Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

A new adsorbent composite material based on metal fiber technology and its application in adsorption heat exchangers

: Wittstadt, U.; Füldner, G.; Andersen, O.; Herrmann, R.; Schmidt, F.

Volltext urn:nbn:de:0011-n-3586288 (843 KByte PDF)
MD5 Fingerprint: 0ac8c81e3b2b166271c6a8181a36dde6
(CC) by
Erstellt am: 2.7.2019

Energies 8 (2015), Nr.8, S.8431-8446
ISSN: 1996-1073
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer ISE ()
Fraunhofer IFAMDD ()
Thermische Anlagen und Gebäudetechnik; Energieeffiziente Gebäude; Elektrische und thermische Wärmepumpen; heat exchanger; kinetics; SAPO-34; support transformation

In order to achieve process intensification for adsorption chillers and heat pumps, a new composite material was developed based on sintered aluminum fibers from a melt-extraction process and a dense layer of silico-aluminophosphate (SAPO-34) on the fiber surfaces. The SAPO-34 layer was obtained through a partial support transformation (PST) process. Preparation of a composite sample is described and its characteristic pore size distribution and heat conductivity are presented. Water adsorption data obtained under conditions of a large pressure jump are given. In the next step, preparation of the composite was scaled up to larger samples which were fixed on a small adsorption heat exchanger. Adsorption measurements on this heat exchanger element that confirm the achieved process intensification are presented. The specific cooling power for the adsorption step per volume of composite is found to exceed 500 kW/m3 under specified conditions.