Gas-to-gas heat exchanger design for high performance thermal energy storage
Gas-to-gas heat exchanger design for high performance thermal energy storage
复制标题
用于高性能热能存储的气-气热交换器设计
DOI：
10.1016/j.est.2017.03.004
复制
发表时间：
2017
影响因子：
9.4
通讯作者：
Cárdenas B
中科院分区：
文献类型：
--
作者：
Cárdenas B
提出了具有非恒定横截面积的气-气换热器的数学建模和优化。所分析的热交换器横截面积的设计基于六角形网格，以传统方式制造该网格非常不切实际，但通过现代制造技术可以相对容易地构建。所提出的几何构造允许获得高火用效率并显着降低成本（以每单位火用转移的体积来衡量）。在整个研究中，彻底解释了热交换器的整体火用效率与其成本之间存在的关系。模型获得的结果表明，如果抛开传统制造方法的限制，由于所需材料体积小，可以实现高火用效率且非常便宜的热交换器设计。此外，该研究揭示了一个非常重要的事实：热交换器中材料的体积与其特征尺寸成二次比例增加，这意味着扩大几何形状对其成本效益有很大影响。
The mathematical modelling and optimization of a gas-to-gas heat exchanger with a non-constant cross sectional area is presented. The design of the cross sectional area of the heat exchanger analyzed is based on an hexagonal mesh, which would be highly impractical to fabricate in a conventional way but could be built relatively easily through modern manufacturing techniques. The geometric configuration proposed allows attaining a high exergy efficiency and a significant cost reduction, measured in terms of volume per unit of exergy transfer. The relationship that exists between the overall exergy efficiency of the heat exchanger and its cost is thoroughly explained throughout the study.The results obtained from the modelling demonstrate the premise that it is possible to realize designs for heat exchangers that are highly exergy-efficient and very cheap, owing to the small volume of material required, if the constrains imposed by the limitations of traditional manufacturing methods are set aside. Furthermore, the study reveals a very important fact: the volume of material in a heat exchanger increases in quadratic proportion to its characteristic dimension, which implies that scaling up the geometry has a strong impact on its cost-effectiveness.
管道强度和壁厚
DOI：
10.1016/b978-0-12-383867-4.00007-4
发表时间：
2011
影响因子：
2
作者：
E. S. Menon
通讯作者：
E. S. Menon