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Numerical Study of Fluid Dynamic and Heat Transfer in a Compact Heat Exchanger Using Nanofluids
Joint Authors
Sandhita, E.
Shuaib, N. H.
Gunnasegaran, P.
Abdul Jalal, M. F.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Compact heat exchangers (CHEs) are characterized by a high surface area per unit volume, which can result in a higher efficiency than conventional heat exchangers.
They are widely used in various applications in thermal fluid systems including automotive thermal fluid systems such as radiators for engine cooling systems.
Recent development of nanotechnology brings out a new heat transfer coolant called “nanofluids,” which exhibit larger thermal properties than conventional coolants due to the presence of suspended nanosized composite particles in a base fluid.
In this study, a numerical investigation using different types of nanoparticles in ethylene glycol-base fluid namely copper (Cu), diamond (DM), and silicon dioxide (SiO2) on automobile flat tube plate-fin cross-flow CHE is explored.
The nanoparticles volume fraction of 2% is considered for all types of nanofluids examined in this study.
The three-dimensional (3D) governing equations for both liquid flow and heat transfer are solved using a standard finite volume method (FVM) for the range of Reynolds number between 4000 and 7000.
The standard κ-ε turbulence model with wall function is employed.
The computational model is used to study the variations of shear stress, skin friction, and convective heat transfer coefficient.
All parameters are found to yield higher magnitudes in the developing and developed regions along the flat tubes with the nanofluid flow than base fluid.
The pressure drop is slightly larger for nanofluids but insignificant at outlet region of the tube.
Hence, the usage of nanofluids in CHEs transfers more energy in a cost-effective manner than using conventional coolants.
American Psychological Association (APA)
Gunnasegaran, P.& Shuaib, N. H.& Abdul Jalal, M. F.& Sandhita, E.. 2012. Numerical Study of Fluid Dynamic and Heat Transfer in a Compact Heat Exchanger Using Nanofluids. ISRN Mechanical Engineering،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-482860
Modern Language Association (MLA)
Gunnasegaran, P.…[et al.]. Numerical Study of Fluid Dynamic and Heat Transfer in a Compact Heat Exchanger Using Nanofluids. ISRN Mechanical Engineering No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-482860
American Medical Association (AMA)
Gunnasegaran, P.& Shuaib, N. H.& Abdul Jalal, M. F.& Sandhita, E.. Numerical Study of Fluid Dynamic and Heat Transfer in a Compact Heat Exchanger Using Nanofluids. ISRN Mechanical Engineering. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-482860
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482860