Effect of Particle Size on fluid flow and heat transfer in a Pipe with slurry flow. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Mandal, D. K.; Hazra, A.; Biswas, N.
• Is Part Of: IOP conference series. Volume 1080:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Slurry flow -- Eulerian method -- Granular pressure -- Heat transfer; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1080/1/012026
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: A three-dimensional numerical simulation is carried out in a straight horizontal pipe to predict the impact of particle size on fluid flow and heat transfer of ash water slurry. Steady turbulent equations are solved by using commercial code Fluent. Eulerian Method is incorporated considering ash as granular material. Fly-ash particle diameter is varied with 12, 20, 28 and 34 µm suspended in water for a flow velocity 4m/s and solid concentration of 40%. The temperature of pipe wall is kept at 400K and the granular temp i.e. slurry temp is taken as 300K. Present study finds asymmetric velocity distribution at higher particle size. Pumping power increases with particle size. Granular pressure and heat transfer increases with particle size. Granular pressure is maximum at bottom of the wall.