Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand(I) Water

谢鹏程; 李锋祥; 丁玉梅; 阎华; 关昌峰; 杨卫民

doi:10.1016/S1004-9541(09)60004-5

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Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand(I) Water

Updated：2026-01-06

- Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand(I) Water
- Chinese Journal of Chemical Engineering Vol. 16, Issue 6, Pages: 849-855(2008)
- Affiliations：
  
  College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology,Beijing,China,100029
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60004-5
  CLC：
- Published：2008
- Accepted：
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XIE Pengcheng, LI Fengxiang, DING Yumei, YAN Hua, GUAN Changfeng, YANG Weimin. Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand(I) Water[J]. , 2008, 16(6): 849-855.
DOI：

XIE Pengcheng, LI Fengxiang, DING Yumei, YAN Hua, GUAN Changfeng, YANG Weimin. Experimental Study of Heat Transfer Enhancement and Friction Loss Induced by Inserted Rotor-assembled Strand(I) Water[J]. , 2008, 16(6): 849-855. DOI： 10.1016/S1004-9541(09)60004-5.

摘要

Abstract

The single-phase pressure drop and heat transfer in a rotor-assembled strand inserted tube were measured using water as the working fluid.Experiment using a smooth tube was carried out to calibrate the experimental system and the data reduction method.In the experiment

fixed mounts were used to eliminate the entrance effect. The experimental results of smooth tube show that employment of fixed mounts leads to a visible bias of friction factor at relative low Reynolds numbers

although it does not significantly affect the Nusselt numbers.The measured data of inserted tube reveal that rotor-assembled strand can significantly improve heat transfer with the Nusselt number increased by 101.6%-106.6% and the overall heat transfer coefficient increased by 58.1%-67.4% within the Reynolds number range of 20000 to 36000.Meanwhile

friction factor increases by 52.2%-84.2% within the same Reynolds number range.The correlations of Nusselt number and friction factor as function of the Reynolds number and Prandtl number were determined through multivariant linear normal regression.

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