Experimental study on the thermal performance of straight and oblique finned, polymer heat sinks

Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020 Pub Date : 2020-12-11 DOI:10.14264/ee77585

Kalen Timbs, Mehdi Khatamifar, Wenxian Lin, E. Antunes

{"title":"Experimental study on the thermal performance of straight and oblique finned, polymer heat sinks","authors":"Kalen Timbs, Mehdi Khatamifar, Wenxian Lin, E. Antunes","doi":"10.14264/ee77585","DOIUrl":null,"url":null,"abstract":"Heat sink can effectively dissipate heat in a range of thermal applications for improved performance and reliability. Thermally conductive polymer composites show great promise in solving the overheating issue in electronic devices. This experimental study investigates the thermal performance and the ﬂow characteristics of straight and oblique ﬁnned heat sinks made of thermally conductive polymer composites under forced convection conditions over 7 . 45 × 10 4 ≤ Re ≤ 3 . 60 × 10 5 , where Re is the Reynolds number. The heat sinks used were 3D printed using Ice9 Flex (carbon ﬁlled polymer, from TCPoly), copper ﬁlled ﬁlament (polylactic acid with 80% copper particles) and bronze ﬁlled ﬁlament (polylactic acid with 80% bronze parti-cles), respectively. Oblique ﬁns were found to effectively reduce the thermal resistance of heat sinks, increase the convec-tive heat transfer and the inner-ﬁn velocity which results in lower pressure drop, in comparison to straight ﬁnned heat sinks. The carbon-ﬁlled polymer (Ice9 Flex) was shown to have much superior thermal dissipation characteristics compared to metal ﬁlled ﬁlaments.","PeriodicalId":369158,"journal":{"name":"Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14264/ee77585","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

Abstract

Heat sink can effectively dissipate heat in a range of thermal applications for improved performance and reliability. Thermally conductive polymer composites show great promise in solving the overheating issue in electronic devices. This experimental study investigates the thermal performance and the ﬂow characteristics of straight and oblique ﬁnned heat sinks made of thermally conductive polymer composites under forced convection conditions over 7 . 45 × 10 4 ≤ Re ≤ 3 . 60 × 10 5 , where Re is the Reynolds number. The heat sinks used were 3D printed using Ice9 Flex (carbon ﬁlled polymer, from TCPoly), copper ﬁlled ﬁlament (polylactic acid with 80% copper particles) and bronze ﬁlled ﬁlament (polylactic acid with 80% bronze parti-cles), respectively. Oblique ﬁns were found to effectively reduce the thermal resistance of heat sinks, increase the convec-tive heat transfer and the inner-ﬁn velocity which results in lower pressure drop, in comparison to straight ﬁnned heat sinks. The carbon-ﬁlled polymer (Ice9 Flex) was shown to have much superior thermal dissipation characteristics compared to metal ﬁlled ﬁlaments.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

直翅片和斜翅片聚合物散热器热性能的实验研究

散热器可以有效地散热在一系列热应用，以提高性能和可靠性。导热聚合物复合材料在解决电子器件的过热问题方面显示出巨大的希望。实验研究了导热聚合物复合材料直翅片和斜翅片散热器在7℃以上强制对流条件下的热性能和流动特性。45 × 10 4≤Re≤3。60 × 10 5, Re为雷诺数。所使用的散热器分别使用Ice9 Flex(来自TCPoly的碳填充聚合物)，铜填充长丝(含有80%铜颗粒的聚乳酸)和青铜填充长丝(含有80%青铜颗粒的聚乳酸)进行3D打印。与直翅片散热器相比，斜翅片可以有效降低散热器的热阻，增加对流换热和内翅片速度，从而降低压降。与金属填充长丝相比，碳填充聚合物(Ice9 Flex)具有更优越的散热特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Proceedings of the 22nd Australasian Fluid Mechanics Conference AFMC2020

自引率

0.00%

发文量