HEAT TRANSFER OF TWO PHASES (WATER – AIR) IN HORIZONTAL SMOOTH AND RIBBED DUCTS

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International Journal of Energy Applications and Technologies
Volume:3 Issue:2
HEAT TRANSFER OF TWO PHASES (WATER – AIR) IN HORIZONTAL SMOOTH AND RIBBED DUCTS

HEAT TRANSFER OF TWO PHASES (WATER – AIR) IN HORIZONTAL SMOOTH AND RIBBED DUCTS

Authors : Riyadh S AlTuraihi, Sarah Hasan Oleiwi

Pages : 41-49

View : 36 | Download : 10

Publication Date : 2016-12-01

Article Type : Other Papers

Abstract :Computational fluid dynamics insert ignore into journalissuearticles values(CFD); was used to investigate the flow of water and air in smooth and ribbed duct. Temperature was applied for the top and the bottom of the duct where the ribs are located. The heat transfer coefficient were calculate at different location inside the ducts and the results was validated using several heat transfer coefficient correlations that was developed by other researchers. Three shapes of ribs was studied which are rectangular, trapezoidal, and triangle. Three water velocities and three air velocities was studied insert ignore into journalissuearticles values(0.4, 0.6, and 0.8 m/s);, and insert ignore into journalissuearticles values(0.12, 0.15, and 0.18 m/s);, respectively. The heat transfer coefficient increased by adding ribs, it also increased as the velocity of the flow increased.
Keywords : Heat transfer, Ribbed duct, Two phase, Ansys Fluent, CFD

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