Wedge-shaped fins to enhance thermal performance of shell and tube heat exchangers containing phase change material: An experimental study

被引：7

作者：

Safari, Vahid ^{[1
]}

Kamkari, Babak ^{[2
]}

Gharbi, Amir ^{[3
]}

机构：

[1] Carlos III Univ Madrid, Dept Thermal & Fluids Engn, Madrid, Spain

[2] Ulster Univ, Sch Engn, Belfast BT15 1AP, North Ireland

[3] Islamic Azad Univ, Dept Mech Engn, Shahre Rey Branch, Tehran, Iran

来源：

THERMAL SCIENCE AND ENGINEERING PROGRESS | 2024年 / 49卷

关键词：

Latent heat storage (LHS); Phase change materials (PCM); Heat exchanger (HX); Heat transfer; Wedge fins; Annular fins;

D O I：

10.1016/j.tsep.2024.102474

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study addresses restricted thermal conductivity in phase change materials (PCMs) used in latent heat storage (LHS) systems, aiming to enhance heat transfer efficiency by intensifying convective flow using a novel wedge fin design. A comparative experimental analysis is performed between wedge-finned and annular-finned tube heat exchangers (HXs), assuming equal fin material. Results show that the wedge-finned tube HX achieves higher Nusselt numbers, improved heat distribution, and a remarkable 12.8% reduction in melting time compared to the annular-finned HX at a heat transfer fluid (HTF) temperature of 90celcius. Furthermore, the wedge-finned tube HX exhibits a substantial 84.3% decrease in melting time compared to the bare tube HX. These findings highlight the practical significance of employing wedge fin design for improving heat transfer efficiency in LHS systems, offering valuable insights for the design and optimization of such systems.

引用

页数：10

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