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Characterization of an N-octadecane PCS in a 0.5 m3 storage tank test facility

 
: Biedenbach, M.; Poetzsch, L.; Gschwander, S.

:

International Institute of Refrigeration -IIR-; International Institute of Refrigeration -IIR-, Commission Thermodynamics and Transfer Processes, Paris; International Institute of Refrigeration -IIR-, Commission Refrigerating Equipment, Paris; International Institute of Refrigeration -IIR-, Commission Refrigerated Storage, Paris:
12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning 2018 : Orford, Canada, May 21-23, 2018, CD-ROM
Paris: IIR, 2018 (Science et technique du froid 2018, 2)
ISBN: 978-2-36215-025-8
pp.357-364
Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM) <12, 2018, Orford>
English
Conference Paper
Fraunhofer ISE ()

Abstract
Due to the increasing share of regenerative energy, research into thermal storage systems is becoming increasingly important. Phase change slurries (PCS) can be used as a thermal storage system and consist of a phase change material (PCM) within a carrier fluid. This enables the pumping of the PCS in a hydraulic system independently of the state of matter of the PCM. In this contribution a PCS with 35 wt.% Parafol 18-97 (Sasol Germany, n-octadecane, Tm = 27.3 °C) as a PCM was characterized under realistic thermomechanical stress in a storage tank test facility at a scale of 0.5 m3. At a temperature difference of 7 K (20 °C â 27 °C) it was possible to store 2.57 times more heat in the PCS in comparison to water. Furthermore, the influence of PCS on the energy demand of a pump was investigated.

: http://publica.fraunhofer.de/documents/N-520766.html