Abstract: The invention concerns a rotary magnetic refrigerator/heat pump able to operate in a continuously working process, able to be applied in industrial thermal processes and having a high efficiency and a low cost manufacturing. The rotary magnetic refrigerator (10) comprises a magnet (11), a magnetocaloric ring (12) and a fluid conducting subassembly (13). The fluid conducting subassembly (13) comprises a horizontally positioned rotating disc (14), frame-suspended with bearings (15 and 16) in stationary ducts above (17) and below (18), which serve to supply and evacuate a working fluid (19, 20, 21, 22). The rotating disc (14) has two circular arrays of hollow sectors (23 and 24), one close to each of its planar faces. Every hollow sector (23 and 24) comprises a slot (25 and 26) to the adjacent planar surface and to the circumferential surface of the rotating disc (14).

Abstract: The device (10), for the continuous generation of cold and heat by magneto-calorific effect, comprises a mixture of a heat exchange fluid and particles made from at least one magneto-calorific material, superconductor or phase-change material circulating through a first heat exchanger (11) subject to a magnetic field generated by magnetic device (14), associated with the first heat exchanger (11). On passing into the generated magnetic field, the particles undergo an increase in temperature and heat the mixture in the first heat exchanger (11) and on leaving the magnetic field, the particles undergo a reduction in temperature to cool a mixture entering a second heat exchanger (12). A cold circuit (16) extracts the cold from the second heat exchanger (12) and a hot circuit (15) extracts the heat from the first heat exchanger (11).

Abstract: The device (10) for continuous generation of cold and heat by the magneto-calorific effect, comprises a chamber (11), divided into two adjacent compartments (12, 13), separated by a wall (14). The chamber (11) contains a rotating element (15) made from at least one magneto-calorific material, a first circuit (17a) with a first heat exchange fluid circulating therein and a second circuit (17b) with a second heat exchange fluid circulating therein. The chamber (11) is connected to magnetic device (16) for generating a magnetic field in the region of the compartment (12) in which the rotating element (15) is located. When the above is set in rotation the part thereof located in the first compartment (12) is magnetized upon undergoing an increase in temperature. On passing into the second compartment (13), the part is demagnetized upon undergoing a cooling.

Abstract: The invention relates to a method and a device for the continuous measurement (30) of the thermal conductivity of a multifunctional fluid.