Residence time distribution and Peclet number correlation for continuous oscillatory flow reactors
Само за регистроване кориснике
2017
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
BACKGROUND: Oscillatory baffled reactors have good prospect for use in batch to continuous transition for many industries. For reliable design and scale up it is essential to mathematically describe mixing and flow pattern of oscillatory flow. The aim of this study is to investigate the effects of operating conditions on residence time distribution (RTD) of liquid phase in a continuous oscillatory baffled reactor (COBR) and to propose a correlation that accurately describes the flow pattern. RESULTS: Analysis of results obtained for a wide variety of operating conditions in two geometrically similar reactors show that increase of oscillation frequency and amplitude both decrease axial dispersion, with a more prominent effect of amplitude. Proposed power-law correlation is in very good agreement with all performed experiments. Peclet numbers predicted by this correlation are in reasonably good agreement with the literature experimental data and is much better than the ones obtained by t...he commonly used correlation, which contains more fitting parameters. CONCLUSION: Results show that relatively high amplitudes, low frequencies and low to moderate secondary non-oscillatory flow should be used to ensure effective mixing with a low net flow in COBR. Developed correlation offers a simple, yet reliable way to predict the macroscopic flow pattern of liquid in COBR.
Кључне речи:
Reactor Design / Bioreactors / Process Engineering / Process Intensification / MixingИзвор:
Journal of Chemical Technology and Biotechnology, 2017, 92, 8, 2178-2188Издавач:
- Wiley, Hoboken
Финансирање / пројекти:
- Развој и примена нових и традиционалних технологија у производњи конкурентних прехрамбених производа са додатом вредношћу за европско и светско тржиште - Створимо богатство из богатства Србије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46001)
- Развој нових инкапсулационих и ензимских технологија за производњу биокатализатора и биолошки активних компонената хране у циљу повећања њене конкурентности, квалитета и безбедности (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46010)
- Развој ефикаснијих хемијско-инжењерских процеса заснован на истраживањима феномена преноса и принципима интензификације процеса (RS-MESTD-Basic Research (BR or ON)-172022)
DOI: 10.1002/jctb.5242
ISSN: 0268-2575
WoS: 000423721800037
Scopus: 2-s2.0-85016933558
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Slavnić, Danijela AU - Živković, Luka AU - Bjelić, Ana V. AU - Bugarski, Branko AU - Nikačević, Nikola PY - 2017 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3624 AB - BACKGROUND: Oscillatory baffled reactors have good prospect for use in batch to continuous transition for many industries. For reliable design and scale up it is essential to mathematically describe mixing and flow pattern of oscillatory flow. The aim of this study is to investigate the effects of operating conditions on residence time distribution (RTD) of liquid phase in a continuous oscillatory baffled reactor (COBR) and to propose a correlation that accurately describes the flow pattern. RESULTS: Analysis of results obtained for a wide variety of operating conditions in two geometrically similar reactors show that increase of oscillation frequency and amplitude both decrease axial dispersion, with a more prominent effect of amplitude. Proposed power-law correlation is in very good agreement with all performed experiments. Peclet numbers predicted by this correlation are in reasonably good agreement with the literature experimental data and is much better than the ones obtained by the commonly used correlation, which contains more fitting parameters. CONCLUSION: Results show that relatively high amplitudes, low frequencies and low to moderate secondary non-oscillatory flow should be used to ensure effective mixing with a low net flow in COBR. Developed correlation offers a simple, yet reliable way to predict the macroscopic flow pattern of liquid in COBR. PB - Wiley, Hoboken T2 - Journal of Chemical Technology and Biotechnology T1 - Residence time distribution and Peclet number correlation for continuous oscillatory flow reactors EP - 2188 IS - 8 SP - 2178 VL - 92 DO - 10.1002/jctb.5242 ER -
@article{ author = "Slavnić, Danijela and Živković, Luka and Bjelić, Ana V. and Bugarski, Branko and Nikačević, Nikola", year = "2017", abstract = "BACKGROUND: Oscillatory baffled reactors have good prospect for use in batch to continuous transition for many industries. For reliable design and scale up it is essential to mathematically describe mixing and flow pattern of oscillatory flow. The aim of this study is to investigate the effects of operating conditions on residence time distribution (RTD) of liquid phase in a continuous oscillatory baffled reactor (COBR) and to propose a correlation that accurately describes the flow pattern. RESULTS: Analysis of results obtained for a wide variety of operating conditions in two geometrically similar reactors show that increase of oscillation frequency and amplitude both decrease axial dispersion, with a more prominent effect of amplitude. Proposed power-law correlation is in very good agreement with all performed experiments. Peclet numbers predicted by this correlation are in reasonably good agreement with the literature experimental data and is much better than the ones obtained by the commonly used correlation, which contains more fitting parameters. CONCLUSION: Results show that relatively high amplitudes, low frequencies and low to moderate secondary non-oscillatory flow should be used to ensure effective mixing with a low net flow in COBR. Developed correlation offers a simple, yet reliable way to predict the macroscopic flow pattern of liquid in COBR.", publisher = "Wiley, Hoboken", journal = "Journal of Chemical Technology and Biotechnology", title = "Residence time distribution and Peclet number correlation for continuous oscillatory flow reactors", pages = "2188-2178", number = "8", volume = "92", doi = "10.1002/jctb.5242" }
Slavnić, D., Živković, L., Bjelić, A. V., Bugarski, B.,& Nikačević, N.. (2017). Residence time distribution and Peclet number correlation for continuous oscillatory flow reactors. in Journal of Chemical Technology and Biotechnology Wiley, Hoboken., 92(8), 2178-2188. https://doi.org/10.1002/jctb.5242
Slavnić D, Živković L, Bjelić AV, Bugarski B, Nikačević N. Residence time distribution and Peclet number correlation for continuous oscillatory flow reactors. in Journal of Chemical Technology and Biotechnology. 2017;92(8):2178-2188. doi:10.1002/jctb.5242 .
Slavnić, Danijela, Živković, Luka, Bjelić, Ana V., Bugarski, Branko, Nikačević, Nikola, "Residence time distribution and Peclet number correlation for continuous oscillatory flow reactors" in Journal of Chemical Technology and Biotechnology, 92, no. 8 (2017):2178-2188, https://doi.org/10.1002/jctb.5242 . .