Experimental and numerical assessment of the hydraulic behavior of a pilot-scale Periodic Anaerobic Baffled Reactor (PABR)
| Autor: | Gerasimos Lyberatos, G. Seintis, G. Pashos, T. Kamperidis, Ioannis Michalopoulos, Konstantina Papadopoulou, Andreas G. Boudouvis, C. Lytras |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry General Chemical Engineering Nuclear engineering 0208 environmental biotechnology Mixing (process engineering) Pilot scale Continuous stirred-tank reactor 02 engineering and technology 010501 environmental sciences Computational fluid dynamics Residence time distribution 01 natural sciences 020801 environmental engineering Computer Science Applications Wastewater Plug flow reactor model business Anaerobic exercise 0105 earth and related environmental sciences |
| Zdroj: | Computers & Chemical Engineering. 111:278-287 |
| ISSN: | 0098-1354 |
| DOI: | 10.1016/j.compchemeng.2018.01.014 |
| Popis: | A major factor that determines the mixing pattern inside a reactor is the Residence Time Distribution (RTD). The aim of this paper is the study of the hydraulic behavior of a pilot-scale Periodic Anaerobic Baffled Reactor (PABR) through experimental RTD tests and the development of a CFD model. The tank in series model was used for the determination of the equivalent number (NR) of Continuous Stirred Tank Reactors (CSTR) that simulates the mixing pattern. The hydraulic “dead” space (Vd) was also calculated. Both experimental and simulation results indicate the flexibility of the reactor to perform as a CSTR (NR= 1, Vd= 38.6%–39.6%), as a Plug Flow Reactor (PFR) (NR= 10–16, Vd= 25%–35.4%) or intermediate between the two, depending on the operating parameters. The CFD model can be used for the optimization of the reactor's geometry and for the selection of the optimal operating parameters depending on the type of wastewater to be treated. |
| Databáze: | OpenAIRE |
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