Enhancing Phase Change Material (PCM) efficiency through timely melting-solidification cycle interruption

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Proceedings Paper

Enhancing Phase Change Material (PCM) efficiency through timely melting-solidification cycle interruption

Publicated to:Proceedings Of The International Astronautical Congress, Iac. 69-78 - 2024-01-01 (), DOI: 10.52202/078356-0010

Authors: Dubert D; Šeta B; Massons J; Gavaldà J; Bou-Ali MM; Ruiz X; Shevtsova V

Affiliations

Mondragon Unibertsitatea - Author

Mondragon Unibertsitatea; Ikerbasque, Basque Foundation for Science - Author

Technical University of Denmark - Author

Universitat Rovira i Virgili - Author

Abstract

We present a multifaceted study on heat transfer in phase-change materials (PCMs), focusing on both melting and solidification phases, different temperature scenarios, an assessment of practical implementation aspects, and Marangoni convection. This research on n-eicosane complements our previous work [1], which focused on gallium. For both PCMs, the most effective scenario involves switching temperatures between cold and hot walls at a certain moment, which occurs earlier than the full melting time or reaching steady state. This specific moment corresponds to the beginning of a decrease in heat extraction efficiency. The success of this scenario relies on the symmetric thermal boundary conditions and multi-cyclic temperature inversion. We suggest that the implementation of this scenario is similar to rotating the PCM body within its package while maintaining the temperature of the external walls constant. This study also highlights the importance of Marangoni convection in heat transfer mechanisms.

Keywords

Heat transferMarangoniMelting/solidification cycleMicrogravityPhase change material

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Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Proceedings Of The International Astronautical Congress, Iac, Q4 Agency Scopus (SJR), its regional focus and specialization in Aerospace Engineering, give it significant recognition in a specific niche of scientific knowledge at an international level.

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Denmark.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Dubert, Diana Cristina) .

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