Buch: Adsorptive Coatings based on Siloxane Binders for Heat Transformation Applications
Adsorptive Coatings based on Siloxane Binders for Heat Transformation Applications
Solare Energie- und Systemforschung / Solar Energy and Systems Research
Harry Kummer
Hrsg.: Fraunhofer ISE, Freiburg/Brsg.
2020, 138 S., num., mostly col. illus. and tab., Softcover
Sprache: Englisch
Leipzig, Univ., Diss., 2019
Fraunhofer Verlag
ISBN 978-3-8396-1643-7

The usage of waste or low exergy heat as driving force for adsorption processes delivers an energy efficient way for heating and cooling. Adsorptive coatings are one possibility to enhance the heat transfer and improve the specific heating or cooling power (SCP/SHP). This work presents coatings based on a poly-dimethyl-diphenyl-siloxane (PDMDPS) binder, with a variation of different adsorbents from the group of metal-organic frameworks (Al-FUM, CAU-10-H, HKUST-1, MIL101-(Cr)), zeolites (Na-Y) and related microporous materials (SAPO-34, TiAPSO) for adsorption of water and methanol on 2D-substrates (plates and fins of a full scale tube-fin heat exchanger (HX)). Equilibrium adsorption loading X(tief)coat(p,T), coating thickness and density (d(tief)coat, (tief)coat), adsorption dynamic (t(tief)cycle) and influence through long term hydrothermal cycles are investigated as coating properties. A deeper understanding and more precise prediction of the adsorption process will be possible based on the acquired results, regarding efficiency (COP), storage density and power/power density (SCP/SHP, VSCP/VSHP).

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