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首页> 外文期刊>Journal of Thermophysics and Heat Transfer >Convective Heat Transfer Characterization of Aviation Turbine Fuel-Metal Oxide Nanofluids
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Convective Heat Transfer Characterization of Aviation Turbine Fuel-Metal Oxide Nanofluids

机译：航空涡轮燃料金属氧化物纳米流体的对流传热特性

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摘要

A thorough experimental investigation of the thermophysical properties (thermal conductivity, viscosity, and specific heat), heat transfer performance, and pressure drop characteristics of aviation turbine fuel (ATF)-based Al_2O_3, TiO_2, and CuO nanofluids was carried out for potential regenerative cooling application in semicryogenic rocket engines. The effects of volume concentration, size, and material of suspended particles, as well as the effect of the temperature of the nanofluid, were investigated. Although an enhanced thermal conductivity led to an increased heat transfer coefficient, the Prandtl number was seen to have a bigger influence on the heat transfer characteristics. In particular, the correlation developed for the Nusselt number showed a much higher influence of the Prandtl number than for single-phase fluids. As a result, the ATF-CuO nanofluid performed the best amongst the three metal oxide nanofluids at a given particle size, concentration, and temperature. The enhancement is seen to improve with temperature, demonstrating the suitability of such a nanofluid at the conditions encountered during the regenerative cooling of the rocket engines (～150℃).
机译：对基于航空涡轮燃料（ATF）的Al_2O_3，TiO_2和CuO纳米流体的热物理性质（导热系数，粘度和比热），传热性能和压降特性进行了彻底的实验研究，以进行潜在的再生冷却在半低温火箭发动机中的应用。研究了悬浮颗粒的体积浓度，大小和材料的影响，以及纳米流体温度的影响。尽管增强的热导率导致增加的热传递系数，但是可以看到普朗特数对热传递特性具有更大的影响。尤其是，与单相流体相比，针对努塞尔数建立的相关性显示出普朗特数的影响要大得多。结果，在给定的粒径，浓度和温度下，ATF-CuO纳米流体在三种金属氧化物纳米流体中表现最佳。可以看出，这种增强作用随着温度的提高而提高，证明了这种纳米流体在火箭发动机再生冷却（约150℃）期间遇到的条件下的适用性。

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  • 来源
    《Journal of Thermophysics and Heat Transfer》 |2012年第4期|619-628|共10页
  • 作者

    Sandipkumar Sonawane; Upendra Bhandarkar; Bhalchandra Puranik; S. Sunil Kumar;

  • 作者单位

    Indian Institute of Technology Bombay, Mumbai 400076, India;

    Indian Institute of Technology Bombay, Mumbai 400076, India;

    Indian Institute of Technology Bombay, Mumbai 400076, India;

    Indian Space Research Organization, Valiamala, Kerala 695547, 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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  • 正文语种 eng
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