The waterfall magnetocalu00f3rica magnetocalu00f3rico, regenerator, heat pump, method for the manufacture of a cascade magnetocalu00f3rica, method of pumping heat

摘要

The invention relates to a cascade magnetocalu00f3rica containing a sequence of layers of material having different Curie temperatures magnetocalu00f3rico TC.In which the layers of material magnetocalu00f3rico include an outer layer of the side cold,An outer layer of hot side, and at least three inner layers between the outer layer and the outer layer of the cold side side hot,And each pair of adjacent layers magnetocalu00f3ricas near the waterfall magnetocalu00f3rica has a respective amount of difference in temperature of Curie temperatures TC between their respective Curie.In the outer layer of the outer layer of the lateral hot or cold side or the outer layer of the side hot and cold side have a greater proportion msmax / TC in comparau00e7u00e3With any one of the inner layers.M and the mass of the material layer magnetocalu00f3rico and Smax indicating a maximum amount of change in magnetic entropy isothermal attainable in a magnetic phase transition (The material layer magnetocalu00f3rico.