Thermal performance assessment of self-rotating twisted tapes and Al<sub>2</sub>O<sub>3</sub> nanoparticle in a circular pipe

Chuanshuai Dong; Lin Lu; Tao Wen; Shaojie Zhang

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Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe
- Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe
- 中国化学工程学报（英文版） 2021年32卷第4期页码：77-86
- Affiliations：
  
  1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry, School of Chemistry and Chemical Engineering, South China University of Technology,Guangzhou,China,510000
  2. Department of Building Services Engineering, The Hong Kong Polytechnic University, 11 Yuk Choi Road, Hung Hom, Kowloon,Hong Kong,China
  3. Department of Chemical Engineering, Imperial College London, London, United Kingdom
- Author bio：
- Funds：
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  中图分类号：
- 纸质出版：2021
- Accepted：
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Chuanshuai Dong, Lin Lu, Tao Wen, 等. Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe[J]. 中国化学工程学报（英文版）, 2021,32(4):77-86.

O
Chuanshuai Dong, Lin Lu, Tao Wen, 等. Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe[J]. 中国化学工程学报（英文版）, 2021,32(4):77-86. DOI：

O DOI：

摘要

Abstract

In view of the practical importance of the heat transfer devices in various thermal engineering fields including chemical and nuclear engineering

this study aims at developing an effective method of heat transfer enhancement by using self-rotating twisted tapes (SRTTs) and Al

nanoparticles. The effect of the self-rotating twisted tapes and Al

nanoparticles on the thermal performance was comprehensively investigated in a circular pipe. The experimental results indicated the heat transfer rate was effectively improved by SRTTs in comparison of plain tube. In addition

the heat transfer multiplier with SRTTs decreased from 1.38 to 1.08 with the Reynolds number increasing from 19

322 to 64

407

while the friction factor multiplier decreased from 1.61 to 1.32. Besides

the results indicated that the employment of Al

nanoparticles and SRTTs demonstrated superior thermal performance to the single SRTTs. As Reynolds number increases from 19

322 to 64

407

the heat transfer multiplier decreased from 2.08 to 1.18 in the mass concentration of 3.0% and from 1.38 to 1.08 in mass concentration o

f 0.0%. Finally

the new heat transfer and friction factor correlations considering the combined effect of Al

nanoparticle and SRTTs were developed within 10% deviation of experimental values.

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Thermal performance assessment of self-rotating twisted tapes and Al2O3 nanoparticle in a circular pipe

Thermal performance assessment of self-rotating twisted tapes and Al2O3 nanoparticle in a circular pipe

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摘要

Abstract

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references

Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe

Thermal performance assessment of self-rotating twisted tapes and Al₂O₃ nanoparticle in a circular pipe