Investigation of nano liquid-metal fluid (consists of liquid metal Ga and nanoparticles copper) as heat transfer medium in circular tube is performed for the first time. The numerical simulations of heat transfer enhancement of nano liquid-metal fluid in a circular tube subject to a constant wall heat flux are carried out, and the heat transfer performance is evaluated. The two-phase mixture model is used to simulate the flow of nanoparticles–liquid mixture for Reynolds number (Re) from 250 to 1000 and nanoparticle volume fraction (αp) from 0 to 0.1. The results show that the average heat transfer coefficient of nano liquid-metal fluid Ga–Cu is 23.8 times of that of nanofluid water–Cu at Re = 500 and αp = 0.04, and the average wall shear stress of Ga–Cu is 0.0154 Pa, whereas for water–Cu, it is 0.0259 Pa. As Re increases from 250 to 1000, the average heat transfer coefficient of water–Cu is improved by 40%, whereas for Ga–Cu, it is 45.4%. Based on the results in the paper, the nano liquid-metal fluid can be considered as an excellent heat transfer medium of forced convection in circular tube.
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Numerical Study of Heat Transfer Enhancement of Nano Liquid-Metal Fluid Forced Convection in Circular Tube
Xiaoming Zhou,
Xiaoming Zhou
School of Energy and Power Engineering,
Jiangsu University,
Zhenjiang 212013, Jiangsu, China;
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
e-mail: zxmujs@163.com
Jiangsu University,
Zhenjiang 212013, Jiangsu, China;
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
e-mail: zxmujs@163.com
Search for other works by this author on:
Xunfeng Li,
Xunfeng Li
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
Academy of Chinese Sciences,
Beijing 100190, China
Search for other works by this author on:
Keyong Cheng,
Keyong Cheng
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
Academy of Chinese Sciences,
Beijing 100190, China
Search for other works by this author on:
Xiulan Huai
Xiulan Huai
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China;
University of Chinese Academy of Sciences,
Beijing 100190, China
e-mail: hxl@iet.cn
Academy of Chinese Sciences,
Beijing 100190, China;
University of Chinese Academy of Sciences,
Beijing 100190, China
e-mail: hxl@iet.cn
Search for other works by this author on:
Xiaoming Zhou
School of Energy and Power Engineering,
Jiangsu University,
Zhenjiang 212013, Jiangsu, China;
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
e-mail: zxmujs@163.com
Jiangsu University,
Zhenjiang 212013, Jiangsu, China;
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
e-mail: zxmujs@163.com
Xunfeng Li
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
Academy of Chinese Sciences,
Beijing 100190, China
Keyong Cheng
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China
Academy of Chinese Sciences,
Beijing 100190, China
Xiulan Huai
Institute of Engineering Thermophysics,
Academy of Chinese Sciences,
Beijing 100190, China;
University of Chinese Academy of Sciences,
Beijing 100190, China
e-mail: hxl@iet.cn
Academy of Chinese Sciences,
Beijing 100190, China;
University of Chinese Academy of Sciences,
Beijing 100190, China
e-mail: hxl@iet.cn
1Corresponding authors.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received May 30, 2017; final manuscript received March 11, 2018; published online May 7, 2018. Assoc. Editor: Antonio Barletta.
J. Heat Transfer. Aug 2018, 140(8): 081901 (9 pages)
Published Online: May 7, 2018
Article history
Received:
May 30, 2017
Revised:
March 11, 2018
Citation
Zhou, X., Li, X., Cheng, K., and Huai, X. (May 7, 2018). "Numerical Study of Heat Transfer Enhancement of Nano Liquid-Metal Fluid Forced Convection in Circular Tube." ASME. J. Heat Transfer. August 2018; 140(8): 081901. https://doi.org/10.1115/1.4039685
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