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Application of aluminium sponges in the adsorption refrigeration engineering

Anwendung von Aluminiumschwämmen in der Adsorptionskältetechnik
: Berg, A.; Baumeister, J.; Rausch, G.; Busse, M.; Schnabel, L.

Lefebvre, L.P.:
Porous metals and metallic foams, MetFoam 2007 : Proceedings of the Fifth International Conference on Porous Metals and Metallic Foams. September 5-7, 2007, Montreal, Canada
Lancaster, Pa.: DEStech Publications, 2008
ISBN: 978-1-932078-28-2
ISBN: 1-9320-7828-2
International Conference on Porous Metals and Metallic Foams (MetFoam) <5, 2007, Montreal>
Conference Paper
Fraunhofer IFAM ()
Fraunhofer ISE ()
Adsorber; Aluminiumschaum; Kältetechnik; Stoffübergang; Wärmeleitfähigkeit

Today the market of refrigeration engineering (air conditioning technology, refrigerators) is dominated from compression refrigerators. However, the focus of the present development, are adsorption refrigerators based on devices implementing a higher effectiveness and an environmental compliance with rising efforts for reduction of pollution compared to compression refrigerators. The central module of adsorption refrigerators is the adsorber, were the evaporation and the condensation of the cooling solvent takes place. This paper deals with an adsorber characterized by an open porous supporting structure. This structure comprises high heat conductivity. It is coated with a normally poor heat conducting adsorbent layer. Suitable supporting structures for adsorbers are aluminuim sponges with a high specific surface and a high permeability for fluids and gases. On this basis a new generation of innovative adsorber elements can be developed. In this paper the production and the improvement of the aluminium sponge structure is described with respect to its applicability in the adsorption refrigeration technology.
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