doi: 10.3850/978-981-08-7614-2_IMPRES008


Adsorbent Coatings for Heat Pumping Applications: Verification of Hydrothermal and Mechanical Stabilities


Angelo Freni1,a, Andrea Frazzica1, Belal Dawoud2, Stefanie Chmielewski2 and Lucio Bonaccorsi3

1CNR – Istituto di Tecnologie Avanzate per l’Energia “Nicola Giordano”, Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy.

angelo.freni@itae.cnr.it

2Viessmann Allendorf Werke GmbH, 35107 Allendorf (Eder), Germany

3Department of Industrial Chemistry and Materials Engineering, Faculty of Engineering, University of Messina, Salita Sperone 31, I-98166 Messina, Italy

ABSTRACT

This paper presents novel experimental methods for verification of both hydrothermal and mechanical stabilities of adsorbent coatings. Experiments have been carried out on zeolite-based coatings over aluminium substrates, prepared by a dip-coating technique. Hydrothermal aging of several adsorbent coatings is ongoing. Adsorption and structural stability of some samples under test was successfully verified after 5000 aging cycles by isobars measurement and XRD analysis. Mechanical properties of coatings have been evaluated by applying different typologies of static and dynamic mechanical stresses.

Keywords: Adsorption heat pump, Adsorbent coating, Hydrothermal stability, Mechanical stability.


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