Heat transfer of sub-merged jet impingement on pin-fin heat sinks with silver nanofluid - 文章详情页

作者：

Xia, Guodong (Xia, Guodong.) (学者：夏国栋) | Zhou, Mingzheng (Zhou, Mingzheng.) | Zhou, Lijun (Zhou, Lijun.) | Cui, Zhenzhen (Cui, Zhenzhen.) | Yang, Ruibo (Yang, Ruibo.)

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摘要：

Silver-water　nanofluid,　used　as　the　working　fluid　in　this　study,　was　prepared　in　one　step　employing　ultrasound-assisted　membrane　reaction.　The　heat　transfer　of　submerged　jet　impacting　pin-fin　heat　sinks　was　investigated　experimentally　with　silver　nanofluid　of　different　concentrations.　The　results　indicate　that　the　silver　nanoparticles　prepared　are　uniformly　distributed　in　base　fluid　and　with　an　average　grain　size　of　4.8　nm.　The　surfactant　used　in　this　study　has　great　influence　on　the　viscosity　of　nanofluids.　Compared　with　the　base　fluid　(water　and　surfactant),　the　heat　transfer　coefficient　of　nanofluids　is　increased　by　6.23%,　9.24%　and　17.53%,　respectively,　with　the　silver　nanoparticle　mass　fraction　of　0.02%,　0.08%　and　0.12%,　under　the　same　jet　velocity.　Compared　with　water,　the　heat　transfer　coefficient　is　enhanced　by　6.61%　with　the　silver　nanoparticle　of　0.12%.

关键词：

Fins (heat exchange) Silver nanoparticles Heat transfer coefficients Metal nanoparticles Surface active agents Nanofluidics

作者机构：

[ 1 ] [Xia, Guodong]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhou, Mingzheng]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhou, Lijun]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Cui, Zhenzhen]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Yang, Ruibo]Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

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电子邮件地址：

xgd@bjut.edu.cn

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