| Issue |
E3S Web Conf.
Volume 654, 2025
Energy and Sustainability Conference (ESC2025)
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 8 | |
| Section | Renewable Energies and Advanced Technologies | |
| DOI | https://doi.org/10.1051/e3sconf/202565402002 | |
| Published online | 21 October 2025 | |
Modeling of an optimized, PCM-based, thermal energy storage heat exchanger: Preliminary results
DIME, Università degli Studi di Genova, via Montallegro 1, I-16145, Genova, Italy
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
This paper investigates the thermal behavior of a PCM-based thermal storage heat exchanger, consisting of a series of vertical cavities filled with PCM and heated/cooled on their vertical sides. A simple theoretical model, based on a lumped parameter analysis, was developed and validated through experiments conducted on a test section that reproduces a scaled cavity forming the heat exchanger. The modeling aimed to identify an optimization strategy for the device; it was found that a more efficient natural circulation of the molten PCM, achieved by introducing horizontal partitions inside the cavity, resulted in a significant reduction in charging time, i.e., the time required for the complete melting of the solid phase.
© The Authors, published by EDP Sciences, 2025
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