Experimental investigation of flow and heat transfer in rectangular cross-sectioned duct with baffles mounted on the bottom surface with different inclination angles

• Published in: Heat and mass transfer Vol. 50; no. 2; pp. 169 - 181
• Main Authors: Arslan, Kamil, Onur, Nevzat
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-02-2014
• Subjects: Engineering; Engineering Thermodynamics; Heat and Mass Transfer; Industrial Chemistry/Chemical Engineering; Original; Thermodynamics; Heat Transfer Enhancement; Heat Transfer; Heat Transfer Coefficient; Friction Factor; Test Section
• ISSN: 0947-7411; 1432-1181
• DOI: 10.1007/s00231-013-1236-6

In this study, steady-state forced convection heat transfer and pressure drop characteristics in a horizontal rectangular cross-sectioned duct, baffles mounted on the bottom surface with different inclination angles were investigated experimentally in the Reynolds number range from 1 × 10
3
to 1 × 10
4
. The study was performed under turbulent flow conditions. Effects of different baffle inclination angles on flow and heat transfer were studied. Results are also presented in terms of thermal enhancement factor. It is observed that increasing in baffle inclination angle enhances the heat transfer and causes an increase in pressure drop in the duct.