| Issue |
E3S Web Conf.
Volume 128, 2019
XII International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2019)
|
|
|---|---|---|
| Article Number | 06001 | |
| Number of page(s) | 7 | |
| Section | Multi-Phase Flows | |
| DOI | https://doi.org/10.1051/e3sconf/201912806001 | |
| Published online | 08 November 2019 | |
Experimental investigation on effect of helical grooves on condensation heat transfer performance of vertically oriented copper tubes
1
Advanced Thermo Fluid Research Lab, Department of Mechanical Engineering, College of Engineering Trivandrum,
India
2
Department of Mechanical Engineering, Rajiv Gandhi Institute of Technology Kottayam,
India
* Corresponding author: rajkumar@cet.ac.in
An experimental investigation was conducted to study the influence of pitch of helical grooves on condensation heat transfer performance on vertically oriented copper tubes. The condensation heat transfer coefficient of bare as well as grooved copper tubes of various pitches ranging from 2.54 mm to 22.4mm were studied. The investigation revealed that copper tube with groove pitch ≤ 6.35 mm has an adverse effecton the heat transfer performance in comparison to bare copper. The helical groove with pitch > 6.35 mm showed improvement in heat transfer coefficient. The helical groove with pitch 8.47 mm showed a maximum enhancement of 68.4% in condensation heat transfer coefficient at ∆T = 40°C.
© The Authors, published by EDP Sciences, 2019
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