2D numerical analysis of energy harvesting in oscillating heat pipe using piezoelectric transducers
2D numerical analysis of energy harvesting in oscillating heat pipe using piezoelectric transducers
复制标题
使用压电换能器在振荡热管中收集能量的二维数值分析
DOI：
10.1117/12.2259855
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Monroe, John G.
中科院分区：
文献类型：
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作者：
Meyendorf, Norbert G.;Vaidya, Sajiree;Myers, Oliver;Thompson, Scott;Shamsaei, Nima;Monroe, John G.
能量收集是一个强大的过程，涉及探索将分散在环境中的能量转化为更有用的能量形式（主要是电能）的不同可能方法。压电材料以其将机械能转换成电能或反之亦然的能力而闻名。我们的工作利用压电材料的特性，在振荡热管中将热能转换为电能。对振荡热管的具体兴趣与适合于远程电子操作的低功率发电的能量收集以及电子封装的低功率热回收有关。本文的目的是开发一个二维多物理场设计分析模型，有助于预测振荡热管固有的发电。实验设计显示了一个压电片与固定的配置，连接在振荡热管和它的行为时，受到振荡流体压力进行了观察。使用多物理场有限元分析软件对描述类似行为的模型进行了数值分析。该数值模型由三向物理相互作用组成，考虑了流体流动、固体力学和采集器电路的电气响应。
Energy Harvesting is a powerful process that deals with exploring different possible ways of converting energy dispersed in the environment into more useful form of energy, essentially electrical energy. Piezoelectric materials are known for their ability of transferring mechanical energy into electrical energy or vice versa. Our work takes advantage of piezoelectric material’s properties to covert thermal energy into electrical energy in an oscillating heat pipe. Specific interest in an oscillating heat pipe has relevance to energy harvesting for low power generation suitable for remote electronics operation as well as low-power heat reclamation for electronic packaging. The aim of this paper is develop a 2D multi-physics design analysis model that aids in predicting electrical power generation inherent to an oscillating heat pipe. The experimental design shows a piezoelectric patch with fixed configuration, attached inside an oscillating heat pipe and its behavior when subjected to the oscillating fluid pressure was observed. Numerical analysis of the model depicting the similar behavior was done using a multiphysics FEA software. The numerical model consists of a threeway physics interaction that takes into account fluid flow, solid mechanics, and electrical response of the harvester circuit.