Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand (II) Lubricant Oil 22

韩崇刚; 杨卫民; 丁玉梅; 关昌峰; 李锋祥; 张震; 阎华

doi:10.1016/S1004-9541(11)60094-3

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Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand (II) Lubricant Oil 22

Updated：2026-01-06

- Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand (II) Lubricant Oil 22
- Chinese Journal of Chemical Engineering Vol. 19, Issue 6, Pages: 1069-1074(2011)
- Affiliations：
  
  1. State Key Laboratory of Organio-Inorganic Composites, Beijing University of Chemical Technology,Beijing,China,100029
  2. Practical New-type Patent Examination Department of State Intellectual Property Office of China,Beijing,China,100191
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(11)60094-3
  CLC：
- Published：2011
- Accepted：
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HAN Chonggang, YANG Weimin, DING Yumei, GUAN Changfeng, LI Fengxiang, ZHANG Zhen, YAN Hua. Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand (II) Lubricant Oil 22[J]. , 2011, 19(6): 1069-1074.
DOI：

HAN Chonggang, YANG Weimin, DING Yumei, GUAN Changfeng, LI Fengxiang, ZHANG Zhen, YAN Hua. Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand (II) Lubricant Oil 22[J]. , 2011, 19(6): 1069-1074. DOI： 10.1016/S1004-9541(11)60094-3.

摘要

Abstract

The paper described experimental investigation of heat transfer and single-phase pressure drop through tubes with different rotor-assembled strands inserted in the Reynolds number range of 800-9000 with lubricant as working fluid. In the experiment

fixed mounts were employed to eliminate the entrance effect. The experimental results showed that the employment of fixed mounts led to a visible bias of friction factor in the laminar regime while it could not affect the Nusselt numbers significantly. Experiment for the tube inserted with rotors-assembled strand showed remarkable improvement for heat transfer with the Nusselt number increased by 200%-225% in the laminar regime and 125%-160% in the transitional regime. Meanwhile

the friction factor increased inevitably by 200%-300% within the same range of Reynolds number. The comparison of different rotor-assembled strands inserted tubes and plain tube showed that the heat transfer benefited from the increase of the diameter of rotor-assembled strand with the same lead and the decrease of the lead of rotor-assembled strand

so does the friction factor. Based on experimental data and thorough multivariant linear normal regression method

the correlations of average Nusselt number and friction factor are established.

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