An experimental investigation on heat transfer enhancement in the laminar flow of water/TiO2 nanofluid through a tube heat exchanger fitted with modified butterfly inserts

An experimental investigation on heat transfer enhancement in the laminar flow of water/TiO2 nanofluid through a tube heat exchanger fitted with modified butterfly inserts

Nanofluids are advanced heat transfer fluids that exhibit thermal properties superior than that of the conventional fluids such as water, oil etc. This paper reports the experimental study on convective heat transfer characteristics of water based titanium dioxide nanofluids in fully developed flow...

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Bibliographic Details
Published in:Heat and mass transfer Vol. 54; no. 3; pp. 813 - 829
Main Authors: Venkitaraj, K. P., Suresh, S., Alwin Mathew, T., Bibin, B. S., Abraham, Jisa
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-03-2018
Springer Nature B.V
Subjects:
Convective heat transfer
Deionization
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Heat exchangers
Heat transfer
Industrial Chemistry/Chemical Engineering
Inserts
Laminar flow
Laminar heat transfer
Nanofluids
Nanoparticles
Original
Thermodynamic properties
Thermodynamics
Titanium dioxide
Titanium oxides
Tube heat exchangers
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Summary:Nanofluids are advanced heat transfer fluids that exhibit thermal properties superior than that of the conventional fluids such as water, oil etc. This paper reports the experimental study on convective heat transfer characteristics of water based titanium dioxide nanofluids in fully developed flow through a uniformly heated pipe heat exchanger fitted with modified butterfly inserts. Nanofluids are prepared by dispersing TiO 2 nanoparticles of average particle size 29 nm in deionized water. The heat transfer experiments are performed in laminar regime using nanofluids prepared with 0.1% and 0.3% volume fractions of TiO 2 nanoparticles. The thermal performance characteristics of conventional butterfly inserts and modified butterfly inserts are also compared using TiO 2 nanofluid. The inserts with different pitches 6 cm, 9 cm and 12 cm are tested to determine the effect of pitch distance of inserts in the heat transfer and friction. The experimental results showed that the modification made in the butterfly inserts were able to produce higher heat transfer than conventional butterfly inserts.
ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-017-2174-5