HEAT EXCHANGER BEDS MADE OF THERMOMAGNETIC MATERIAL

摘要

The invention relates to a packed heat exchanger bed made of thermomagnetic material particles, comprising an average diameter in the range of 50 µm to 1 mm and resulting in a porosity in the range of 30 to 45% in the packed bed, and a heat exchanger bed made of a thermomagnetic material monolith comprising through channels having a cross-sectional area of the individual channels in the range of 0.001 to 0.2 mm2 and a wall thickness of 50 to 300 µm, having a porosity in the range of 10 to 60%, and having a ratio of surface area to volume in the range of 3000 to 50000 m2/m3, or comprising a plurality of parallel plates having a plate thickness from 0.1 to 2 mm and a plate spacing distance of 0.05 to 1 mm.