Topology optimization for mass transfer enhancement in open thermochemical energy storage reactors
Topology optimization for mass transfer enhancement in open thermochemical energy storage reactors
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DOI：
10.1016/j.est.2023.107132
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发表时间：
2023
影响因子：
9.4
通讯作者：
G. Humbert;A. Sciacovelli
中科院分区：
文献类型：
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作者：
G. Humbert;A. Sciacovelli
本文通过优化设计流道几何形状，实现了开放系统热化学储能的传质增强。这种流道几何形状的目的是最大化气体反应物如何分布到反应部位，并从拓扑优化算法中得到。分析了筛式反应器和圆柱形反应器两种反应器结构，并与文献基准进行了性能比较。触角状流道几何形状出现，流道在反应层中拉长，没有直接连接入口和出口界面。在固定时间的情况下，与文献解决方案相比，放电能量增加了+ 757.8%。此外，根据目标性能度量，最佳几何特征也会有所不同。特别地，发现较薄的通道有利于增加与释放能量相比的释放的火用量。总的来说，新兴的设计趋势为开放系统热化学储能反应堆的性能改进定义了新的增强途径，并对技术进步做出了重大贡献。
The mass transfer enhancement in open system thermochemical energy storage is achieved in this work through the optimal design of flow channel geometries. Such flow channel geometries aim to maximize how gas reactants are distributed to the reactive sites and are derived from the topology optimization algorithm. Two reactor configurations are analyzed, namely sieve reactors and cylindrical reactors, and the performance of the generated designs are compared with literature benchmarks. Tentacular flow channel geometries emerged, with the flow channels elongating in the reactive bed without directly connecting the inlet and outlet interfaces. In the instance of a fixed time, a +757.8 % increase in the amount of discharged energy is obtained compared to literature solutions. Besides, the optimal geometrical features differ depending on the targeted performance metric. In particular, thinner channels are found to be favourable to increasing the amount of discharged exergy compared to discharged energy. Overall, the emerging design trends define new enhancement pathways for the performance improvement of open system thermochemical energy storage reactors and significantly contribute to the technology advancement.