Xylitol Used as Phase Change Material: Nucleation Mechanisms of the Supercooling Rupture By Stirring

DOI

10.2991/ahe.k.220301.004How to use a DOI?

Keywords

Thermal energy storage; Phase Change Material; Sugar Alcohols; Crystallization activation; Bubbling; Nucleation

Abstract

Owing to its high energy density, Xylitol is a very promising Phase Change Material (PCM) for low temperature applications (< 100°C). However, it presents a high and persistent supercooling that inhibits the latent heat restitution during thermal discharges. Bubbling in the supercooled PCM is known as an efficient way to trigger Xylitol crystallization. This paper proposes an experimental investigation leading to a new description of the nucleation mechanisms behind this triggering technique based on secondary nucleation. Adding a seeding step to the crystallization process is also proposed to increase the efficiency and reproducibility of the heat restitution.

Copyright

© 2022 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - L. Piquard
AU  - E. Gagnière
AU  - G. Largiller
AU  - D. Mangin
AU  - F. Bentivoglio
PY  - 2022
DA  - 2022/03/03
TI  - Xylitol Used as Phase Change Material: Nucleation Mechanisms of the Supercooling Rupture By Stirring
BT  - Proceedings of the International Renewable Energy Storage Conference 2021 (IRES 2021)
PB  - Atlantis Press
SP  - 28
EP  - 35
SN  - 2589-4943
UR  - https://doi.org/10.2991/ahe.k.220301.004
DO  - 10.2991/ahe.k.220301.004
ID  - Piquard2022
ER  -