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首页> 外文期刊>International Journal of Heat and Mass Transfer >Effects of surfactant and nanofluid on the performance and optimization of a microchannel heat sink
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Effects of surfactant and nanofluid on the performance and optimization of a microchannel heat sink

机译：表面活性剂和纳米流体对微通道散热器性能和优化的影响

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摘要

This paper reports the influence of surfactant Triton X-100 on boron nitride nanotubes (BNNTs) nanofluid in non-optimized and optimized microchannel heat sink (MCHS) at 30 °C and 50 °C. The MCHS performance was evaluated in terms of thermal resistance and pressure drop, utilizing experimental thermo-physical properties of distilled water, a mixture of distilled water and surfactant Triton X-100 as base fluid, and nanofluid BNNTs at weight concentration of 0.001% into MCHS models which was further optimized with the Multiple Objective Particle Swarm Optimization (MOPSO) technique. It is found that the surfactant at 30 °C improves the MCHS thermal capabilities without nanotubes by 0.8% even after optimizing the MCHS according to the fluid properties. Conversely, surfactant Triton X-100 reduces pressure drop greatly with any change in thermal resistance at 50 °C and paired cooperatively with BNNTs nanofluid 0.001 wt.% - mitigating pressure drop increment caused by the nanofluid resulting an overall performance improvement by 1.25% and 1.97% for thermal resistance and pressure drop respectively in MCHS systems and reduced to 1.3% and 3.2% after optimization. Optimized MCHS dimensions given by MOPSO could be manufactured and additionally gave wider solutions for large reduction of pressure drop up to 80% for economic MCHS with a drawback of higher thermal resistance.
机译：本文报道了在30℃和50℃下在非优化和优化的微通道散热器（MCH）中的氮化硼纳米管（BNNT）纳米管（BNNTS）纳米管中的表面活性剂Triton X-100的影响。在热阻和压降方面评估MCHS性能，利用蒸馏水的实验热物理性质，蒸馏水和表面活性剂X-100作为基础流体的混合物，重量浓度为0.001％的纳米流体BNNTS进入MCH通过多目标粒子群优化（MOPSO）技术进一步优化的模型。发现30℃的表面活性剂在根据流体性质优化MCH之后，甚至在优化MCH的情况下，表面活性剂在没有纳米管的情况下通过纳米管改善0.8％。相反，表面活性剂Triton X-100随着50℃的热阻的任何变化而大大降低了压降，并与BNNTS纳米流体合作，纳米流体引起的％缓解压降增量，导致总体性能提高1.25％和1.97优化后，分别在MCHS系统中的热阻和压降％降至1.3％和3.2％。可以制造MOPSO给出的优化MCHS尺寸，并另外给予更广泛的解决方案，用于对经济MCH的大大降低高达80％，具有较高的热阻。

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