Adsorber and its use in heat accumulators and heat pumps, or refrigerators
OwnerIvan Brovchenko, Alla Oleinikova +2inventors
InventorsIvan Brovchenko, Alla Oleinikova, Alfons Geiger, Ferdinand Schmidt
Life of this patent
Estimating the term…
Abstract
The invention relates to an adsorbent having a porous carrier structure, the pore walls of which are coated with a material which displays a temperature-induced reversible switching-over of the surface properties from hydrophilic to hydrophobic behaviour, the hydrophobicity increasing with rising temperature.
Claims18
Adsorbent containing a porous carrier structure, the pore walls being coated with at least one polymer, oligomer and/or blends thereof and this coating displaying a temperature-induced reversible switching-over of the surface properties from hydrophilic to hydrophobic behaviour, the hydrophobicity increasing with rising temperature.
Adsorbent according to the preceding claim, characterised in that the LCST polymer is selected from the group comprising N-substituted poly(meth)acrylamides, poly(N-vinylcaprolactam), polyalkylene oxides, polyalkylene glycols, poly(vinylalkyl ether), hydroxyalkyl celluloses and also copolymers or blends thereof.
Adsorbent according to the preceding claim, characterised in that the biopolymer is selected from the group of peptides.
Use according to the preceding claim for the adsorption of water.
Use of the adsorbent according to the preceding claim, characterised in that the adsorbent is introduced into a heat exchanger in such a manner that the desorbed vapour within the heat exchanger unit can condense on the surface of the adsorbent and the condensate can discharge and be supplied to a condensate return to the evaporator.
Dependencies are inferred from the claim text.