Development and confirmation of a simple procedure to measure solids distribution in fluidized beds using tracer particles
| Autor: | Xi Gao, Jamal Chaouki, Naoko Ellis, John R. Grace, Tingwen Li, Liqiang Lu, Yupeng Xu, Rouzbeh Jafari, Jonathan Seville, Sina Tebianian, David J. Parker, Thomas Leadbeater |
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| Přispěvatelé: | National Energy and Technology Laboratory (NETL), Leidos Inc., SABIC, West Virginia University [Morgantown], IFP Energies nouvelles (IFPEN), University of Britsh Columbia [Vancouver], École Polytechnique de Montréal (EPM), University of Cape Town, University of Birmingham [Birmingham], This work was performed in support of the US Department of Energy’s Fossil Energy Crosscutting Technology Research Program. The Research was executed through the NETL Research and Innovation Center’s Advanced Reaction Systems FWP. Research performed by Leidos Research Support Team staff was conducted under RSS contract 9243318CFE000003. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Chemical substance General Chemical Engineering coarse grained method tracer particles Measure (physics) 02 engineering and technology computational fluid dynamics Tracking (particle physics) Industrial and Manufacturing Engineering particle tracking 020401 chemical engineering TRACER travelling fluidized bed Calibration [CHIM]Chemical Sciences Positron emission 0204 chemical engineering solids volume fraction [PHYS]Physics [physics] Applied Mathematics General Chemistry Mechanics 021001 nanoscience & nanotechnology Fluidized bed [SDE]Environmental Sciences Particle 0210 nano-technology |
| Zdroj: | Chemical Engineering Science Chemical Engineering Science, Elsevier, 2020, 217, pp.115501. ⟨10.1016/j.ces.2020.115501⟩ |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2020.115501⟩ |
| Popis: | International audience; The spatial distribution of solid particles is a key factor affecting the performance of fluidized bed reactors. Non-invasive techniques including radioactive particle tracking (RPT) and positron emission particle tracking (PEPT) are deployed to measure the solids distribution. Different methods to calibrate the particle tracking measurements have been developed to quantify mean solids concentration. In this paper, gas-solid flows in a traveling fluidized bed are simulated with CFD-DEM and the behavior of different particles, including bulk sand particles and tracer particles are investigated. The simulated hydrodynamics are compared with experimental measurements. Analyses are carried out to derive the mean solids concentration from the tracer particle data. Different calibration approaches are examined, and the simple calibration method is verified. It is shown that the mean solids concentration can be measured reliably using representative tracer particles. The experimental RPT data are then revisited with the new calibration method which yields more realistic results. |
| Databáze: | OpenAIRE |
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