Experimental determination of the energy optimum for the transport of floating particles in pipes
| Autor: | Denis Edelin, C. Josset, Francine Fayolle, Pierre-Clement Czujko, Cathy Castelain |
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| Přispěvatelé: | Laboratoire de thermocinétique [Nantes] (LTN), Centre National de la Recherche Scientifique (CNRS)-Université de Nantes (UN), Centre d'Energétique et de Thermique de Lyon (CETHIL), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Laboratoire de mécanique des fluides (LMF), École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de génie des procédés - environnement - agroalimentaire (GEPEA), Institut Universitaire de Technologie - Nantes (IUT Nantes), Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut Universitaire de Technologie Saint-Nazaire (IUT Saint-Nazaire), Université de Nantes (UN)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Ecole Nationale Vétérinaire, Agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS)-Centre National de la Recherche Scientifique (CNRS)-Université Bretagne Loire (UBL)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut Universitaire de Technologie - La Roche-sur-Yon (IUT La Roche-sur-Yon), Université de Nantes (UN) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Fluid Flow and Transfer Processes
Polypropylene Pressure drop Range (particle radiation) Materials science Mechanical Engineering General Chemical Engineering High velocity Aerospace Engineering 02 engineering and technology Mechanics Flow pattern 021001 nanoscience & nanotechnology 01 natural sciences 010305 fluids & plasmas Volumetric flow rate chemistry.chemical_compound Nuclear Energy and Engineering chemistry 0103 physical sciences Slurry [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph] [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering 0210 nano-technology Energy (signal processing) |
| Zdroj: | Experimental Thermal and Fluid Science Experimental Thermal and Fluid Science, Elsevier, 2015, 68, pp.634-643. ⟨10.1016/j.expthermflusci.2015.06.018⟩ |
| ISSN: | 0894-1777 |
| DOI: | 10.1016/j.expthermflusci.2015.06.018⟩ |
| Popis: | International audience; This paper reports the results of an experimental investigation into the transport of fluids composed of water and polypropylene particles, in order to study the transport of floating particles. The determination of the pressure drop and the delivered concentration, for a wide combination of flow rates (0-0.5 kg s À1), solid loads (0-25 %vol) and particles mean sizes (341-756 lm), enabled the transport efficiency for this kind of slurry in a circular horizontal pipe (30 mm diameter) to be measured. The results are displayed in relation to flow patterns; they show that the size of the particles has a little impact on the transport efficiency. On the contrary, the flow rate and the volumetric concentration have a strong impact on efficiency, because of their large contribution to the flow pattern. The best operating conditions are obtained close to the limit deposition velocity, when the fully suspended pattern is reached. The solids are then well transported with no waste of energy due to a too high velocity. The optimum concentrations, for a wide range of high efficiency are around 20-25 %vol. |
| Databáze: | OpenAIRE |
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