Application of actively enhanced solar phase change heat storage system in building heating: A numerical and statistical optimization study

Xinyu Huang, Zemin Liu, Xinyu Gao, Yuan Xie, Jiayi Gao and Xiaohu Yang

Renewable Energy, 2025, vol. 241, issue C

Abstract: Phase change heat storage technology plays a crucial role in enhancing the utilization of solar energy for building heating applications. Nonetheless, the low thermal conductivity of phase change material hinders its widespread implementation. This study presents a novel approach by implementing a phase change heat storage system under rotation conditions to improve heat transfer efficiency. Specifically, the impact of different degrees of rotation center shift on the heat storage process is investigated using a validated numerical model. The research examines the thermal performance of the system under varying rotation center distances (0–300 mm) and speeds (0.1–0.3 rpm) through comprehensive analysis based on statistical and Taguchi methodologies. The findings indicate that adjusting the rotation center shift and increasing the rotation speed enhance forced convection within the unit, thereby accelerating the melting process. For instance, at a rotation speed of 0.2 rpm, the melting time can be reduced by 34.76 % and 5.66 %, while the average heat storage rate can increase by 51.53 % and 5.72 % when the rotation center distance is extended by 300 mm and the rotation speed is increased by 0.2 rpm. Moreover, the Taguchi design analysis reveals that the rotation speed significantly influences the melting time and average heat storage rate, with contributions of 56.68 % and 54.22 % respectively, surpassing the impact of rotation eccentricity.

Keywords: Active rotation; Building heat storage; Combined enhanced heat transfer; Solar fluctuation; Taguchi method (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960148124023966
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:241:y:2025:i:c:s0960148124023966

DOI: 10.1016/j.renene.2024.122328

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().