Heat transfer and acoustics investigation of a piezoelectric fan-porous finned heat sink system in the presence of channel flow

IF 5.4 3区工程技术 Q2 ENERGY & FUELS

Thermal Science and Engineering Progress Pub Date : 2025-07-08 DOI:10.1016/j.tsep.2025.103851

Rutuja Bilaskar, Sripriya Ramamoorthy, Shankar Krishnan

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Abstract

This study presents an experimental investigation into the heat transfer, fluid flow, and acoustic performance of a combined piezoelectric fan–porous fin heat sink system operating in an assistive mode. Experiments are conducted within a custom-designed plane wave duct setup that enables simultaneous thermal and acoustic measurements in a controlled environment. Three heat sink configurations are evaluated to assess heat transfer enhancement and the influence of piezoelectric fan placement. Acoustic metrics are also analyzed, including level gain—representing noise introduced by the piezo fan—and transmission loss across the heat sinks. Results showed maximum heat transfer enhancement due to the piezoelectric fan occurring at lower mean flow velocities for all configurations. Among the designs, the triangular corrugated porous finned heat sink demonstrated a 52.6% increase in Nusselt number compared to a flat plate. In contrast, the rectangular corrugated porous finned heat sink exhibited superior acoustic performance, with lower level gain and higher transmission loss.

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通道流存在下压电风扇-多孔翅片散热系统的传热与声学研究

本研究对在辅助模式下工作的压电风扇-多孔翅片复合散热系统的传热、流体流动和声学性能进行了实验研究。实验在一个定制设计的平面波管道装置中进行，该装置可以在受控环境中同时进行热和声学测量。对三种散热器配置进行了评估，以评估传热增强和压电风扇放置的影响。声学指标也进行了分析，包括电平增益（表示由压电风扇引入的噪声）和通过散热器的传输损耗。结果表明，在较低的平均流速下，压电风扇的传热增强效果最大。在这些设计中，三角形波纹多孔翅片散热器的努塞尔数比平板散热器增加了52.6%。相比之下，矩形波纹多孔翅片散热片具有较低的声级增益和较高的传输损耗。

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来源期刊

Thermal Science and Engineering Progress Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

7.20

自引率

10.40%

发文量

327

审稿时长

41 days

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