초록 ▼

A magnetic refrigeration apparatus has an annular container including a plurality of magnetic regenerator compartments containing magnetocaloric material, and a magnet mounted for rotation around the annular container, whereby the motion of the magnet produces a variation of magnetic field strength

A magnetic refrigeration apparatus has an annular container including a plurality of magnetic regenerator compartments containing magnetocaloric material, and a magnet mounted for rotation around the annular container, whereby the motion of the magnet produces a variation of magnetic field strength in the magnetic regenerator compartments, which in term leads to a variation in temperature of the magnetocaloric material in the magnetic regenerator compartments. Heat transfer fluid is propelled by a pump, and directed to and from the regenerator compartments and hot and cold heat exchangers by valves. Each valve includes an axial port and a plurality of radial ports.

대표청구항 ▼

A magnetic refrigeration apparatus has an annular container including a plurality of magnetic regenerator compartments containing magnetocaloric material, and a magnet mounted for rotation around the annular container, whereby the motion of the magnet produces a variation of magnetic field strength

A magnetic refrigeration apparatus has an annular container including a plurality of magnetic regenerator compartments containing magnetocaloric material, and a magnet mounted for rotation around the annular container, whereby the motion of the magnet produces a variation of magnetic field strength in the magnetic regenerator compartments, which in term leads to a variation in temperature of the magnetocaloric material in the magnetic regenerator compartments. Heat transfer fluid is propelled by a pump, and directed to and from the regenerator compartments and hot and cold heat exchangers by valves. Each valve includes an axial port and a plurality of radial ports. idths, in said chamber interior, and have coils along their lengths. 13. A hot exhaust gas heat recovery system comprising, in combination a) a structure forming a chamber having inlet and outlet porting for flow through of hot exhaust gas, in the chamber interior, b) separate heat exchanger structures in separate zones which are sequential in the direction of flow of the exhaust gases, said heat exchanger structures receiving liquid or vapor for flow in different paths there-through, to develop vapor streams at different pressures and temperatures without use of boiler drums, c) wherein said heat exchanger structures are located to each intercept a different fraction of the hot gas stream to provide the required heat to produce the required condition at the exist of the heat exchanger structures, d) wherein said heat exchanger structures have outlets to communicate with a vapor driven turbine or turbines having inlet ports requiring different inlet fluid pressures wherein said inlet fluid pressures are at successively lower pressures corresponding to the pressures produced by the separate heat exchanger structures. 14. The combination of claim 13 wherein there are more than one heat exchanger structure in each zone and extending longitudinally in the zone, each intercepting a different fraction of the hot exhaust gas. 15. The combination of claim 13 wherein said structures have different longitudinal lengths and widths in said chamber interior and have coils or plate-fin heat exchanger passages along their length.