Journal
EXPERIMENTAL HEAT TRANSFER
Volume 33, Issue 4, Pages 335-354Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/08916152.2019.1639847
Keywords
Turbulent flow; wavy tape; swirl flow; heat transfer; heat exchanger; forced convection
Categories
Funding
- MCKV Institute of Engineering [MCVKIE/01/2014]
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The heat transfer characteristics of turbulent flow regime through a circular tube with short- and full-length wavy-tape inserts were experimentally investigated. Air was used for Reynolds numbers between 6,000 and 20,000 with different combinations of wave, tape thickness, and diameter ratios. It was found that wavy-tape inserts enhanced the heat transfer by up to 67% higher than smooth tubes. For approximately the same pumping power, the heat transfer for full-length wavy tape was approximately 25% higher than for short-length wavy tape. However, the pumping power of full-length tape was 26% higher than for short-length tape.
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