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CLC number: TK22

On-line Access: 2011-01-06

Received: 2010-06-24

Revision Accepted: 2010-11-15

Crosschecked: 2010-12-07

Cited: 22

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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.1 P.63-70

http://doi.org/10.1631/jzus.A1000296


Evaluation of the heat transfer performance of helical coils of non-circular tubes


Author(s):  Jundika C. Kurnia, Agus P. Sasmito, Arun S. Mujumdar

Affiliation(s):  Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore; more

Corresponding email(s):   mpeasm@nus.edu.sg

Key Words:  Coil, Non-circular tube, Heat transfer performance, Mathematical model


Jundika C. Kurnia, Agus P. Sasmito, Arun S. Mujumdar. Evaluation of the heat transfer performance of helical coils of non-circular tubes[J]. Journal of Zhejiang University Science A, 2011, 12(1): 63-70.

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author="Jundika C. Kurnia, Agus P. Sasmito, Arun S. Mujumdar",
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%A Agus P. Sasmito
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%J Journal of Zhejiang University SCIENCE A
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%DOI 10.1631/jzus.A1000296

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T1 - Evaluation of the heat transfer performance of helical coils of non-circular tubes
A1 - Jundika C. Kurnia
A1 - Agus P. Sasmito
A1 - Arun S. Mujumdar
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VL - 12
IS - 1
SP - 63
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Y1 - 2011
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1000296


Abstract: 
This study addresses heat transfer performance of various configurations of coiled non-circular tubes, e.g., in-plane spiral ducts, helical spiral ducts, and conical spiral ducts. The laminar flow of a Newtonian fluid in helical coils made of square cross section tubes is simulated using the computational fluid dynamic approach. The effects of tube Reynolds number, fluid Prandtl number, coil diameter, etc., are quantified and discussed. Both constant wall temperature and constant heat flux conditions are simulated. The effect of in-plane coil versus a cylindrical design of constant coil, as well as a conical coil design is discussed. Results are compared with those for a straight square tube of the same length as that used to form the coils. Advantages and limitations of using coiled tubes are discussed in light of the numerical results.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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