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首页> 外文期刊>Heat Transfer Engineering >Numerical Simulations of Fluid Flow and Heat Transfer through Aluminum and Copper Metal Foam Heat Exchanger - A Comparative Study
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Numerical Simulations of Fluid Flow and Heat Transfer through Aluminum and Copper Metal Foam Heat Exchanger - A Comparative Study

机译：铝和铜金属泡沫换热器流体流动和传热的数值模拟-比较研究。

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摘要

This article discusses about a numerical simulation of a metal foam heat exchanger system carried out by a commercial software. A metal foam layer is attached to the bottom of the heat exchanger to absorb heat from the exhaust hot gas leaving the system. Two types of metal foams with two different pores per inch (PPI) values are considered for heat transfer enhancement. Similarly, two different materials Aluminum and copper, that poses high thermal conductivity, metal foams are considered for the present numerical simulations. The heat exchanger system is simulated over a range of 6-30 m/s fluid velocity. The proposed simulations are compared with theoretical and experimental data available in the literature. The goal is to improve the thermal performance of the heat exchanger by decreasing the pressure drop and maximizing the heat transfer rate. Finally, it has been noticed that the velocity of the fluid decreases as PPI increases at the expense of its pressure drop. The copper metal foam gives a maximum increase of 4-10% heat transfer rate compared to aluminum metal foams for a fluid velocity of 30 m/s.
机译：本文讨论由商用软件执行的金属泡沫热交换器系统的数值模拟。金属泡沫层连接到热交换器的底部，以吸收离开系统的废气中的热量。具有两种不同的每英寸孔隙（PPI）值的两种类型的金属泡沫被认为可以增强传热。类似地，对于当前的数值模拟，考虑了具有高导热性的两种不同材料的铝和铜，金属泡沫。在6-30 m / s的流体速度范围内模拟了热交换器系统。拟议的模拟与文献中的理论和实验数据进行了比较。目标是通过减少压降并最大化传热率来提高热交换器的热性能。最后，已经注意到随着PPI的增加，流体的速度会降低，但会降低其压降。与30 m / s的流体速度相比，铜金属泡沫与铝金属泡沫相比传热速率最大提高4-10％。

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  • 来源
    《Heat Transfer Engineering》 |2020年第10期|637-649|共13页
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    Department of Mechanical Engineering National Institute of Technology Karnataka Surathkal India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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