Influence of the Coolant Flow Containing Silver Nanoparticles (Ag) from an Aqueous Solution Based on Ethylene Glycol (EG50%) on the Thermal-Hydraulic Performance of an Automotive Radiator

纳米科学与工程(英文) Pub Date : 2020-03-04 DOI:10.4236/wjnse.2020.101002

L. C. C. Junior, É. Nogueira

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引用次数: 8

Abstract

A theoretical analysis of the influence of the flow of a coolant containing silver nanoparticle (Ag) in an automotive radiator is presented. The coolant fluid is composed of water or an aqueous solution of Ethylene-Glycol (EG50%) and silver nanoparticles. Ethylene glycol (EG) has been used in automobile radiators for many years due to its compatibility with metals and its anti-cooling properties. Silver nanoparticles are being incorporated into the development of high-precision surgical equipment. It is shown that the rate of heat transfer increases significantly using silver nanoparticles and ethylene glycol and water. There is a maximum for heat exchange between fluids in all analyzed coolant flows—the maximum moves to higher airflow rates when the coolant flow rate is increased. However, the energy dissipation in the stream also increases, but the relationship between the energy dissipated in the flow and the energy transferred in the form of heat is low, which justifies the use of silver nanoparticles and ethylene glycol, or silver nanoparticles and water as a coolant in the automotive vehicle radiator.

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乙二醇(EG50%)水溶液中含银纳米粒子(Ag)的冷却液流量对汽车散热器热工性能的影响

对含银纳米颗粒（Ag）的冷却剂在汽车散热器中的流动影响进行了理论分析。冷却液由水或乙二醇（EG50%）和银纳米颗粒的水溶液组成。乙二醇（EG）由于其与金属的相容性和抗冷却性能，已在汽车散热器中使用多年。银纳米颗粒正被纳入高精度外科设备的开发中。研究表明，使用银纳米颗粒、乙二醇和水可以显著提高传热速率。在所有分析的冷却液流中，流体之间的热交换都有一个最大值——当冷却液流速增加时，最大值会移动到更高的气流流速。然而，流中的能量耗散也增加了，但流中耗散的能量与以热的形式传递的能量之间的关系较低，这证明了在汽车散热器中使用银纳米颗粒和乙二醇，或银纳米颗粒与水作为冷却剂是合理的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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纳米科学与工程(英文)

自引率

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发文量

103