Method for production of mixed vapour

Method of producing mixed vapor for operating a heat engine, comprising:

• producing a mixed vapor in a first pressure chamber from a non-polar fluid and a polar fluid at a low temperature;
• enriching the mixed vapor with a polar fluid at a slightly higher temperature in a downstream enriching vessel comprising a second pressure chamber;
• compressing the enriched mixed vapor by means of a heat engine;
• adiabatically expanding the mixed vapor to create wet vapor, the polar fluid condensing and heat released thereby being output to the non-polar fluid;
• transferring work released during the adiabatic expansion of the mixed vapor to the heat engine;
• and
• returning the expanded wet vapor to the first pressure chamber.