Numerical analysis of thermoacoustic heat pump driving by prime mover

IF 1.7 4区工程技术 Q3 THERMODYNAMICS Heat Transfer Research Pub Date : 2024-09-01 DOI:10.1615/heattransres.2024053033

Dongwei Zhang, Jian Guan, Zhuantao He, Chao Shen, Hongxin Li, Songzhen Tang, Lin Wang, Yonggang Lei

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Abstract

In this work, based on the compressible SIMPLE algorithm, a calculation model of the combined thermoacoustic engine was established. The results presented the changes in thermoacoustic engine evolution process before and after adding the refrigerator part. Subsequently, the flow field in the oscillation period of the thermoacoustic engine-driven refrigerators was analyzed, and it was found that during the flow velocity transformation, the velocity interface was formed near the middle position of the resonant tube. Additionally, the performance optimization of the thermoacoustic engine-driven refrigerator was studied. It can be found that the added refrigerator part will increase the start-up temperature difference by more than 25 K, as well as decreasing the vibration amplitude at stable stage. The temperature difference between the two ends of the refrigerator part increases with the addition of the temperature difference of the engine. This work provides a useful reference for the application of thermoacoustic engine to drive the same type of refrigerator.

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原动机驱动热声热泵的数值分析

在这项工作中，基于可压缩 SIMPLE 算法，建立了组合式热声发动机的计算模型。结果表明了热声发动机在加入冰箱部分前后的演变过程。随后，分析了热声发动机驱动冰箱振荡期的流场，发现在流速转换过程中，在谐振管中间位置附近形成了速度界面。此外，还对热声发动机驱动冰箱的性能优化进行了研究。研究发现，增加制冷机部分会使启动温差增加 25 K 以上，并降低稳定阶段的振幅。制冷部分两端的温差随着发动机温差的增加而增大。这项工作为应用热声发动机驱动同类型冰箱提供了有益的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Heat Transfer Research 工程技术-热力学

CiteScore

3.10

自引率

23.50%

发文量

102

审稿时长

13.2 months

期刊介绍： Heat Transfer Research (ISSN1064-2285) presents archived theoretical, applied, and experimental papers selected globally. Selected papers from technical conference proceedings and academic laboratory reports are also published. Papers are selected and reviewed by a group of expert associate editors, guided by a distinguished advisory board, and represent the best of current work in the field. Heat Transfer Research is published under an exclusive license to Begell House, Inc., in full compliance with the International Copyright Convention. Subjects covered in Heat Transfer Research encompass the entire field of heat transfer and relevant areas of fluid dynamics, including conduction, convection and radiation, phase change phenomena including boiling and solidification, heat exchanger design and testing, heat transfer in nuclear reactors, mass transfer, geothermal heat recovery, multi-scale heat transfer, heat and mass transfer in alternative energy systems, and thermophysical properties of materials.