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首页> 外文期刊>Heat Transfer Research >EXPERIMENTAL AND NUMERICAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT IN A PLATE HEAT EXCHANGER USING A FLY ASH NANOFLUID
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EXPERIMENTAL AND NUMERICAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT IN A PLATE HEAT EXCHANGER USING A FLY ASH NANOFLUID

机译：用粉煤灰纳米流体在板式换热器中传热增强的实验性和数值研究

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摘要

High-efficiency plate heat exchangers are widely used in many industries. Nanofluids can be used as working fluids in heat exchangers to improve the heat transfer rate. In this study, the effects of using a fly ash nanofluid in a plate heat exchanger were analyzed experimentally and numerically. ANSYS FLUENT software was used to simulate heat transfer characteristics in a plate heat exchanger. Fly ash nanoparticles with average sizes of 14 nm were used for making the nanofluid. The prepared nanofluid had nanoparticles of content 2% (wt./wt.). The experiments were carried out in various working conditions with changes in fluid mass flow rate and temperature. The obtained experimental results showed that using the fly ash nanofluid enhanced the overall heat transfer coefficient between 6-20%. Moreover, theoretical and experimental results are in good agreement with each other.
机译：高效板换热器广泛应用于许多行业。 纳米流体可用作热交换器中的工作流体，以提高传热速率。 在这项研究中，通过实验和数值分析使用粉煤灰纳米流体的效果。 ANSYS流畅的软件用于模拟板式热交换器中的传热特性。 使用平均尺寸为14nm的飞灰纳米粒子用于制备纳米流体。 制备的纳米流体具有纳米颗粒的含量2％（wt./wt。）。 在各种工作条件下进行实验，随着流体质量流量和温度的变化。 所获得的实验结果表明，使用粉煤灰纳米流体增强了6-20％的总传热系数。 此外，理论和实验结果彼此吻合良好。

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