Abstract: A system for air handling and air conditioning to supply cool air inside a volume, the system including at least one enthalpy exchanger module including a dual airflow, enabling a heat transfer and a water vapor transfer between both airflows, the system configured to operate according to a cooling mode of the volume in which both airflows are respectively made of an outside airflow to be introduced into the volume, and a cooler dryer foul airflow, coming from inside of the volume. The system further includes: a mechanism enabling relative humidity of the outside airflow at an inlet of the enthalpy exchanger module to be determined; and a controller configured to command a heat supply to the outside airflow before it enters the module, when the relative humidity thereof exceeds a predetermined value.

Abstract: A heat exchange structure is provided, including a primary face provided with non-through holes formed in said face, the inner surface of the holes and the surface of said primary face outside the holes being covered with nanoparticles, the inside of the holes having a non-wettability property relative to a given liquid and the surface of the face between the holes having a wettability property relative to the liquid.

Abstract: A dual air flow exchanger, enabling heat transfer and humidity transfer between two air flows, and including a plurality of air circulation networks stacked on each other along a stacking direction and separated in pairs by membranes permeable to water vapor and impermeable to air. At least one of the networks is made from a honeycomb structure with its two sides bearing on two of the membranes, the structure including cylindrical cells with axes parallel to the direction, and in which at least some of the cell faces are perforated to allow air passage.

Abstract: A radiator for domestic heating with a heat-transfer fluid operating in two-phase form includes a reservoir of the heat-transfer fluid; a hot source, intended to raise the temperature of the heat-transfer fluid to a temperature such that it causes said fluid to undergo a change of phase; and a heater, at which the heat transfer with ambient air takes place, having n channels, communicating in a lower zone with the reservoir, it being possible for n to be equal to 1. The heat-transfer fluid is a mixture of at least two different heat-transfer liquids, the heat-transfer liquids having between them boiling points differing by at least ten degrees Celsius, and the liquid with the lowest boiling point representing 70% to 95% of the volume of the mixture for a mixture temperature of about 20° C.

Abstract: Embodiments of the present invention relate generally to improved cooling systems and methods for use on aircraft trolleys and compartments. The systems use absorptive cooling with thermal conductive plates strategically positioned in order to keep trolleys and their contents cooled.

Abstract: A dual air flow exchanger, enabling heat transfer and humidity transfer between two air flows, and including a plurality of air circulation networks stacked on each other along a stacking direction and separated in pairs by membranes permeable to water vapor and impermeable to air. At least one of the networks is made from a honeycomb structure with its two sides bearing on two of the membranes, the structure including cylindrical cells with axes parallel to the direction, and in which at least some of the cell faces are perforated to allow air passage.

Abstract: A radiator for domestic heating with a heat-transfer fluid operating in two-phase form includes a reservoir of the heat-transfer fluid; a hot source, intended to raise the temperature of the heat-transfer fluid to a temperature such that it causes said fluid to undergo a change of phase; and a heater, at which the heat transfer with ambient air takes place, having n channels, communicating in a lower zone with the reservoir, it being possible for n to be equal to 1. The heat-transfer fluid is a mixture of at least two different heat-transfer liquids, the heat-transfer liquids having between them boiling points differing by at least ten degrees Celsius, and the liquid with the lowest boiling point representing 70% to 95% of the volume of the mixture for a mixture temperature of about 20° C.

Abstract: A heat exchange structure including a primary face including non-through holes formed in the face. The inner surface of the holes and the surface of the primary face outside the holes are covered with nanoparticles. The inside of the holes have a non-wettability property relative to a given liquid and the surface of the face between the holes have a wettability property relative to the liquid.

Abstract: A home heating radiator using a heat transfer fluid operating in phase change form, includes a reservoir of heat transfer fluid, and electric resistance heat source, for raising the temperature of the heat transfer fluid to a temperature such as to cause a phase change of the fluid, and a heating body where heat transfer takes place with the ambient air, the heating body including a number, n, of channels, communicating in the lowermost part of the reservoir, where n may be equal to 1.

Abstract: A vapour compression device including an internal heat exchanger, a low-pressure compressor and an associated gas cooler, a fluid distributor separating the fluid into a main circuit of the cycle and into an auxiliary cooling circuit of the cycle, an auxiliary expansion system placed on the auxiliary cooling circuit, and a main expansion system placed on the main circuit of the cycle. The device also includes a high-pressure compressor and an associated gas cooler placed on the main circuit of the cycle. A method for performing a transcritical fluid cycle including a substantially isentropic compression step of the fluid, on the main circuit of the cycle, to reach a maximum high pressure greater than a critical pressure of the fluid, and an isobaric cooling step of the fluid to substantially reach a cold source temperature.

Abstract: This home heating radiator using a heat transfer fluid operating in phase change form, comprises: a reservoir (3) of said heat transfer fluid; a heat source (6), consisting of an electric resistance, for raising the temperature of said heat transfer fluid to a temperature such as to cause a phase change of said fluid; a heating body where heat transfer takes place with the ambient air, comprising a number n of channels (4), communicating in the lowermost part of the reservoir (3), where n may be equal to 1.

Abstract: The vapour compression device according to the invention comprises an internal heat exchanger, a low-pressure compressor and an associated gas cooler, a fluid distributor separating the fluid into a main circuit of the cycle and into an auxiliary cooling circuit of the cycle, an auxiliary expansion system placed on the auxiliary cooling circuit, and a main expansion system placed on the main circuit of the cycle. The device also comprises a high-pressure compressor and an associated gas cooler placed on the main circuit of the cycle. The method for performing a transcritical fluid cycle according to the invention preferably comprises an isentropic compression step of the fluid, on the main circuit of the cycle, to reach a maximum high pressure greater than a critical pressure of the fluid, and an isobaric cooling step of the fluid to substantially reach a cold source temperature.

Abstract: The invention relates to a heat exchanger comprising a supercritical carbon-dioxide circuit comprising a plurality of tubes (1). The heat exchanger is original in that at least one section of the tubes (1) have surface irregularities (3) on their inner surface. These irregularities (3) are located within a zone (6) extending as far as a point located at a distance from the inlet (7) of the tube of maximum 400 times the diameter of the tube.

Abstract: The invention relates to a heat exchanger comprising a supercritical carbon-dioxide circuit comprising a plurality of tubes (1). The heat exchanger is original in that at least one section of the tubes (1) have surface irregularities (3) on their inner surface. These irregularities (3) are located within a zone (6) extending as far as a point located at a distance from the inlet (7) of the tube of maximum 400 times the diameter of the tube.