Latent Heat Thermal Energy Storage System (LHTESS) is effectively used to mitigate the imbalance between the energy stores and requirements. This investigation is on performance enhancement of a triplex-tube LHTESS based on solidification procedure by using innovative Y-shape fins and Nano-Enhanced Phase Change Material (NEPCM). At first, Y-shaped fins are provided to accelerate the solidification procedure in the LHTESS. In this regard, Response Surface Method (RSM) is proposed to optimize the Y-shaped fin configuration. Achieving minimum solidification time is regarded as the goal of optimization process. In a separate analysis, the solidification procedure is accelerated by mixing nanoparticles in pure PCM. Finally, a comparison between both enhancement approaches is performed from the sight of solidification expedition. The solidification procedure is simulated in LHTESS based on Standard Galerkin Finite Element Method (SGFEM). Results represent that fin optimization leads to a reduction of 48.53% in solidification time compared to without fin one.

中文翻译：

---

通过新型翅片和 SWCNT 纳米粒子在三管存储单元中进行相变材料的固化考察

潜热热能存储系统（LHTESS）可有效缓解能量存储与需求之间的不平衡。这项研究的目的是通过使用创新的 Y 形翅片和纳米增强相变材料 (NEPCM) 来增强基于固化程序的三管 LHTESS 的性能。首先，提供Y形翅片以加速LHTESS中的凝固过程。对此，提出了响应面法（RSM）来优化Y形翅片配置。实现最短凝固时间被视为优化过程的目标。在单独的分析中，通过在纯 PCM 中混合纳米颗粒来加速凝固过程。最后从凝固考察的角度对两种增强方法进行了比较。基于标准伽辽金有限元法 (SGFEM) 在 LHTESS 中模拟凝固过程。结果表明，与无翅片优化相比，翅片优化可将凝固时间缩短 48.53%。