Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape

P. Murugesan; K. Mayilsamy; S. Suresh

doi:10.1016/S1004-9541(10)60264-9

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Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape

Updated：2026-01-06

- Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape
- Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape
- 中国化学工程学报（英文版） 2010年18卷第4期页码：609-617
- Affiliations：
  
  1. Department of Mechanical Engineering, K. S. Rangasamy College of Technology, Tiruchengode,India,637215
  2. Department of Mechanical Engineering, Institute of Road and Transport Technology, Erode,India,638316
  3. Department of Mechanical Engineering, National Institute of Technology, Tiruchirappalli,India,620015
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(10)60264-9
  中图分类号：
- 纸质出版：2010
- Accepted：
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P. Murugesan, K. Mayilsamy, S. Suresh. Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape[J]. 中国化学工程学报（英文版）, 2010,18(4):609-617.

P. Murugesan, K. Mayilsamy, S. Suresh. Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape[J]. , 2010, 18(4): 609-617.
P. Murugesan, K. Mayilsamy, S. Suresh. Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape[J]. 中国化学工程学报（英文版）, 2010,18(4):609-617. DOI： 10.1016/S1004-9541(10)60264-9.

P. Murugesan, K. Mayilsamy, S. Suresh. Turbulent Heat Transfer and Pressure Drop in Tube Fitted with Square-cut Twisted Tape[J]. , 2010, 18(4): 609-617. DOI： 10.1016/S1004-9541(10)60264-9.

摘要

Abstract

Heat transfer

friction factor and thermal enhancement factor characteristics of a double pipe heat exchanger fitted with square-cut twisted tapes (STT) and plain twisted tapes (PTT) are investigated experimentally using the water as working fluid.The tapes (STT and PTT) have three twist ratios(y=2.0

4.4 and 6.0) and the Reynolds number ranges from 2000 to 12000.The experimental results reveal that heat transfer rate

friction factor and thermal enhancement factor in the tube equipped with STT are significantly higher than those fitted with PTT. The additional disturbance and secondary flow in the vicinity of the tube wall generated by STT are higher compared to that induced by the PTT is referred as the reason for better performance.Over the range considered

the Nusselt number

friction factor and thermal enhancement factor in a tube with STT are respectively

1.03 to 1.14

1.05 to 1.25 and 1.02 to 1.06 times of those in tube with PTT.An empirical correlation is also formulated to match with experimental data of Nusselt number and friction factor for STT and PTT.

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