Experimental investigation on momentum and drag reduction of Malaysian crop suspensions in closed conduit flow

International Technical Postgraduate Conference

Ahmed, S.M.^1 ; Kazi, S.N.^1 ; Khan, G.^1 ; Dahari, M.^2 ; Zubir, M.N.M.^1 ; Ahmad, P.^3 ; Montazer, E.^1

Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur

50603, Malaysia^1

Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur

50603, Malaysia^2

Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur

50603, Malaysia^3

关键词: Design and optimization;    Experimental investigations;    Fiber properties;    Fiber suspensions;    Frictional loss;    Pressure drop measurements;    Suspension concentrations;    Suspension flows;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/210/1/012065/pdf
DOI  :  10.1088/1757-899X/210/1/012065

来源: IOP

【 摘 要 】

The study of frictional losses in fiber suspension flow is one of the significant scientific interests as the characteristics of suspension flow considerably changes with shear stress, fiber source, and treatments applied on fibers. Pressure drop measurements were obtained for different Malaysian crop fiber suspensions flowing through a closed conduit. The generated data were gathered over a range of flow rates and suspension concentrations. It was found that the magnitude of the pressure drop of the fiber suspensions is dependent on the concentration, characteristics, and fiber source. Considerable drag reduction is obtained for concentration of 0.6 wt. % at high flow rates. Such a reduction of pressure drop at the particular concentrations and the flow rates is interesting and useful as these data can be used for design and optimization of fiber handling equipment and piping systems. Furthermore, the effect of different fibers, fiber properties and flexibility on pressure drop were studied.