Experimental investigation on drag reduction of flowing crop suspensions of the pulp fibers in circular pipe heat exchanger
Document Type
Article
Publication Date
5-1-2020
Abstract
Pressure drop measurements were obtained for different kenaf bast pulp fiber suspensions flowing through a circular pipe heat exchanger test loop. The data were generated from the flow loop over a selected range of flow rates and fiber concentrations. It was found that the magnitude of the pressure drop of the kenaf bast fiber suspensions is dependent on the characteristics, concentration, and pulping method of fibers. Considerable drag reduction is obtained for concentrations of 0.6 mass% at high flow rates. Such a reduction of pressure drop is significant for the design and optimization of crop fiber handling equipment and the relevant piping systems. Furthermore, the effects of various fiber processing techniques, fiber properties, and flexibility on pressure drop were studied in relation to the influence on fiber suspension properties.
Keywords
Pulp suspension, Pressure drop, Drag reduction, Fiber concentration, Fiber flexibility
Divisions
fac_eng,sch_ecs
Publication Title
Particulate Science and Technology
Volume
38
Issue
4
Publisher
Taylor & Francis Inc
Publisher Location
530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA