Abstract: The present invention relates to a closed circuit operating on a Rankine cycle, the circuit comprising at least one compression and circulation pump for a working fluid in liquid form, a heat exchanger over which a hot source is swept in order to evaporate the fluid, means for expanding the fluid in the form of a vapor, a cooling exchanger swept by a cold source to condense the working fluid, a reservoir of working fluid, and working fluid circulation pipes for circulating the fluid between the pump, the heat exchanger, the expansion means, the condenser and the reservoir. The circuit comprises a device for draining the fluid contained in the heat exchanger.

Abstract: A method and device for detecting and extracting a gaseous fluid contained in a closed loop operating on a Rankine cycle are provided. The loop includes a multiplicity of constituents with, successively, a circulation and compression pump for a working fluid, a heat exchanger associated with a hot source, an expansion machine, a cooling exchanger, a working fluid tank and circulation pipes connecting these constituents. The method and device measure the temperature (Tréelle) and the pressure (Préelle) of the working fluid at a point of the loop when this loop is at rest, and, as soon as the measured pressure (Préelle) exceeds a threshold value (Pliquide saturé) for a given ambient temperature (T), activate equipment for extracting the gaseous fluid in order to discharge it from the loop.

Abstract: The present invention relates to a method for detecting and extracting a gaseous fluid contained in a closed loop (10) operating on a Rankine cycle, said loop comprising a multiplicity of constituents with, successively, a circulation and compression pump (12) for a working fluid, a heat exchanger (18) associated with a hot source (24), an expansion machine (30), a cooing exchanger (40), a working fluid tank (46) and circulation pipes (50, 52, 54, 56, 58, 60) connecting these constituents. The invention comprises: —measuring the temperature (Tréelle) and the pressure (Préelle) of the working fluid at a point of the loop when this loop is at rest, and —as soon as the measured pressure (Préelle) exceeds a threshold value (Pliquide saturé) for a given ambient temperature (T), activating an equipment (62) for extracting the gaseous fluid in order to discharge it from the loop.

Abstract: The present invention relates to a closed circuit (10) operating on a Rankine cycle, said circuit comprising at least one compression and circulation pump (12) for a working fluid in liquid form, a heat exchanger (18) over which a hot source (23) is swept in order to evaporate said fluid, means (26) for expanding the fluid into the form of a vapor, a cooling exchanger (34) swept by a cold source to condense the working fluid, a reservoir (40) of working fluid, and working fluid circulation pipes (44, 46, 50, 52, 54) for circulating said fluid between the pump, the heat exchanger, the expansion means, the condenser and the reservoir. According to the invention, the circuit comprises a device (56) for draining the fluid contained in the heat exchanger (18).