Additive manufacturing of a topology-optimised multi-tube energy storage device: Experimental tests and numerical analysis
Additive manufacturing of a topology-optimised multi-tube energy storage device: Experimental tests and numerical analysis
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DOI：
10.1016/j.applthermaleng.2020.115878
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发表时间：
2020-11
影响因子：
6.4
通讯作者：
Ruihuan Ge;G. Humbert;R. Martínez;Moataz M. Attallah;A. Sciacovelli
中科院分区：
文献类型：
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作者：
Ruihuan Ge;G. Humbert;R. Martínez;Moataz M. Attallah;A. Sciacovelli
具有相变材料（PCM）的潜热热能储存（LHTES）系统由于其高的能量储存密度和过程的等温性质而通常用于储存热能。然而，它们的性能受到PCM低热导率的限制。为了提高传热性能，在这项研究中，我们调查的性能与拓扑优化翅片的管壳式储能装置。提出了选择性激光熔化（SLM）增材制造技术来制造用于固化过程的拓扑优化的能量存储装置。进行了一系列考虑不同相变材料和传热流体（HTF）入口温度的实验。通过计算流体动力学（CFD）的相变数值模拟的热性能进行评估和比较与传统的方形翅片设计。结果表明，通过使用拓扑优化的翅片，完全凝固时间显著缩短。这项工作表明，拓扑优化方法和增材制造技术的结合为改善LHTES系统的传热性能提供了一种有前途的方法。
Latent heat thermal energy storage (LHTES) systems with phase change materials (PCMs) are commonly used for storing thermal energy due to their high energy storage density and isothermal nature of the process. However, their performance is limited by PCMs low thermal conductivity. To enhance the heat transfer properties, in this study we investigate the performance of a shell-and-tube energy storage device with topology optimised fins. Selective laser melting (SLM) additive manufacturing technology is proposed to fabricate the topology optimised energy storage device for the solidification process. A series of experiments considering different PCMs and heat transfer fluid (HTF) inlet temperatures are conducted. The thermal performance is assessed and compared with that of a conventional square fin design through numerical simulations of phase changes by computational fluid dynamics (CFD). The results show that the complete solidification time is significantly shortened by using the topology optimised fins. This work demonstrates that the combination of topology optimisation method and additive manufacturing technology offers a promising way to improve the heat transfer performances of LHTES systems.