Constructal design of latent thermal energy storage with vertical spiral heaters
Constructal design of latent thermal energy storage with vertical spiral heaters
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DOI：
10.1016/j.ijheatmasstransfer.2014.09.077
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发表时间：
2015-02
影响因子：
5.2
通讯作者：
S. Lorente;A. Bejan;J. Niu
中科院分区：
文献类型：
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作者：
S. Lorente;A. Bejan;J. Niu
本文报道了一种相变材料在圆柱形储罐中熔化的随时间变化的能量储存的数值和分析研究。在研究的第一部分中，加热器是一个垂直的螺旋管，与水箱同轴放置。在第二部分中，加热器由与圆柱体位于同一轴上的两个同轴螺旋组成。根据建筑设计的理念，热流配置被赋予了自由度，以便在固定数量的加热材料下实现更好的整体性能。本文记录了螺旋直径和螺距等几何特征对整体性能的影响。
This paper reports a numerical and analytical study of time dependent storage of energy by melting a phase change material in a cylindrical tank. In the first part of the study the heater was a vertical spiral tube positioned coaxially with the tank. In the second part, the heater consisted of two coaxial spirals positioned on the same axis as the cylinder. In accord with the philosophy of constructal design, the heat and fluid flow configuration was endowed with degrees of freedom in order to morph toward better overall performance for a fixed amount of heating material. The paper documents the effect of the geometrical features such as helix diameter and pitch on the overall performance.