在使用纳米增强相变材料的波形梯形热能存储系统内磁混合对流
Aissa Abderrahmane1, Obai Younis2, Sameh E Ahmed3
1LPQ3M, University of Mascara, Mascara, Algeria.
Scientific reports
|November 28, 2024
概括
这项研究研究了使用纳米封装相变材料在波形梯形外中的热传递. 降低波浪般的底面平面.
科学领域:
- 热力学是一种热力学.
- 流体力学 流体力学 流体力学
- 热传递热量转移的方法
背景情况:
- 研究复杂几何形状的热传递对于能源效率至关重要.
- 磁动力学 (MHD) 和混合对流在各种工业应用中发挥着重要作用.
- 换相材料 (PCM) 提供了增强的热能储能能力.
研究的目的:
- 为了分析三维 (3D) MHD混合对流在波形梯形外中.
- 评估纳米封装相变材料 (NePCM) 对传热的影响.
- 为了比较热传递 (HT) 和流体摩擦 (FF) 的不可逆性.
主要方法:
- 使用加勒金有限元法 (GFEM) 解决治理方程.
- 采用透度-透度方法来建模充电过程.
- 研究了NePCM与聚氨外,nonadecane核心和水基液体.
主要成果:
- 在较低的雷诺兹 (Re) 和高的哈特曼 (Ha) 数值下,融化行为显示出抛物线曲线.
- 减少波动基的波动数,提高了传热速率.
- 增加的Ha和波浪数 (N) 导致了平均Nusselt数的减少.
结论:
- 优化体几何和操作参数是有效传热的关键.
- 在MHD混合对流系统中,NePCM显著影响热性能.
- 该研究为优化复杂系统中的热管理提供了见解.
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