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System, Verbund und Verfahren zu Wassergewinnung durch Aufnahme von Luftfeuchtigkeit aus der Umgebung

System for drinking water extraction by absorption of atmospheric moisture from environment using sorbent, has hydrogel provided as sorbent, where water discharge of hydrogel is switched by change in ambient temperature in condensed form
 
: Storsberg, J.; Laschewsky, A.; Wischerhoff, E.; Wack, H.; Bruzzano, S.

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Frontpage ()

DE 102010047788 A
German
Patent, Electronic Publication
Fraunhofer UMSICHT Oberhausen ()

Abstract
The system has polymeric hydrogel (4) provided as sorbent. Water discharge of the hydrogel is switched by a change in ambient temperature after reaching and exceeding a temperature shift of the hydrogel in a condensed form, where the temperature shift lies at 25 to 35 degree Celsius. A working stroke of the hydrogel lies between 15 and 50. The hydrogel is immobilized on and/or in a carrier substrate. A textile material (5) or a non-woven fabric or a structured metallic, polymeric or ceramic surface is provided as the carrier substrate. Independent claims are also included for the following: (1) a composite for drinking water extraction by absorption of atmospheric moisture from an environment using a sorbent (2) a method for drinking water extraction by absorption of atmospheric moisture from an environment using a sorbent.

: http://publica.fraunhofer.de/documents/N-214432.html