A comparison of radial-flow and axial-flow packed beds for thermal energy storage

A comparison of radial-flow and axial-flow packed beds for thermal energy storage
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径流式和轴流式填充床热能储存的比较

DOI:
10.1016/j.apenergy.2017.08.179
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发表时间:
2018
期刊:
影响因子:
11.2
通讯作者:
McTigue J
McTigue J
中科院分区:
工程技术1区
文献类型:
--
作者:
McTigue J

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充填层热储层是许多电能存储技术中不可或缺的组成部分。本文集中研究了传热流体沿径向坐标运动的填料床。讨论了控制能量方程和引起火能损失的各种机制。将径向流填料床与尺寸相似的轴流填料床进行了比较。这种方法提供了对两种设计的潜在行为的公平评估。多目标优化允许考虑广泛的设计变量,并用于比较最优的径向流和轴向流存储。轴流存储被分割成层也被考虑。结果表明,径向流存储具有类似的热力学性能,但旁通流所需的额外体积导致更高的资本成本。
Packed-bed thermal reservoirs are an integral component in a number of electrical energy storage technologies. The present paper concentrates on packed beds where the heat transfer fluid travels along the radial co-ordinate. The governing energy equations and various mechanisms that cause exergetic losses are discussed. The radial-flow packed bed is compared to a dimensionally similar axial-flow packed bed. This approach provides a fair assessment of the underlying behaviour of the two designs. Multi-objective optimisation allows a wide range of design variables to be considered, and is employed to compare optimal radial-flow and axial-flow stores. Axial-flow stores that have been segmented into layers are also considered. The results indicate that radial-flow stores have a comparable thermodynamic performance, but that the additional volume required for by-pass flows leads to higher capital costs.
DOI: --
发表时间: 2013
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作者:
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DOI: 10.1049/iet-rpg.2016.0031
发表时间: 2016
影响因子: 2.6
作者:
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通讯作者: Alexander J. White
DOI: 10.1177/0957650916668447
发表时间: 2016-09
期刊: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
影响因子: --
作者:
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