner. Furthermore a heat exchanger (8) enables the operation of the facility with a de-activation of the absorbing cycle. The invention applies especially to central heating and to the heating of hygienic water.

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Paris, France

Bernard Genest