Paper Title :Heat Transfer Enhancement Using Concave And Ribbed Surfaces In Laminar Flows
Author :Onur Yemenici
Article Citation :Onur Yemenici ,
(1970 ) " Heat Transfer Enhancement Using Concave And Ribbed Surfaces In Laminar Flows " ,
International Journal of Advances in Mechanical and Civil Engineering (IJAMCE) ,
pp. 6-8,
Abstract : In the present study, the heat transfer enhancement of laminar air flows over concave and ribbed surfaces have
been investigated experimentally in a wind tunnel. The experiments were performed over a flat plate, a curved surface with a
radius of 2.54 m in concave curvatures and a ribbed surface has a rib aspect ratio (the ratio of the rib width to the rib
height)of 1.2 for the free stream velocity of 2 m/s. A constant-temperature hot wire anemometer and copper-constant
thermocouples were used to the velocity and temperature measurements, respectively. The results show that the heat transfer
rates are increased up to 60% by the concave and 175% by the ribbed surface comparing to the flat plate. It is noted that ribs
give the higher heat transfer augmentation than concave surface.
Keywords — Heat Transfer Enhancement, Laminar Flow, Ribbed Surface, Concave Surface.
Type : Research paper
Published :
DOIONLINE NO - IJAMCE-IRAJ-DOIONLINE-3482
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Copyright: © Institute of Research and Journals
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Published on 2015-12-23 |
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