Comparative analysis of performance enhancement methods in shell-and-tube latent heat storage systems: Expanded graphite and topologically optimized fins

Xueming Yang

doi:10.1016/j.applthermaleng.2026.130688

Comparative analysis of performance enhancement methods in shell-and-tube latent heat storage systems: Expanded graphite and topologically optimized fins

2026-03-20

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Xueming Yang *

J

Jianzhi Chen

H

Hao Zhang

J

Jie Cui *

J

Jianfei Xie

DOI：10.1016/j.applthermaleng.2026.130688

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Abstract

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• EG markedly improves thermal uniformity and melting of erythritol in STLHTES system. • Dual-objective optimized fins reduce complete charging time by up to 21.91%. • Adding 10 wt% EG increases the energy storage rate by 59.97% in STLHTES system. • CPCM method outperforms optimized fin structure in charge and discharge performance.

Keywords:

Expanded graphite

Topologically optimized fins

Thermal uniformity

Latent heat storage

Phase change materials

Comparative analysis of performance enhancement methods in shell-and-tube latent heat storage systems: Expanded graphite and topologically optimized fins

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