[1]于广滨,毛汉成,陈巨辉,等. 纳米流体在水平直管内的对流换热实验[J].哈尔滨理工大学学报,2018,(02):108-113.[doi:10. 15938/j. jhust. 2018. 02. 019]
 YU Guang-bin,MAO Han-cheng,CHEN Ju-hui,et al. Convective Heat Transfer in a Horizontal Straight Tube of CuO-Ethylene Glycol Nanofluid[J].哈尔滨理工大学学报,2018,(02):108-113.[doi:10. 15938/j. jhust. 2018. 02. 019]
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 纳米流体在水平直管内的对流换热实验
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
期数:
2018年02期
页码:
108-113
栏目:
材料科学与工程
出版日期:
2018-04-25

文章信息/Info

Title:
 Convective Heat Transfer in a Horizontal Straight Tube of CuO-Ethylene Glycol Nanofluid
文章编号:
1007-2683( 2018) 02-0108-06
作者:
 于广滨 毛汉成 陈巨辉 高德军
 ( 哈尔滨理工大学 机械动力工程学院,黑龙江 哈尔滨 150080)
Author(s):
 YU Guang-bin MAO Han-cheng CHEN Ju-hui GAO De-jun
 ( School of Mechanical and Power Engineering,Harbin University of Science and Technology,Harbin 150080,China
关键词:
 纳米流体分散剂换热系数水平直管
Keywords:
 nanofluid dispersing agent heat transfer coefficient horizontal straight pipe
分类号:
TB383
DOI:
10. 15938/j. jhust. 2018. 02. 019
文献标志码:
A
摘要:
 准备了4 种不同浓度的 CuO -乙二醇纳米流体。首先将纳米颗粒与乙二醇液体( 50% 乙二醇和50%水混合液) 直接混合,然后在其添加分散剂,经过超声波振荡和机械搅拌制备了纳米 流体。最后再将其注入到实验循环系统当中,进行换热特性的实验测量。结果表明:纳米流体与基 液相比其换热效果更加明显,其换热系数伴随着纳米流体质量分数的增加而增大。而当以纳米流 体为冷却介质时,纳米流体质量分数越大其泵功的损失也就越大,而且当纳米流体质量分数小于 0. 50%时其换热效果的提高并不明显。当 CuO -乙二醇纳米流体体积分数为0. 50%时,压降提高 了8. 23%而换热系数提高了23. 18%,其综合效益最好。
Abstract:
 Four different concentrations of CuO-ethylene glycol nanoparticles were prepared. The first is the nanoparticles with ethylene glycol liquid ( 50% ethylene glycol and 50% water mixture) is directly mixed,and then on the dispersing agent after ultrasonic vibration and mechanical stirring to prepare nanofluid. Finally,the nanofluid is injected into the experimental cycle system,and the experimental measurement of the heat transfer characteristics is carried out. The results show that the heat transfer effect is more obvious than that of the base fluid,and the heat transfer coefficient increases with the increase of the mass fraction of the nanofluid. When the nanofluid is cooling medium,the greater the mass fraction of nanofluid pump power loss is bigger,and when the mass fraction of nanofluid is less than 0. 50% . the heat transfer effect is not obvious. When the volume fraction of CuO-glycol nanofluid is 0. 50%,the pressure drop increased 8. 23% and the heat transfer coefficient increases by 23. 18%,its comprehensive benefit is best.

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更新日期/Last Update: 2018-06-30