Experimental Studies on Heat Transfer and Friction Factor Characteristics of Al_2O_3/Water Nanofluid in a Circular Pipe Under Transition Flow With Wire Coil Inserts

M. CHANDRASEKAR; S. SURESH; A. CHANDRA BOSE

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Experimental Studies on Heat Transfer and Friction Factor Characteristics of Al_2O_3/Water Nanofluid in a Circular Pipe Under Transition Flow With Wire Coil Inserts

机译：带线圈嵌件过渡流下圆管中Al_2O_3/水纳米流体传热和摩擦系数特性的试验研究

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Heat transfer and friction factor characteristics in a circular tube fitted with wire coil inserts are investigated experimentally using Al_2O_3/water nanofluid as the working fluid. The effects of the pitch ratio and nanofluid on the Nusselt number and the friction factor are determined in a circular tube with fully developed transition flow for Reynolds number in the range of 2500 to 5000. The experiments were performed using wire coil inserts having different pitch ratios with Al_2O_3/water nanofluid having 0.1 volume concentration of nanoparticles as the working fluid. Experiments using the plain tube and with wire coil inserts were also carried out with distilled water as the working fluid for experimental setup validation and comparison. The experimental results reveal that the use of nanofluids increases the heat transfer rate with negligible increase in friction factor in the plain tube and the tube fitted with wire coil inserts. In addition, empirical correlations are proposed based on the experimental results of the present study, which are found to be sufficiently accurate for prediction of the heat transfer and friction factor characteristics.

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来源
《Heat Transfer Engineering》 |2011年第6期|485-496|共12页
作者
M. CHANDRASEKAR; S. SURESH; A. CHANDRA BOSE;
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作者单位

Department of Mechanical Engineering, National Institute of Technolog;

Department of Physics, National Institute of Technology, Tiruchirappalli;

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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);
原文格式 PDF
正文语种英语
中图分类工业用热工设备;
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Experimental Studies on Heat Transfer and Friction Factor Characteristics of Al_2O_3/Water Nanofluid in a Circular Pipe Under Transition Flow With Wire Coil Inserts

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