Experimental investigation on drag reduction of flowing crop suspensions of the pulp fibers in circular pipe heat exchanger

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...

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Published inParticulate science and technology Vol. 38; no. 4; pp. 443 - 453
Main Authors Ahmed, Syed Muzamil, Kazi, Salim Newaz, Khan, Ghullamullah, Akram, Naveed, Dahari, Mahidzal, Zubir, Mohd Nashrul Mohd, Ahmad, Pervaiz, Zaharinie, Tuan
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 18.05.2020
Taylor & Francis Ltd
Subjects
Design optimization
Drag reduction
fiber concentration
fiber flexibility
Flow velocity
Handling equipment
Heat exchangers
Kenaf
Pipes
Piping
Pressure drop
Pulp suspension
Pulping
Vegetable fibers
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Summary: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.
ISSN:0272-6351
1548-0046
DOI:10.1080/02726351.2018.1564093